Ton Boot-info dont tu as donné le lien dans le post #8 est là :
Boot Info Script 71f6c5c + Boot-Repair extra info [Boot-Info 16mar2020]
============================= Boot Info Summary: ===============================
=> No boot loader is installed in the MBR of /dev/sda.
sda1: __________________________________________________________________________
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
/efi/ubuntu/grub.cfg
sda2: __________________________________________________________________________
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: 465.8 GiB, 500107862016 bytes, 976773168 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/sda1 1 976,773,167 976,773,167 ee GPT
GUID Partition Table detected.
Partition Attrs Start Sector End Sector # of Sectors System
/dev/sda1 2,048 1,050,623 1,048,576 EFI System partition
/dev/sda2 1,050,624 976,771,071 975,720,448 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/loop1 squashfs
/dev/loop10 squashfs
/dev/loop11 squashfs
/dev/loop12 squashfs
/dev/loop13 squashfs
/dev/loop14 squashfs
/dev/loop15 squashfs
/dev/loop16 squashfs
/dev/loop17 squashfs
/dev/loop2 squashfs
/dev/loop3 squashfs
/dev/loop4 squashfs
/dev/loop5 squashfs
/dev/loop6 squashfs
/dev/loop7 squashfs
/dev/loop8 squashfs
/dev/loop9 squashfs
/dev/sda1 19A8-32D7 vfat
/dev/sda2 c0e95e4c-3067-48a5-b861-dbae1537279f ext4
========================= "ls -l /dev/disk/by-id" output: ======================
total 0
lrwxrwxrwx 1 root root 9 Apr 6 16:17 ata-TOSHIBA_MQ01ABF050_Y6L2S4MNS -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 6 16:17 ata-TOSHIBA_MQ01ABF050_Y6L2S4MNS-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 6 16:17 ata-TOSHIBA_MQ01ABF050_Y6L2S4MNS-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 Apr 6 16:17 wwn-0x5000039765687133 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 6 16:17 wwn-0x5000039765687133-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 6 16:17 wwn-0x5000039765687133-part2 -> ../../sda2
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda1 /boot/efi vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda2 / ext4 (rw,relatime,errors=remount-ro)
========================== sda1/EFI/ubuntu/grub.cfg: ===========================
--------------------------------------------------------------------------------
search.fs_uuid c0e95e4c-3067-48a5-b861-dbae1537279f root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------
========================== sda1/efi/ubuntu/grub.cfg: ===========================
--------------------------------------------------------------------------------
search.fs_uuid c0e95e4c-3067-48a5-b861-dbae1537279f root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------
=========================== sda2/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,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
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=fr_FR
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=0
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep --interruptible 0 ; 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-c0e95e4c-3067-48a5-b861-dbae1537279f' {
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,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
fi
linux /boot/vmlinuz-5.3.0-45-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro quiet splash $vt_handoff
initrd /boot/initrd.img-5.3.0-45-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-c0e95e4c-3067-48a5-b861-dbae1537279f' {
menuentry 'Ubuntu, avec 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-c0e95e4c-3067-48a5-b861-dbae1537279f' {
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,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
fi
echo 'Chargement de Linux 5.3.0-45-generic…'
linux /boot/vmlinuz-5.3.0-45-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro quiet splash $vt_handoff
echo 'Chargement du disque mémoire initial…'
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 $menuentry_id_option 'gnulinux-5.3.0-45-generic-recovery-c0e95e4c-3067-48a5-b861-dbae1537279f' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
fi
echo 'Chargement de Linux 5.3.0-45-generic…'
linux /boot/vmlinuz-5.3.0-45-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro recovery nomodeset
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.3.0-45-generic
}
menuentry 'Ubuntu, avec Linux 5.3.0-42-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-42-generic-advanced-c0e95e4c-3067-48a5-b861-dbae1537279f' {
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,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
fi
echo 'Chargement de Linux 5.3.0-42-generic…'
linux /boot/vmlinuz-5.3.0-42-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro quiet splash $vt_handoff
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.3.0-42-generic
}
menuentry 'Ubuntu, with Linux 5.3.0-42-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.0-42-generic-recovery-c0e95e4c-3067-48a5-b861-dbae1537279f' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 c0e95e4c-3067-48a5-b861-dbae1537279f
else
search --no-floppy --fs-uuid --set=root c0e95e4c-3067-48a5-b861-dbae1537279f
fi
echo 'Chargement de Linux 5.3.0-42-generic…'
linux /boot/vmlinuz-5.3.0-42-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro recovery nomodeset
echo 'Chargement du disque mémoire initial…'
initrd /boot/initrd.img-5.3.0-42-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 ###
### 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 ###
--------------------------------------------------------------------------------
=============================== sda2/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/sda2 during installation
UUID=c0e95e4c-3067-48a5-b861-dbae1537279f / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=19A8-32D7 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda2: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
234.711963654 = 252.020051968 boot/grub/grub.cfg 3
5.204803467 = 5.588615168 boot/vmlinuz-5.3.0-42-generic 1
138.087619781 = 148.270452736 boot/vmlinuz-5.3.0-45-generic 1
138.087619781 = 148.270452736 vmlinuz 1
5.204803467 = 5.588615168 vmlinuz.old 1
431.890708923 = 463.739117568 boot/initrd.img-5.3.0-42-generic 2
431.883338928 = 463.731204096 boot/initrd.img-5.3.0-45-generic 2
431.883338928 = 463.731204096 initrd.img 2
431.890708923 = 463.739117568 initrd.img.old 2
ADDITIONAL INFORMATION :
=================== log of boot-info 20200406_1617 ===================
boot-info version : 4ppa80
boot-sav version : 4ppa80
boot-sav-extra version : 4ppa80
glade2script version : 3.2.4~ppa6
boot-info is executed in installed-session (Ubuntu 18.04.4 LTS, bionic, Ubuntu, x86_64)
CPU op-mode(s): 32-bit, 64-bit
BOOT_IMAGE=/boot/vmlinuz-5.3.0-45-generic root=UUID=c0e95e4c-3067-48a5-b861-dbae1537279f ro quiet splash vt.handoff=1
=================== os-prober:
/dev/sda2:L'OS actuellement utilisé - Ubuntu 18.04.4 LTS CurrentSession:linux
=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/sda1: UUID="19A8-32D7" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="c6a7b1b8-f016-4ee0-8a6b-1c87b0d59e95"
/dev/sda2: UUID="c0e95e4c-3067-48a5-b861-dbae1537279f" TYPE="ext4" PARTUUID="4e229be5-4f0f-46f6-83cc-856a48d0ad78"
/dev/loop8: TYPE="squashfs"
/dev/loop9: TYPE="squashfs"
/dev/loop10: TYPE="squashfs"
/dev/loop11: TYPE="squashfs"
/dev/loop12: TYPE="squashfs"
/dev/loop13: TYPE="squashfs"
/dev/loop14: TYPE="squashfs"
/dev/loop15: TYPE="squashfs"
/dev/loop16: TYPE="squashfs"
/dev/loop17: TYPE="squashfs"
1 disks with OS, 1 OS : 1 Linux, 0 MacOS, 0 Windows, 0 unknown type OS.
=================== /etc/grub.d/ :
drwxr-xr-x 2 root root 4096 mars 22 22:34 grub.d
total 80
-rwxr-xr-x 1 root root 10046 nov. 11 06:52 00_header
-rwxr-xr-x 1 root root 6258 mars 18 2019 05_debian_theme
-rwxr-xr-x 1 root root 12693 nov. 11 06:52 10_linux
-rwxr-xr-x 1 root root 11298 nov. 11 06:52 20_linux_xen
-rwxr-xr-x 1 root root 1992 janv. 28 2016 20_memtest86+
-rwxr-xr-x 1 root root 12059 nov. 11 06:52 30_os-prober
-rwxr-xr-x 1 root root 1418 nov. 11 06:52 30_uefi-firmware
-rwxr-xr-x 1 root root 214 nov. 11 06:52 40_custom
-rwxr-xr-x 1 root root 216 nov. 11 06:52 41_custom
-rw-r--r-- 1 root root 483 nov. 11 06:52 README
=================== /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=0
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 sda2: UUID=19A8-32D7 (sda1)
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/fbx64.efi
/usr/share/boot-sav/bs-cmd_terminal.sh: ligne 195: avertissement : substitution de commande: octet nul ignoré en entrée
=================== efibootmgr -v
BootCurrent: 0000
Timeout: 2 seconds
BootOrder: 0000,0001,0002,0003
Boot0000* ubuntu HD(1,GPT,c6a7b1b8-f016-4ee0-8a6b-1c87b0d59e95,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0001* UEFI:CD/DVD Drive BBS(129,,0x0)
Boot0002* UEFI:Removable Device BBS(130,,0x0)
Boot0003* UEFI:Network Device BBS(131,,0x0)
=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot disabled. (maybe sec-boot, Veuillez indiquer ce message à boot.repair@gmail.com)
=================== PARTITIONS & DISKS:
sda2 : sda, 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, .
sda1 : sda, 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, not-far, notbiosboot, /boot/efi.
sda : GPT, no-BIOS_boot, has-correctEFI, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
=================== parted -lm:
BYT;
/dev/sda:500GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABF0:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:500GB:500GB:ext4::;
=================== lsblk:
KNAME TYPE FSTYPE SIZE LABEL
loop0 loop squashfs 3,7M
loop1 loop squashfs 48,3M
loop2 loop squashfs 163,7M
loop3 loop squashfs 91,4M
loop4 loop squashfs 3,7M
loop5 loop squashfs 93,8M
loop6 loop squashfs 55M
loop7 loop squashfs 956K
loop8 loop squashfs 4,3M
loop9 loop squashfs 14,8M
loop10 loop squashfs 44,9M
loop11 loop squashfs 1,4G
loop12 loop squashfs 202,9M
loop13 loop squashfs 54,7M
loop14 loop squashfs 956K
loop15 loop squashfs 160,2M
loop16 loop squashfs 14,8M
loop17 loop squashfs 4,2M
sda disk 465,8G
sda1 part vfat 512M
sda2 part ext4 465,3G
KNAME ROTA RO RM STATE MOUNTPOINT
loop0 1 1 0 /snap/gnome-system-monitor/127
loop1 1 1 0 /snap/gtk-common-themes/1474
loop2 1 1 0 /snap/spotify/41
loop3 1 1 0 /snap/core/8689
loop4 1 1 0 /snap/gnome-system-monitor/135
loop5 1 1 0 /snap/core/8935
loop6 1 1 0 /snap/core18/1705
loop7 1 1 0 /snap/gnome-logs/93
loop8 1 1 0 /snap/gnome-calculator/704
loop9 1 1 0 /snap/gnome-characters/495
loop10 1 1 0 /snap/gtk-common-themes/1440
loop11 1 1 0 /snap/urban-terror/19
loop12 1 1 0 /snap/vlc/1397
loop13 1 1 0 /snap/core18/1668
loop14 1 1 0 /snap/gnome-logs/81
loop15 1 1 0 /snap/gnome-3-28-1804/116
loop16 1 1 0 /snap/gnome-characters/399
loop17 1 1 0 /snap/gnome-calculator/544
sda 1 0 0 running
sda1 1 0 0 /boot/efi
sda2 1 0 0 /
=================== 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=3991072k,nr_inodes=997768,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=803084k,mode=755)
/dev/sda2 on / type ext4 (rw,relatime,errors=remount-ro)
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,nsdelegate)
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/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
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/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
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/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/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1516)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
/var/lib/snapd/snaps/spotify_41.snap on /snap/spotify/41 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_135.snap on /snap/gnome-system-monitor/135 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_127.snap on /snap/gnome-system-monitor/127 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/vlc_1397.snap on /snap/vlc/1397 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_81.snap on /snap/gnome-logs/81 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_544.snap on /snap/gnome-calculator/544 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_399.snap on /snap/gnome-characters/399 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1440.snap on /snap/gtk-common-themes/1440 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1668.snap on /snap/core18/1668 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_116.snap on /snap/gnome-3-28-1804/116 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_93.snap on /snap/gnome-logs/93 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1705.snap on /snap/core18/1705 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_704.snap on /snap/gnome-calculator/704 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_495.snap on /snap/gnome-characters/495 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1474.snap on /snap/gtk-common-themes/1474 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_8689.snap on /snap/core/8689 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_8935.snap on /snap/core/8935 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/urban-terror_19.snap on /snap/urban-terror/19 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda1 on /boot/efi type vfat (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
tmpfs on /run/user/121 type tmpfs (rw,nosuid,nodev,relatime,size=803080k,mode=700,uid=121,gid=125)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=803080k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
=================== ls:
/sys/block/sda (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 size slaves stat subsystem trace uevent
/dev (filtered): acpi_thermal_rel 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 hidraw2 hidraw3 hpet hugepages hwrng i2c-0 i2c-1 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 iio:device0 initctl input kmsg kvm lightnvm log mapper mcelog media0 mei0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sg0 shm snapshot snd stderr stdin stdout tpm0 tpmrm0 udmabuf uhid uinput urandom userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 video1 zero zfs
ls /dev/mapper: control
=================== hexdump -n512 -C /dev/sda1
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 08 00 00 |........?.......|
00000020 00 00 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 d7 32 a8 19 4e 4f 20 4e 41 4d 45 20 20 |..).2..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 3.9G 0 3.9G 0% /dev
tmpfs tmpfs 785M 2.1M 783M 1% /run
/dev/sda2 ext4 457G 138G 297G 32% /
tmpfs tmpfs 3.9G 141M 3.7G 4% /dev/shm
tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/loop2 squashfs 164M 164M 0 100% /snap/spotify/41
/dev/loop4 squashfs 3.8M 3.8M 0 100% /snap/gnome-system-monitor/135
/dev/loop0 squashfs 3.8M 3.8M 0 100% /snap/gnome-system-monitor/127
/dev/loop12 squashfs 203M 203M 0 100% /snap/vlc/1397
/dev/loop14 squashfs 1.0M 1.0M 0 100% /snap/gnome-logs/81
/dev/loop17 squashfs 4.3M 4.3M 0 100% /snap/gnome-calculator/544
/dev/loop16 squashfs 15M 15M 0 100% /snap/gnome-characters/399
/dev/loop10 squashfs 45M 45M 0 100% /snap/gtk-common-themes/1440
/dev/loop13 squashfs 55M 55M 0 100% /snap/core18/1668
/dev/loop15 squashfs 161M 161M 0 100% /snap/gnome-3-28-1804/116
/dev/loop7 squashfs 1.0M 1.0M 0 100% /snap/gnome-logs/93
/dev/loop6 squashfs 55M 55M 0 100% /snap/core18/1705
/dev/loop8 squashfs 4.4M 4.4M 0 100% /snap/gnome-calculator/704
/dev/loop9 squashfs 15M 15M 0 100% /snap/gnome-characters/495
/dev/loop1 squashfs 49M 49M 0 100% /snap/gtk-common-themes/1474
/dev/loop3 squashfs 92M 92M 0 100% /snap/core/8689
/dev/loop5 squashfs 94M 94M 0 100% /snap/core/8935
/dev/loop11 squashfs 1.4G 1.4G 0 100% /snap/urban-terror/19
/dev/sda1 vfat 511M 6.1M 505M 2% /boot/efi
tmpfs tmpfs 785M 16K 785M 1% /run/user/121
tmpfs tmpfs 785M 1.9M 783M 1% /run/user/1000
=================== fdisk -l:
Disk /dev/loop0: 3.7 MiB, 3825664 bytes, 7472 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/loop1: 48.3 MiB, 50642944 bytes, 98912 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/loop2: 163.7 MiB, 171618304 bytes, 335192 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/loop3: 91.4 MiB, 95805440 bytes, 187120 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/loop4: 3.7 MiB, 3862528 bytes, 7544 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/loop5: 93.8 MiB, 98336768 bytes, 192064 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/loop6: 55 MiB, 57614336 bytes, 112528 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/loop7: 956 KiB, 978944 bytes, 1912 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: 465.8 GiB, 500107862016 bytes, 976773168 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: 633373FE-8719-435C-8F48-C189757C3993
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M EFI System
/dev/sda2 1050624 976771071 975720448 465.3G Linux filesystem
Disk /dev/loop8: 4.3 MiB, 4464640 bytes, 8720 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/loop9: 14.8 MiB, 15466496 bytes, 30208 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/loop10: 44.9 MiB, 47063040 bytes, 91920 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/loop11: 1.4 GiB, 1502109696 bytes, 2933808 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/loop12: 202.9 MiB, 212758528 bytes, 415544 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/loop13: 54.7 MiB, 57294848 bytes, 111904 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/loop14: 956 KiB, 978944 bytes, 1912 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/loop15: 160.2 MiB, 167931904 bytes, 327992 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/loop16: 14.8 MiB, 15462400 bytes, 30200 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/loop17: 4.2 MiB, 4403200 bytes, 8600 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
=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda2, using the following options: sda1/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s use-standard-efi-file
=================== Final advice in case of suggested repair
N'oubliez pas de régler votre BIOS pour qu'il amorce sur le fichier sda1/efi/.../grub*.efi !
=================== User settings
The settings chosen by the user will not act on the boot.
Ce que tu avais mentionné dans le post #1 : "passage de ubuntu 16.04 vers la 18.04" m'avait fait supposer qu'il s'agissait d'une mise à niveau de 16.04 vers 18.04 mais le le résultat de la commande "cat /etc/apt/sources.list | grep cdrom" me montre qu'il ne s'agit pas de ça. Désolé mais je n'ai pas d'idée à te proposer.