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Disparition d'ubuntu!

ramou

Bonjour,
J'ai un Asus R556YI avec windows 10. J'ai installé Ubuntu 18.04 il y a quelques mois, en double install sur une autre partition. Il y a quelques jours, j'ai commencé à avoir des problèmes de son (les périphériques de son qui disparaissent et qui reviennent aléatoirement de temps en temps mais de moins en souvent quand même). Ce n'est pas mon plus gros problème mais je le signale au cas où...
Et puis récemment, j'ai laissé mon ordi fermé pendant quelques jours avec la session windows ouverte et quand j'ai voulu le réutiliser hier, je redémarre pour passer sur Ubuntu mais plus de grub! Pas de panique, je cherche sur les forums et avec easyUEFI, je fais remonter ubuntu et le grub réapparait, ouf! Oui mais voilà, je choisis ubuntu mais il m'affiche un message d'erreur du style impossible de trouver les fichiers (avec une adresse en hexadécimal?) sur hd0. Press any key to continue...
Mais rien n'y fait, je dois redémarrer brutalement et là, plus d'ubuntu! EasyUEFI ne le trouve plus! Je n'ai malheureusement pas gardé le message d'erreur.
Voilà ce que me donne EasyUEFI:

Je vais faire un boot repair et vous partager le rapport d'info.

J'utilise ubuntu pour mon boulot, et j'aimerais pouvoir récupérer/réinstaller ubuntu sans perdre mes données...

Merci d'avance pour votre aide!

ramou

Voilà l'info de boot repair:
boot repair

Je n'ai pas osé le lancer. Qu'en pensez vous?

malbo

Le Boot-info dont tu as donné le lien dans le post #2 est là :

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]


============================= Boot Info Summary: ===============================

 => No boot loader is installed in the MBR of /dev/sda.
 => Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sdb.
 => No boot loader is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/Boot/bootx64.efi /EFI/Microsoft/Boot/bootmgfw.efi 
                       /EFI/Microsoft/Boot/bootmgr.efi 
                       /EFI/Microsoft/Boot/memtest.efi

sda2: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: /mnt/BootInfo/sda2: unknown filesystem type ''.

sda3: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Boot/BCD /Windows/System32/winload.exe

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 6.03
    Boot sector info:  Syslinux looks at sector 32800 of /dev/sdb1 for its 
                       second stage. The integrity check of Syslinux failed. 
                       No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /syslinux.cfg /casper/vmlinuz.efi 
                       /EFI/BOOT/grubx64.efi /ldlinux.sys

sdc1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sdc2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /EFI/BOOT/fbx64.efi 
                       /EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi 
                       /EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi

sdc3: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 18.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1 4,294,967,295 4,294,967,295  ee GPT

/dev/sda1 ends after the last sector of /dev/sda

GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1   +             2,048       534,527       532,480 EFI System partition
/dev/sda2   +           534,528       567,295        32,768 Microsoft Reserved Partition (Windows)
/dev/sda3               567,296   248,298,474   247,731,179 Data partition (Windows/Linux)
/dev/sda4   +  R    248,299,520   250,068,991     1,769,472 Windows Recovery Environment (Windows)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 14.9 GiB, 15938355200 bytes, 31129600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1    *          2,048    31,129,599    31,127,552   c W95 FAT32 (LBA)


Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdc1                   1 1,953,525,167 1,953,525,167  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sdc1                 2,048 1,534,093,311 1,534,091,264 Data partition (Windows/Linux)
/dev/sdc2         1,534,093,312 1,535,143,935     1,050,624 EFI System partition
/dev/sdc3         1,535,143,936 1,953,523,711   418,379,776 Data partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        A878-E4B0                              vfat       SYSTEM
/dev/sda2                                                          
/dev/sda3        968A7E728A7E4EAD                       ntfs       OS
/dev/sda4        FE945A9C945A576D                       ntfs       
/dev/sdb1        981F-AC74                              vfat       BOOT-REPAIR
/dev/sdc1        FE40FCF340FCB40D                       ntfs       DATA
/dev/sdc2        A5A7-C9DE                              vfat       
/dev/sdc3        9018b4a4-fa24-455f-8d2b-01b920b59af1   ext4       
/dev/zram0       ce449bb8-cfa6-4537-a0a5-da72138c0c67   swap       
/dev/zram1       b8f49364-5de6-4c61-9a80-c4fa3c00e9e4   swap       
/dev/zram2       f5f7c114-2b27-486c-8b29-1235d6846552   swap       
/dev/zram3       8c33ed7b-2519-4bd0-958f-b36a058be22f   swap       

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Apr 28 11:09 ata-SanDisk_SD8SBAT128G1002_171377401217 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 28 11:09 ata-SanDisk_SD8SBAT128G1002_171377401217-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 28 11:09 ata-SanDisk_SD8SBAT128G1002_171377401217-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 28 11:10 ata-SanDisk_SD8SBAT128G1002_171377401217-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Apr 28 11:10 ata-SanDisk_SD8SBAT128G1002_171377401217-part4 -> ../../sda4
lrwxrwxrwx 1 root root  9 Apr 28 11:09 ata-TOSHIBA_MQ01ABD100_37EDSK9WS -> ../../sdc
lrwxrwxrwx 1 root root 10 Apr 28 11:10 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 Apr 28 11:09 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 10 Apr 28 11:09 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part3 -> ../../sdc3
lrwxrwxrwx 1 root root  9 Apr 28 11:09 usb-Generic_Flash_Disk_758D2339355FF6AA3991EAE4C585B7-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Apr 28 11:09 usb-Generic_Flash_Disk_758D2339355FF6AA3991EAE4C585B7-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Apr 28 11:09 wwn-0x50000397a5c03a55 -> ../../sdc
lrwxrwxrwx 1 root root 10 Apr 28 11:10 wwn-0x50000397a5c03a55-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 Apr 28 11:09 wwn-0x50000397a5c03a55-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 10 Apr 28 11:09 wwn-0x50000397a5c03a55-part3 -> ../../sdc3
lrwxrwxrwx 1 root root  9 Apr 28 11:09 wwn-0x5001b444a620920f -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 28 11:09 wwn-0x5001b444a620920f-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 28 11:09 wwn-0x5001b444a620920f-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 28 11:10 wwn-0x5001b444a620920f-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Apr 28 11:10 wwn-0x5001b444a620920f-part4 -> ../../sda4

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sdb1        /cdrom                   vfat       (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


=========================== sdb1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------

if loadfont /boot/grub/font.pf2 ; then
	set gfxmode=auto
	insmod efi_gop
	insmod efi_uga
	insmod gfxterm
	terminal_output gfxterm
fi

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray

menuentry "Boot-Repair-Disk session" {
	set gfxpayload=keep
	linux	/casper/vmlinuz.efi  file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
	initrd	/casper/initrd.lz
}
--------------------------------------------------------------------------------

============================== sdb1/syslinux.cfg: ==============================

--------------------------------------------------------------------------------
DEFAULT loadconfig

LABEL loadconfig
  CONFIG /isolinux/isolinux.cfg
  APPEND /isolinux/
--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             boot/grub/grub.cfg                             1

================= sdb1: Location of files loaded by Syslinux: ==================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             syslinux.cfg                                   1
            ?? = ??             ldlinux.sys                                    1

========================== sdc2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 9018b4a4-fa24-455f-8d2b-01b920b59af1 root hd0,gpt3 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sdc3/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt3'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
else
  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=0
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=1
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt3'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
	else
	  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
	fi
        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.3.0-46-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
	menuentry 'Ubuntu, with Linux 5.3.0-46-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-46-generic-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-46-generic ...'
	        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-46-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-46-generic-recovery-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-46-generic ...'
	        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-45-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-45-generic-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-45-generic ...'
	        linux	/boot/vmlinuz-5.3.0-45-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-45-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-45-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-45-generic-recovery-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-45-generic ...'
	        linux	/boot/vmlinuz-5.3.0-45-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-45-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sdb1)' --class windows --class os $menuentry_id_option 'osprober-efi-A878-E4B0' {
	insmod part_gpt
	insmod fat
	set root='hd1,gpt1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  A878-E4B0
	else
	  search --no-floppy --fs-uuid --set=root A878-E4B0
	fi
	chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sdc3/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda3 during installation
UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
UUID=A5A7-C9DE  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0
--------------------------------------------------------------------------------

=================== sdc3: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

 916.170257568 = 983.730323456  boot/grub/grub.cfg                             3
 813.209690094 = 873.177255936  boot/vmlinuz-5.3.0-45-generic                  2
 740.303440094 = 794.894766080  boot/vmlinuz-5.3.0-46-generic                  1
 740.303440094 = 794.894766080  vmlinuz                                        1
 813.209690094 = 873.177255936  vmlinuz.old                                    2
 827.700717926 = 888.736878592  boot/initrd.img-5.3.0-45-generic               3
 740.544467926 = 795.153567744  boot/initrd.img-5.3.0-46-generic               2
 740.544467926 = 795.153567744  initrd.img                                     2
 827.700717926 = 888.736878592  initrd.img.old                                 3

======================== Unknown MBRs/Boot Sectors/etc: ========================


/dev/sda1: unknown GPT attributes
8000000000000000

/dev/sda2: unknown GPT attributes
8000000000000000

/dev/sda4: unknown GPT attributes
8000000000000001


ADDITIONAL INFORMATION :
=================== log of boot-repair 20200428_1109 ===================
boot-repair version : 4ppa62
boot-sav version : 4ppa62
boot-sav-extra version : 4ppa62
glade2script version : 3.2.3~ppa4
boot-repair is executed in live-session (Boot-Repair-Disk 64bit 1oct2017, zesty, Ubuntu, x86_64)
CPU op-mode(s):      32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
ls: cannot access '/home/usr/.config': No such file or directory

=================== os-prober:
/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sdc3:Ubuntu 18.04.4 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="SYSTEM" UUID="A878-E4B0" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="27d1173c-c004-44d5-9051-a49e4d1e47ab"
/dev/sda3: LABEL="OS" UUID="968A7E728A7E4EAD" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="0ffe7cc6-2ab1-46c5-a997-4b466c06b50b"
/dev/sda4: UUID="FE945A9C945A576D" TYPE="ntfs" PARTUUID="23f23fc4-bf42-45f3-b493-61ffba1d9662"
/dev/sdb1: LABEL="BOOT-REPAIR" UUID="981F-AC74" TYPE="vfat" PARTUUID="03af83db-01"
/dev/loop0: TYPE="squashfs"
/dev/sdc1: LABEL="DATA" UUID="FE40FCF340FCB40D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="7e4b7683-a5ac-46b3-9d01-5a8a3597b7c5"
/dev/sdc2: UUID="A5A7-C9DE" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="f1ea8ae9-14c0-4083-b988-10d49828cbc9"
/dev/sdc3: UUID="9018b4a4-fa24-455f-8d2b-01b920b59af1" TYPE="ext4" PARTUUID="07fb97da-bb92-4aec-937c-b89b480a2cae"
/dev/zram0: UUID="ce449bb8-cfa6-4537-a0a5-da72138c0c67" TYPE="swap"
/dev/zram1: UUID="b8f49364-5de6-4c61-9a80-c4fa3c00e9e4" TYPE="swap"
/dev/zram2: UUID="f5f7c114-2b27-486c-8b29-1235d6846552" TYPE="swap"
/dev/zram3: UUID="8c33ed7b-2519-4bd0-958f-b36a058be22f" TYPE="swap"
/dev/sda2: PARTLABEL="Microsoft reserved partition" PARTUUID="fd6d1735-7c40-4cfe-9485-45a6fba6940e"


2 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda3.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda1/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sdc2/EFI/Boot/fbx64.efi

=================== sdc3/etc/grub.d/ :
drwxr-xr-x  2 root root     4096 Mar 26 10:01 grub.d
total 80
-rwxr-xr-x 1 root root 10046 Mar 18  2019 00_header
-rwxr-xr-x 1 root root  6258 Mar 18  2019 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 18  2019 10_linux
-rwxr-xr-x 1 root root 11298 Mar 18  2019 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 12059 Mar 18  2019 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 18  2019 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 18  2019 40_custom
-rwxr-xr-x 1 root root   216 Mar 18  2019 41_custom
-rw-r--r-- 1 root root   483 Mar 18  2019 README




=================== sdc3/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sdc3: UUID=A5A7-C9DE   (sdc2)

=================== sdc3recordfail=1/grub/grubenv :
recordfail=1



/usr/share/boot-sav/bs-cmd_terminal.sh: line 179: warning: command substitution: ignored null byte in input

=================== efibootmgr -v
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0000,0001
Boot0000* Windows Boot Manager	HD(1,GPT,27d1173c-c004-44d5-9051-a49e4d1e47ab,0x800,0x82000)/File(EFIMICROSOFTBOOTBOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...5................
Boot0001* UEFI: Generic Flash Disk 8.07, Partition 1	PciRoot(0x0)/Pci(0x12,0x0)/USB(0,0)/USB(0,0)/HD(1,MBR,0x3af83db,0x800,0x1daf800)..BO

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda3	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	is-winboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sda3.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sda4.
sdc1	: sdc,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc1.
sdc2	: sdc,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc2.
sdc3	: sdc,	not-sepboot,	grubenv-ng	grub2,	signed grub-pc grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc3.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdc	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:128GB:scsi:512:512:gpt:ATA SanDisk SD8SBAT1:;
1:1049kB:274MB:273MB:fat32:EFI system partition:boot, esp;
2:274MB:290MB:16.8MB::Microsoft reserved partition:msftres;
3:290MB:127GB:127GB:ntfs:Basic data partition:msftdata;
4:127GB:128GB:906MB:ntfs::hidden, diag;

BYT;
/dev/sdb:15.9GB:scsi:512:512:msdos:Generic Flash Disk:;
1:1049kB:15.9GB:15.9GB:fat32::boot, lba;

BYT;
/dev/sdc:1000GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABD1:;
1:1049kB:785GB:785GB:ntfs:Basic data partition:msftdata;
2:785GB:786GB:538MB:fat32:EFI System Partition:boot, esp;
3:786GB:1000GB:214GB:ext4::;

BYT;
/dev/zram3:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram1:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram2:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram0:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
loop0 loop squashfs 629.3M
sda   disk          119.2G
sda1  part vfat       260M SYSTEM
sda2  part             16M
sda3  part ntfs     118.1G OS
sda4  part ntfs       864M
sdb   disk           14.9G
sdb1  part vfat      14.9G BOOT-REPAIR
sdc   disk          931.5G
sdc1  part ntfs     731.5G DATA
sdc2  part vfat       513M
sdc3  part ext4     199.5G
zram0 disk          421.3M
zram1 disk          421.3M
zram2 disk          421.3M
zram3 disk          421.3M

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      0  0  0 running
sda1     0  0  0         /mnt/boot-sav/sda1
sda2     0  0  0
sda3     0  0  0         /mnt/boot-sav/sda3
sda4     0  0  0         /mnt/boot-sav/sda4
sdb      1  0  1 running
sdb1     1  0  1         /cdrom
sdc      1  0  0 running
sdc1     1  0  0         /mnt/boot-sav/sdc1
sdc2     1  0  0         /mnt/boot-sav/sdc2
sdc3     1  0  0         /mnt/boot-sav/sdc3
zram0    0  0  0         [SWAP]
zram1    0  0  0         [SWAP]
zram2    0  0  0         [SWAP]
zram3    0  0  0         [SWAP]


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1698524k,nr_inodes=424631,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=345144k,mode=755)
/dev/sdb1 on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13744)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
configfs on /sys/kernel/config type configfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=345140k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda3 on /mnt/boot-sav/sda3 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdc1 on /mnt/boot-sav/sdc1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdc2 on /mnt/boot-sav/sdc2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sdc3 on /mnt/boot-sav/sdc3 type ext4 (rw,relatime,data=ordered)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sda1 sda2 sda3 sda4 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sdc (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdc1 sdc2 sdc3 size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 ecryptfs fb0 fd full fuse hidraw0 hidraw1 hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-16 i2c-17 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kfd kmsg kvm lightnvm log mapper mcelog media0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sdb sdb1 sdc sdc1 sdc2 sdc3 sg0 sg1 sg2 shm snapshot snd stderr stdin stdout uhid uinput urandom usb userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 08 fe 1b  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 20 08 00 01 02 00 00  00 00 00 00 02 00 00 00  |. ..............|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 b0 e4 78 a8 4e  4f 20 4e 41 4d 45 20 20  |..)..x.NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 b9 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda3
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 a8 08 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ea 13 c4 0e 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  ad 4e 7e 8a 72 7e 8a 96  |.........N~.r~..|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 c0 cc 0e  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff ff 1a 00 00 00 00 00  |................|
00000030  00 20 01 00 00 00 00 00  02 00 00 00 00 00 00 00  |. ..............|
00000040  f6 00 00 00 01 00 00 00  6d 57 5a 94 9c 5a 94 fe  |........mWZ..Z..|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdc1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 5f 70 5b 00 00 00 00  |........._p[....|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  0d b4 fc 40 f3 fc 40 fe  |...........@..@.|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdc2
00000000  eb 58 90 6d 6b 66 73 2e  66 61 74 00 02 08 20 00  |.X.mkfs.fat... .|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 68 70 5b  |........?....hp[|
00000020  00 08 10 00 00 04 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 de c9 a7 a5 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 0e 1f be 77 7c ac  |  FAT32   ...w|.|
00000060  22 c0 74 0b 56 b4 0e bb  07 00 cd 10 5e eb f0 32  |".t.V.......^..2|
00000070  e4 cd 16 cd 19 eb fe 54  68 69 73 20 69 73 20 6e  |.......This is n|
00000080  6f 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 64 69  |ot a bootable di|
00000090  73 6b 2e 20 20 50 6c 65  61 73 65 20 69 6e 73 65  |sk.  Please inse|
000000a0  72 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 66 6c  |rt a bootable fl|
000000b0  6f 70 70 79 20 61 6e 64  0d 0a 70 72 65 73 73 20  |oppy and..press |
000000c0  61 6e 79 20 6b 65 79 20  74 6f 20 74 72 79 20 61  |any key to try a|
000000d0  67 61 69 6e 20 2e 2e 2e  20 0d 0a 00 00 00 00 00  |gain ... .......|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  1.7G     0  1.7G   0% /dev
tmpfs          tmpfs     338M  5.6M  332M   2% /run
/dev/sdb1      vfat       15G  710M   15G   5% /cdrom
/dev/loop0     squashfs  630M  630M     0 100% /rofs
/cow           overlay   1.7G  6.5M  1.7G   1% /
tmpfs          tmpfs     1.7G     0  1.7G   0% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     1.7G     0  1.7G   0% /sys/fs/cgroup
tmpfs          tmpfs     1.7G  4.0K  1.7G   1% /tmp
tmpfs          tmpfs     338M  4.0K  338M   1% /run/user/999
/dev/sda1      vfat      256M   27M  230M  11% /mnt/boot-sav/sda1
/dev/sda3      fuseblk   119G   74G   45G  63% /mnt/boot-sav/sda3
/dev/sda4      fuseblk   864M  441M  424M  52% /mnt/boot-sav/sda4
/dev/sdc1      fuseblk   732G  304G  429G  42% /mnt/boot-sav/sdc1
/dev/sdc2      vfat      512M  6.1M  506M   2% /mnt/boot-sav/sdc2
/dev/sdc3      ext4      196G   24G  162G  13% /mnt/boot-sav/sdc3

=================== fdisk -l:
Disk /dev/loop0: 629.3 MiB, 659873792 bytes, 1288816 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2EA82439-13F1-49A1-B256-FD590A1FE844

Device         Start       End   Sectors   Size Type
/dev/sda1       2048    534527    532480   260M EFI System
/dev/sda2     534528    567295     32768    16M Microsoft reserved
/dev/sda3     567296 248298474 247731179 118.1G Microsoft basic data
/dev/sda4  248299520 250068991   1769472   864M Windows recovery environment


Disk /dev/sdb: 14.9 GiB, 15938355200 bytes, 31129600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x03af83db

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1  *     2048 31129599 31127552 14.9G  c W95 FAT32 (LBA)


Disk /dev/sdc: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 67AE4948-826B-47FE-924D-3124EE20DBED

Device          Start        End    Sectors   Size Type
/dev/sdc1        2048 1534093311 1534091264 731.5G Microsoft basic data
/dev/sdc2  1534093312 1535143935    1050624   513M EFI System
/dev/sdc3  1535143936 1953523711  418379776 199.5G Linux filesystem


Disk /dev/zram0: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram1: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram2: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram3: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sdc3, using the following options:        sdc2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s    use-standard-efi-file


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sdc2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will not act on the boot.

Effectivement, il y a un problème. On ne voit plus d'entrée pour Ubuntu dans le menu du système UEFI :

=================== efibootmgr -v
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0000,0001
Boot0000* Windows Boot Manager	HD(1,GPT,27d1173c-c004-44d5-9051-a49e4d1e47ab,0x800,0x82000)/File(EFIMICROSOFTBOOTBOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...5................
Boot0001* UEFI: Generic Flash Disk 8.07, Partition 1	PciRoot(0x0)/Pci(0x12,0x0)/USB(0,0)/USB(0,0)/HD(1,MBR,0x3af83db,0x800,0x1daf800)..BO

C'est peut-être Windows 10 qui a décidé de faire le grand ménage.
A mon avis, tu peux faire la réparation recommandée de Boot-repair qui devrait faire ce qu'on peut voir en bas du Boot-info :

=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sdc3, using the following options:        sdc2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s    use-standard-efi-file

Si ça ne marche pas à l'issue de la réparation, je te prie de refaire un Boot-info et d'en donner l'URL dans ta réponse.

ikewdu

Salut,

Petite incruste. Les fichiers de démarrage pour l'efi étant présents sur dev/sdc2 (partition qui est montée dans fstab), j'aurais perso déjà tenté un

sudo grub-install
sudo update-grub

(en passant SG2D) par avant de lancer l'artillerie lourde de boot-repair (et ses renommages, ses entrées bidons...)

Ou même carrément, un ajout via le BIOS, ou EasyUEFI ou encore efibootmgr d'une entrée Ubuntu en Nvram. Sur Asus, ça doit passer.

ramou

Merci beaucoup pour vos réponses!
Je précise que je n'ai plus du tout accès à Ubuntu!
Ikewdu, peux tu m'aider plus précisément pour ce qui est de l'ajout via le bios ou easyUEFI?

ramou

Bon, je m'en suis sorti avec easyUEFI! Ouf! J'ai retrouvé ubuntu et tout mon travail...
A votre avis, c'est dû à des mises jours de windows? Est ce que le problème de disparition de périphériques de son est lié?
Je suis assez inquiet, tout se passait bien pendant les premiers mois, et là j'enchaine les soucis!

Merci beaucoup du coup de main

malbo

Pour qu'on puisse tenter de comprendre, je te prie de faire un Boot-info depuis une session de ton Ubuntu installé et de donner l'URL de ce Boot-info dans ta réponse.

ramou

Je ne comprends plus rien! J'ai pu redémarrer avec Ubuntu en le recréant dans easyUEFI avec le fichier grubx64.efi. J'ai fait des mises à jour, je redémarre et... de nouveau sous windows, pas de grub, et plus de trace de ubuntu dans easyUEFI!
Est-ce le bon fichier?
Je refais des essais...

ramou

J'ai beau essayer avec différents fichiers *.efi proposés par easyUEFI, au redémarrage, il oublie tout et il ne reste que windows. J'ai essayé de l'ajouter aussi depuis le BIOS mais sans résultat (en fait je n'arrive pas à retrouver l'emplacement de mon grubx64.efi).

Des idées pour m'aider? je suis bloqué...

ikewdu

Re,

Pour moi, le problème vient nécessairement de ton bios. J'ai peur que ni boot-repair ni quelque autre logiciel ne puisse résoudre ton cas. Ton choix de grubx64.efi est bon puisque le secure-boot est désactivé. Tu peux essayer de le réactiver et tester l'entrée shimx64.efi. Sait-on jamais.

A partir de là, quelles sont les pistes possibles (je te les donne sans conviction, car c'est toujours périlleux ) ?

- Ajouter les fichiers grub à la partition efi du disque sda... Je ne vois pourquoi ça aurait fonctionné auparavant dans l'état actuel.
- Permuter l'ordre des disques (physiquement ou dans le bios)... Ce serait une première en UEFI.
- Tenter d'ajouter l'entrée après avoir activé le mode superutilisateur avec MP dans le bios. Acer est friand de cela, mais pas Asus.
- Voir si Asus propose une mise à jour du bios-uefi. Un souci de ce côté-là est possible.
- Un problème de pile interne ??? Là encore, je n'y crois guère.
- Tester avec Refind ? Il n'y a pas de raison que le PC mémorise mieux l'entrée avec Refind.

Après je n'ai plus d'idée sinon celle de trafiquer le démarrage de Windows avec bcdedit ou par renommage de fichier, chose que je n'aime pas trop conseiller. Malbo aura peut-être une proposition à laquelle je ne pense pas...

ramou

Alors... Je suis sous Ubuntu! En recréant avec grubx64 et en le montant en 1er, je l'ai trouvé en faisant Echap au démarrage en 2ème position. J'avais déjà essayé et il n'apparaissait pas avant!
Il y a beaucoup d'instabilité dans mon bios visiblement.

Du coup, j'en profite pour faire grub-install et update-grub... Mais j'ai un peu peur de redémarrer! Y a-t-il autre chose à faire avant de risquer un redémarrage?

malbo

Avant de redémarrer, je te prie de faire ce que je t'ai demandé dans le post #7

ramou

Je n'ai pas eu le temps! J'ai perdu la connexion puis la barre de menu et il s'est éteint. Enfin, je ne sais pas s'il s'eteint ou redémarre... il est en train d'énumérer des milliers d'erreurs "failed to write entry, read-only file system". Ca fait deja un moment qu'il fait ça, je n'ai pas osé l'interrompre

ikewdu

Re,

Il y a, je le crains, quelque chose qui cloche dans ton PC. Ca dépasse mes compétences.

ramou

Je ne suis pas très optimiste non plus 🙁
Est ce que tu penses que formater et réinstaller ubuntu sur la partition pourrait résoudre le problème?

ikewdu

Franchement, je n'en ai aucune idée. Je préfère m'abstenir et ne pas t'embarquer dans des directions hasardeuses. Essaie de refaire un rapport boot-info depuis le live et attends que malbo revienne. Il aura peut-être une idée que je n'ai pas.

malbo

Bonjour,
Si tu craques et que tu réinstalles Ubuntu, je te suggère de ne plus chercher à avoir une partition EFI sur le disque dur mais d'utiliser la partition EFI (sda1) qui se trouve sur le SSD. Il faudra donc laisser en place le SSD pendant l'installation de Ubuntu et procéder comme suit : depuis la session live de Ubuntu, tu supprimes les deux partitions sdc2 et sdc3 avec Gparted pour ne laisser que la partition sdc1 (format NTFS) dont le label est DATA. Tu lances l'installation de Ubuntu depuis la session live et tu sélectionnes "Autre chose" à l'étape "Type d'installation". Tu crées une seule partition EXT4 à côté de la partition DATA et tu la définies comme partition racine. L'installateur de Ubuntu mettra automatiquement les éléments de démarrage de Ubuntu dans la partition EFI sda1 et ça devrait marcher.

EDIT : tant qu'on est en dépannage, je te prie de ne pas bidouiller dans ton coin ni avec EasyUEFI ni avec Boot-repair : contente-toi de faire un Boot-info et d'en donner l'URL dans ta réponse si ça merde afin qu'on puisse analyser la chose et te proposer la solution.

ramou

Merci Malbo.
Voila le rapport boot info
http://paste.ubuntu.com/p/gTqjRDHxZN/
J ai deja fait un boot repair, j espere ne pas avoir fait de betises!

malbo

Bonjour,
Ton Boot-info est là :

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]


============================= Boot Info Summary: ===============================

 => No boot loader is installed in the MBR of /dev/sda.
 => Syslinux MBR (5.00 and higher) is installed in the MBR of /dev/sdb.
 => No boot loader is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/Boot/bkpbootx64.efi /EFI/Boot/bootx64.efi 
                       /EFI/ubuntu/shimx64.efi 
                       /EFI/Microsoft/Boot/bootmgfw.efi 
                       /EFI/Microsoft/Boot/bootmgr.efi 
                       /EFI/Microsoft/Boot/memtest.efi 
                       /boot-repair/log/20200428_154830/sda1/bootx64.efi 
                       /boot-repair/log/20200428_154830/sdc2/bootx64.efi

sda2: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: /mnt/BootInfo/sda2: unknown filesystem type ''.

sda3: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Boot/BCD /Windows/System32/winload.exe

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 6.03
    Boot sector info:  Syslinux looks at sector 32800 of /dev/sdb1 for its 
                       second stage. The integrity check of Syslinux failed. 
                       No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /syslinux.cfg /casper/vmlinuz.efi 
                       /EFI/BOOT/grubx64.efi /ldlinux.sys

sdc1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sdc2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /EFI/BOOT/bkpbootx64.efi 
                       /EFI/BOOT/bootx64.efi /EFI/BOOT/fbx64.efi 
                       /EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi 
                       /EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi

sdc3: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 18.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1 4,294,967,295 4,294,967,295  ee GPT

/dev/sda1 ends after the last sector of /dev/sda

GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1   +             2,048       534,527       532,480 EFI System partition
/dev/sda2   +           534,528       567,295        32,768 Microsoft Reserved Partition (Windows)
/dev/sda3               567,296   248,298,474   247,731,179 Data partition (Windows/Linux)
/dev/sda4   +  R    248,299,520   250,068,991     1,769,472 Windows Recovery Environment (Windows)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 14.9 GiB, 15938355200 bytes, 31129600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1    *          2,048    31,129,599    31,127,552   c W95 FAT32 (LBA)


Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdc1                   1 1,953,525,167 1,953,525,167  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sdc1                 2,048 1,534,093,311 1,534,091,264 Data partition (Windows/Linux)
/dev/sdc2         1,534,093,312 1,535,143,935     1,050,624 EFI System partition
/dev/sdc3         1,535,143,936 1,953,523,711   418,379,776 Data partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        A878-E4B0                              vfat       SYSTEM
/dev/sda2                                                          
/dev/sda3        968A7E728A7E4EAD                       ntfs       OS
/dev/sda4        FE945A9C945A576D                       ntfs       
/dev/sdb1        981F-AC74                              vfat       BOOT-REPAIR
/dev/sdc1        FE40FCF340FCB40D                       ntfs       DATA
/dev/sdc2        A5A7-C9DE                              vfat       
/dev/sdc3        9018b4a4-fa24-455f-8d2b-01b920b59af1   ext4       
/dev/zram0       3fd84713-8d30-4aae-8401-97e09c66d468   swap       
/dev/zram1       a068c97d-5341-4e51-9930-f44b640df2a3   swap       
/dev/zram2       075020f5-06bf-4c93-b20f-97d5e143d1e1   swap       
/dev/zram3       8e463b27-fb30-4f9f-9972-38997dc9f6f8   swap       

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Apr 30 10:34 ata-SanDisk_SD8SBAT128G1002_171377401217 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 30 10:34 ata-SanDisk_SD8SBAT128G1002_171377401217-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 30 10:34 ata-SanDisk_SD8SBAT128G1002_171377401217-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 30 10:35 ata-SanDisk_SD8SBAT128G1002_171377401217-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Apr 30 10:35 ata-SanDisk_SD8SBAT128G1002_171377401217-part4 -> ../../sda4
lrwxrwxrwx 1 root root  9 Apr 30 10:34 ata-TOSHIBA_MQ01ABD100_37EDSK9WS -> ../../sdc
lrwxrwxrwx 1 root root 10 Apr 30 10:35 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 Apr 30 10:34 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 10 Apr 30 10:34 ata-TOSHIBA_MQ01ABD100_37EDSK9WS-part3 -> ../../sdc3
lrwxrwxrwx 1 root root  9 Apr 30 10:34 usb-Generic_Flash_Disk_758D2339355FF6AA3991EAE4C585B7-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Apr 30 10:34 usb-Generic_Flash_Disk_758D2339355FF6AA3991EAE4C585B7-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Apr 30 10:34 wwn-0x50000397a5c03a55 -> ../../sdc
lrwxrwxrwx 1 root root 10 Apr 30 10:35 wwn-0x50000397a5c03a55-part1 -> ../../sdc1
lrwxrwxrwx 1 root root 10 Apr 30 10:34 wwn-0x50000397a5c03a55-part2 -> ../../sdc2
lrwxrwxrwx 1 root root 10 Apr 30 10:34 wwn-0x50000397a5c03a55-part3 -> ../../sdc3
lrwxrwxrwx 1 root root  9 Apr 30 10:34 wwn-0x5001b444a620920f -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 30 10:34 wwn-0x5001b444a620920f-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 30 10:34 wwn-0x5001b444a620920f-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Apr 30 10:35 wwn-0x5001b444a620920f-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Apr 30 10:35 wwn-0x5001b444a620920f-part4 -> ../../sda4

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sdb1        /cdrom                   vfat       (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


=========================== sdb1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------

if loadfont /boot/grub/font.pf2 ; then
	set gfxmode=auto
	insmod efi_gop
	insmod efi_uga
	insmod gfxterm
	terminal_output gfxterm
fi

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray

menuentry "Boot-Repair-Disk session" {
	set gfxpayload=keep
	linux	/casper/vmlinuz.efi  file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
	initrd	/casper/initrd.lz
}
--------------------------------------------------------------------------------

============================== sdb1/syslinux.cfg: ==============================

--------------------------------------------------------------------------------
DEFAULT loadconfig

LABEL loadconfig
  CONFIG /isolinux/isolinux.cfg
  APPEND /isolinux/
--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             boot/grub/grub.cfg                             1

================= sdb1: Location of files loaded by Syslinux: ==================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             syslinux.cfg                                   1
            ?? = ??             ldlinux.sys                                    1

========================== sdc2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 9018b4a4-fa24-455f-8d2b-01b920b59af1 root hd2,gpt3 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sdc3/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd2,gpt3'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
else
  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=1
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd2,gpt3'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
	else
	  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
	fi
        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.3.0-46-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
	menuentry 'Ubuntu, with Linux 5.3.0-46-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-46-generic-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd2,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-46-generic ...'
	        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-46-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-46-generic-recovery-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd2,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-46-generic ...'
	        linux	/boot/vmlinuz-5.3.0-46-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-45-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-45-generic-advanced-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd2,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-45-generic ...'
	        linux	/boot/vmlinuz-5.3.0-45-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-45-generic
	}
	menuentry 'Ubuntu, with Linux 5.3.0-45-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-45-generic-recovery-9018b4a4-fa24-455f-8d2b-01b920b59af1' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd2,gpt3'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt3 --hint-efi=hd2,gpt3 --hint-baremetal=ahci2,gpt3  9018b4a4-fa24-455f-8d2b-01b920b59af1
		else
		  search --no-floppy --fs-uuid --set=root 9018b4a4-fa24-455f-8d2b-01b920b59af1
		fi
		echo	'Loading Linux 5.3.0-45-generic ...'
	        linux	/boot/vmlinuz-5.3.0-45-generic root=UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.3.0-45-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root A5A7-C9DE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root A5A7-C9DE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root A5A7-C9DE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root A5A7-C9DE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root A878-E4B0
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "Windows Boot UEFI loader" {
search --fs-uuid --no-floppy --set=root A878-E4B0
chainloader (${root})/EFI/Boot/bkpbootx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-efi-A878-E4B0' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  A878-E4B0
	else
	  search --no-floppy --fs-uuid --set=root A878-E4B0
	fi
	chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sdc3/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda3 during installation
UUID=9018b4a4-fa24-455f-8d2b-01b920b59af1 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
#UUID=A5A7-C9DE  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0
UUID=A5A7-C9DE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sdc3: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

 916.142402649 = 983.700414464  boot/grub/grub.cfg                             1
 813.209690094 = 873.177255936  boot/vmlinuz-5.3.0-45-generic                  2
 740.303440094 = 794.894766080  boot/vmlinuz-5.3.0-46-generic                  1
 740.303440094 = 794.894766080  vmlinuz                                        1
 813.209690094 = 873.177255936  vmlinuz.old                                    2
 827.700717926 = 888.736878592  boot/initrd.img-5.3.0-45-generic               3
 740.544467926 = 795.153567744  boot/initrd.img-5.3.0-46-generic               2
 740.544467926 = 795.153567744  initrd.img                                     2
 827.700717926 = 888.736878592  initrd.img.old                                 3

======================== Unknown MBRs/Boot Sectors/etc: ========================


/dev/sda1: unknown GPT attributes
8000000000000000

/dev/sda2: unknown GPT attributes
8000000000000000

/dev/sda4: unknown GPT attributes
8000000000000001


ADDITIONAL INFORMATION :
=================== log of boot-repair 20200430_1034 ===================
boot-repair version : 4ppa62
boot-sav version : 4ppa62
boot-sav-extra version : 4ppa62
glade2script version : 3.2.3~ppa4
boot-repair is executed in live-session (Boot-Repair-Disk 64bit 1oct2017, zesty, Ubuntu, x86_64)
CPU op-mode(s):      32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
ls: cannot access '/home/usr/.config': No such file or directory

=================== os-prober:
/dev/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sdc3:Ubuntu 18.04.4 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="SYSTEM" UUID="A878-E4B0" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="27d1173c-c004-44d5-9051-a49e4d1e47ab"
/dev/sda3: LABEL="OS" UUID="968A7E728A7E4EAD" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="0ffe7cc6-2ab1-46c5-a997-4b466c06b50b"
/dev/sda4: UUID="FE945A9C945A576D" TYPE="ntfs" PARTUUID="23f23fc4-bf42-45f3-b493-61ffba1d9662"
/dev/sdb1: LABEL="BOOT-REPAIR" UUID="981F-AC74" TYPE="vfat" PARTUUID="03af83db-01"
/dev/loop0: TYPE="squashfs"
/dev/sdc1: LABEL="DATA" UUID="FE40FCF340FCB40D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="7e4b7683-a5ac-46b3-9d01-5a8a3597b7c5"
/dev/sdc2: UUID="A5A7-C9DE" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="f1ea8ae9-14c0-4083-b988-10d49828cbc9"
/dev/sdc3: UUID="9018b4a4-fa24-455f-8d2b-01b920b59af1" TYPE="ext4" PARTUUID="07fb97da-bb92-4aec-937c-b89b480a2cae"
/dev/zram0: UUID="3fd84713-8d30-4aae-8401-97e09c66d468" TYPE="swap"
/dev/zram1: UUID="a068c97d-5341-4e51-9930-f44b640df2a3" TYPE="swap"
/dev/zram2: UUID="075020f5-06bf-4c93-b20f-97d5e143d1e1" TYPE="swap"
/dev/zram3: UUID="8e463b27-fb30-4f9f-9972-38997dc9f6f8" TYPE="swap"
/dev/sda2: PARTLABEL="Microsoft reserved partition" PARTUUID="fd6d1735-7c40-4cfe-9485-45a6fba6940e"


2 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda3.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda1/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bootx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda1/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sdc2/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sdc2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sdc2/EFI/Boot/fbx64.efi
Presence of bkp file detected: /mnt/boot-sav/sdc2/EFI/BOOT/bkpbootx64.efi

=================== sdc3/etc/grub.d/ :
drwxr-xr-x  2 root root     4096 Apr 28 15:49 grub.d
total 84
-rwxr-xr-x 1 root root 10046 Mar 18  2019 00_header
-rwxr-xr-x 1 root root  6258 Mar 18  2019 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 18  2019 10_linux
-rwxr-xr-x 1 root root 11298 Mar 18  2019 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root   844 Apr 28 15:49 25_custom
-rwxr-xr-x 1 root root 12059 Mar 18  2019 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 18  2019 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 18  2019 40_custom
-rwxr-xr-x 1 root root   216 Mar 18  2019 41_custom
-rw-r--r-- 1 root root   483 Mar 18  2019 README




=================== sdc3/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sdc3: UUID=A5A7-C9DE	 (sdc2)
/usr/share/boot-sav/bs-cmd_terminal.sh: line 179: warning: command substitution: ignored null byte in input

=================== efibootmgr -v
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0001,0000
Boot0000* Windows Boot Manager	HD(1,GPT,27d1173c-c004-44d5-9051-a49e4d1e47ab,0x800,0x82000)/File(EFIMICROSOFTBOOTBOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...5................
Boot0001* btrpr	HD(1,MBR,0x3af83db,0x800,0x1daf800)/File(EFIBOOTgrubx64.efi)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda3	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	is-winboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sda3.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sda4.
sdc1	: sdc,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc1.
sdc2	: sdc,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc2.
sdc3	: sdc,	not-sepboot,	grubenv-ok	grub2,	signed grub-pc grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sdc3.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdc	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:128GB:scsi:512:512:gpt:ATA SanDisk SD8SBAT1:;
1:1049kB:274MB:273MB:fat32:EFI system partition:boot, esp;
2:274MB:290MB:16.8MB::Microsoft reserved partition:msftres;
3:290MB:127GB:127GB:ntfs:Basic data partition:msftdata;
4:127GB:128GB:906MB:ntfs::hidden, diag;

BYT;
/dev/sdb:15.9GB:scsi:512:512:msdos:Generic Flash Disk:;
1:1049kB:15.9GB:15.9GB:fat32::boot, lba;

BYT;
/dev/sdc:1000GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABD1:;
1:1049kB:785GB:785GB:ntfs:Basic data partition:msftdata;
2:785GB:786GB:538MB:fat32:EFI System Partition:boot, esp;
3:786GB:1000GB:214GB:ext4::;

BYT;
/dev/zram3:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram1:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram2:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

BYT;
/dev/zram0:442MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:442MB:442MB:linux-swap(v1)::;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
loop0 loop squashfs 629.3M
sda   disk          119.2G
sda1  part vfat       260M SYSTEM
sda2  part             16M
sda3  part ntfs     118.1G OS
sda4  part ntfs       864M
sdb   disk           14.9G
sdb1  part vfat      14.9G BOOT-REPAIR
sdc   disk          931.5G
sdc1  part ntfs     731.5G DATA
sdc2  part vfat       513M
sdc3  part ext4     199.5G
zram0 disk          421.3M
zram1 disk          421.3M
zram2 disk          421.3M
zram3 disk          421.3M

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      0  0  0 running
sda1     0  0  0         /mnt/boot-sav/sda1
sda2     0  0  0
sda3     0  0  0         /mnt/boot-sav/sda3
sda4     0  0  0         /mnt/boot-sav/sda4
sdb      1  0  1 running
sdb1     1  0  1         /cdrom
sdc      1  0  0 running
sdc1     1  0  0         /mnt/boot-sav/sdc1
sdc2     1  0  0         /mnt/boot-sav/sdc2
sdc3     1  0  0         /mnt/boot-sav/sdc3
zram0    0  0  0         [SWAP]
zram1    0  0  0         [SWAP]
zram2    0  0  0         [SWAP]
zram3    0  0  0         [SWAP]


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1698524k,nr_inodes=424631,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=345144k,mode=755)
/dev/sdb1 on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=28,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13496)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=345140k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda3 on /mnt/boot-sav/sda3 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdc1 on /mnt/boot-sav/sdc1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdc2 on /mnt/boot-sav/sdc2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sdc3 on /mnt/boot-sav/sdc3 type ext4 (rw,relatime,data=ordered)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sda1 sda2 sda3 sda4 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sdc (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdc1 sdc2 sdc3 size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 ecryptfs fb0 fd full fuse hidraw0 hidraw1 hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-16 i2c-17 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kfd kmsg kvm lightnvm log mapper mcelog media0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sdb sdb1 sdc sdc1 sdc2 sdc3 sg0 sg1 sg2 shm snapshot snd stderr stdin stdout uhid uinput urandom usb userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 08 fe 1b  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 20 08 00 01 02 00 00  00 00 00 00 02 00 00 00  |. ..............|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 b0 e4 78 a8 4e  4f 20 4e 41 4d 45 20 20  |..)..x.NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 b9 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda3
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 a8 08 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ea 13 c4 0e 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  ad 4e 7e 8a 72 7e 8a 96  |.........N~.r~..|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 c0 cc 0e  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff ff 1a 00 00 00 00 00  |................|
00000030  00 20 01 00 00 00 00 00  02 00 00 00 00 00 00 00  |. ..............|
00000040  f6 00 00 00 01 00 00 00  6d 57 5a 94 9c 5a 94 fe  |........mWZ..Z..|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdc1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 5f 70 5b 00 00 00 00  |........._p[....|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  0d b4 fc 40 f3 fc 40 fe  |...........@..@.|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sdc2
00000000  eb 58 90 6d 6b 66 73 2e  66 61 74 00 02 08 20 00  |.X.mkfs.fat... .|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 68 70 5b  |........?....hp[|
00000020  00 08 10 00 00 04 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 de c9 a7 a5 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 0e 1f be 77 7c ac  |  FAT32   ...w|.|
00000060  22 c0 74 0b 56 b4 0e bb  07 00 cd 10 5e eb f0 32  |".t.V.......^..2|
00000070  e4 cd 16 cd 19 eb fe 54  68 69 73 20 69 73 20 6e  |.......This is n|
00000080  6f 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 64 69  |ot a bootable di|
00000090  73 6b 2e 20 20 50 6c 65  61 73 65 20 69 6e 73 65  |sk.  Please inse|
000000a0  72 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 66 6c  |rt a bootable fl|
000000b0  6f 70 70 79 20 61 6e 64  0d 0a 70 72 65 73 73 20  |oppy and..press |
000000c0  61 6e 79 20 6b 65 79 20  74 6f 20 74 72 79 20 61  |any key to try a|
000000d0  67 61 69 6e 20 2e 2e 2e  20 0d 0a 00 00 00 00 00  |gain ... .......|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  1.7G     0  1.7G   0% /dev
tmpfs          tmpfs     338M  5.6M  332M   2% /run
/dev/sdb1      vfat       15G  710M   15G   5% /cdrom
/dev/loop0     squashfs  630M  630M     0 100% /rofs
/cow           overlay   1.7G  6.5M  1.7G   1% /
tmpfs          tmpfs     1.7G     0  1.7G   0% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     1.7G     0  1.7G   0% /sys/fs/cgroup
tmpfs          tmpfs     1.7G  4.0K  1.7G   1% /tmp
tmpfs          tmpfs     338M  4.0K  338M   1% /run/user/999
/dev/sda1      vfat      256M   33M  224M  13% /mnt/boot-sav/sda1
/dev/sda3      fuseblk   119G   79G   40G  67% /mnt/boot-sav/sda3
/dev/sda4      fuseblk   864M  441M  424M  52% /mnt/boot-sav/sda4
/dev/sdc1      fuseblk   732G  304G  429G  42% /mnt/boot-sav/sdc1
/dev/sdc2      vfat      512M  7.4M  505M   2% /mnt/boot-sav/sdc2
/dev/sdc3      ext4      196G   24G  162G  13% /mnt/boot-sav/sdc3

=================== fdisk -l:
Disk /dev/loop0: 629.3 MiB, 659873792 bytes, 1288816 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2EA82439-13F1-49A1-B256-FD590A1FE844

Device         Start       End   Sectors   Size Type
/dev/sda1       2048    534527    532480   260M EFI System
/dev/sda2     534528    567295     32768    16M Microsoft reserved
/dev/sda3     567296 248298474 247731179 118.1G Microsoft basic data
/dev/sda4  248299520 250068991   1769472   864M Windows recovery environment


Disk /dev/sdb: 14.9 GiB, 15938355200 bytes, 31129600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x03af83db

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1  *     2048 31129599 31127552 14.9G  c W95 FAT32 (LBA)


Disk /dev/sdc: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 67AE4948-826B-47FE-924D-3124EE20DBED

Device          Start        End    Sectors   Size Type
/dev/sdc1        2048 1534093311 1534091264 731.5G Microsoft basic data
/dev/sdc2  1534093312 1535143935    1050624   513M EFI System
/dev/sdc3  1535143936 1953523711  418379776 199.5G Linux filesystem


Disk /dev/zram0: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram1: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram2: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/zram3: 421.3 MiB, 441782272 bytes, 107857 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sdc3, using the following options:        sdc2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s    use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sdc2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will not act on the boot.

Je n'ai pas d'idée sur ce qu'il faudrait faire pour sauver le moribond. Si tu réinstalles, je te prie de bien suivre mes instructions du post #17, sans oublier ce que j'ai rajouté dans l'EDIT : "je te prie de ne pas bidouiller dans ton coin ni avec EasyUEFI ni avec Boot-repair ".

ramou

Je touche un peu mes limites, je ne suis pas sûr de tout comprendre... Et je ne veux pas me planter!
Voilà ce que je comprends:
J'ai 2 disques dur, un SSD et un HD classique, à l'ancienne, normal quoi.
Sur le SSD, j'ai C: et 2 petites partitions (disque 1 partitions 1 et 4), une EFI et une de récupération, tout ça étant dédié à Windows.
Sur le HD, j'ai D: (DATA), une partition d'installation d'ubuntu (disque 0 partition ...) (D'ailleurs c'est normal ces points de suspension: disque 0 partition ... ????) et une partition de données ubuntu (disque 0 partition 3) (si je me souviens bien, c'est comme ça que je l'avais installé).
Je le visualise bien ici:
gdd

Je ne veux surtout pas perdre les données de D:, qui a priori ne sont pas menacées (sauf méga fausse manip de ma part), ni celles d'ubuntu (et là j'ai un peu plus d'inquiétudes).

Où sont sda1, sdc2 et sdc3? Si je comprends bien, il me faudrait repartitionner mon SSD pour mettre l'install de linux dessus, supprimer sdc2 et sdc3 qui sont l'install actulle d'ubuntu et les données (Aïe!).

Autre petite question, quand je vais lancer la session live, je devrais installer Gparted en live, ou je vais le trouver déjà installé?

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