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dual boot ?

dadi0

Bonjour,
J'ai dû rater quelque chose en installant Ubuntu sur Windows10, Ubuntu démarre correctement mais sans me laisser choisir le système d'exploitation.
Pouvez-vous me dire si mon Windows est récupérable ?
Merci !
Ci-dessous le rapport boot-info :
https://paste.ubuntu.com/p/6hJZ8mN6b7/

----------------------------------------------------
Merci à tous ceux qui m'ont répondu.
La solution avec Refind me convient bien.

geole

Bonjour
Le boot-info montre que windows est intact et que le démarrage de ubuntu aurait du te proposer une grille de choix permettant de choisir aussi windows, Cela est visible dans cet extrait

====================== sda8/boot/grub/grub.cfg (filtered) ======================
Ubuntu   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Ubuntu, avec Linux 5.4.0-52-generic   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Ubuntu, avec Linux 5.4.0-42-generic   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Windows Boot Manager (sur sda2)   osprober-efi-426D-EA1A
### END /etc/grub.d/30_os-prober ###

Probablement un problème d'affichage de la grille que je ne sais pas expliquer
Peux-tu donner le retour de cette commande

cat /boot/grub/grub.cfg

xubu1957

Bonjour,

Collage du boot-info :

boot-info-4ppa125                                              [20201026_0946]

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

 => No boot loader is installed in the MBR of /dev/sda.

sda1: __________________________________________________________________________

    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:        

sda2: __________________________________________________________________________

    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/Boot/fbx64.efi 
                       /efi/Boot/mmx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    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/bootmgr.efi 
                       /efi/Microsoft/Boot/LrsBootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi /bootmgr /boot/bcd

sda4: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda5: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows 10
    Boot files:        /bootmgr /Boot/BCD /Windows/System32/winload.exe

sda6: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 2000/XP: NTFS
    Boot sector info:  According to the info in the boot sector, sda6 starts 
                       at sector 0. But according to the info from fdisk, 
                       sda6 starts at sector 824092672.
    Operating System:  
    Boot files:        

sda7: __________________________________________________________________________

    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:        

sda8: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 20.04.1 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab /etc/default/grub


================================ 2 OS detected =================================

OS#1:   L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession on sda8
OS#2:   Windows 10 on sda5

============================ Architecture/Host Info ============================

CPU architecture: 64-bit
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.4.0-52-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro quiet splash vt.handoff=7


===================================== UEFI =====================================

BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot enabled.

efibootmgr -v
BootCurrent: 0001
Timeout: 10 seconds
BootOrder: 0001,0000,0013,0014,0015,0016,0017,001B
Boot0000* Windows Boot Manager	HD(2,GPT,a60b6d7a-8b0b-401c-a511-f008b41bd580,0x1f4800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.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.}....................
Boot0001* ubuntu	HD(2,GPT,a60b6d7a-8b0b-401c-a511-f008b41bd580,0x1f4800,0x82000)/File(\EFI\ubuntu\shimx64.efi)
Boot0010  Setup	FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011  Boot Menu	FvFile(86488440-41bb-42c7-93ac-450fbf7766bf)
Boot0012  Diagnostic Splash	FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013* USB FDD:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0014* ATA HDD: WDC WD10SPCX-24HWST1                    	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(0,0,0)..bYVD.A...O.*..
Boot0015* USB HDD: Generic USB HDD	PciRoot(0x0)/Pci(0x14,0x0)/USB(4,0)3.!..3.G..A.....
Boot0016* USB CD:	VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0017* PCI LAN: EFI Network (IPv4)	PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(54ee755da837,0)/IPv4(0.0.0.00.0.0.0,0,0)x.J.+*.N.....=8.
Boot0018* PCI LAN: EFI Network (IPv6)	PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(000000000000,0)/IPv6([::]:<->[::]:,0,0)x.J.+*.N.....=8.
Boot001A* Lenovo Recovery System	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(0,0,0)/HD(3,GPT,ac573223-2403-404f-8f8b-c89f070ab498,0x276800,0x1f4000)/File(\EFI\Microsoft\Boot\lrsBootMgr.efi)
Boot001B* PCI LAN: EFI Network (IPv6)	PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(54ee755da837,0)/IPv6([::]:<->[::]:,0,0)x.J.+*.N.....=8.

78415fb8fb9b909f8029858113f1335f   sda2/Boot/bootx64.efi
2895d47544fd587b26c7e29be1295c27   sda2/Boot/fbx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84   sda2/Boot/mmx64.efi
114bd85eec32e3162958ea034020821d   sda2/ubuntu/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84   sda2/ubuntu/mmx64.efi
78415fb8fb9b909f8029858113f1335f   sda2/ubuntu/shimx64.efi
cb8e4284804d56f058c0e1cf111eeedd   sda2/Microsoft/Boot/bootmgfw.efi
3df357ffd0654bb80f2a575485e6e0cc   sda2/Microsoft/Boot/bootmgr.efi
ff6d345785671fbcea9561a3cbc47702   sda3/Boot/bootx64.efi
bb971a4a02185961543c7903473a6680   sda3/Microsoft/Boot/bootmgr.efi
bad97e7203aec2bd026403a7f70688b9   sda3/Microsoft/Boot/LrsBootmgr.efi


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

Disks info: ____________________________________________________________________

sda	: is-GPT,	no-BIOSboot,	mayhavESP, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes

Partitions info (1/3): _________________________________________________________

sda8	: is-os,	64, apt-get,	signed grub-pc grub-efi ,	grub2,	grub-install,	grubenv-ok,	update-grub,	farbios
sda1	: no-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	not-far
sda2	: no-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	not-far
sda3	: no-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	not-far
sda5	: is-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	farbios
sda6	: no-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	farbios
sda7	: no-os,	32, nopakmgr,	no-docgrub,	nogrub,	nogrubinstall,	no-grubenv,	noupdategrub,	farbios

Partitions info (2/3): _________________________________________________________

sda8	: isnotESP,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot
sda1	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot
sda2	: maybeESP,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot
sda3	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	bootmgr,	is-winboot
sda5	: isnotESP,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	is-winboot
sda6	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot
sda7	: isnotESP,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot

Partitions info (3/3): _________________________________________________________

sda8	: not-sepboot,	with-boot,	fstab-without-boot,	not-sep-usr,	with--usr,	fstab-without-usr,	std-grub.d,	sda
sda1	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda
sda2	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda
sda3	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda
sda5	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda
sda6	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda
sda7	: not-sepboot,	no-boot,	part-has-no-fstab,	not-sep-usr,	no---usr,	part-has-no-fstab,	std-grub.d,	sda

fdisk -l (filtered): ___________________________________________________________

Disk sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: 2A19BA38-FC20-4A16-8290-3243D56BF9EE
           Start        End    Sectors   Size Type
sda1        2048    2050047    2048000  1000M Windows recovery environment
sda2     2050048    2582527     532480   260M EFI System
sda3     2582528    4630527    2048000  1000M Windows recovery environment
sda4     4630528    4892671     262144   128M Microsoft reserved
sda5     4892672  721692671  716800000 341.8G Microsoft basic data
sda6   824092672 1927618559 1103525888 526.2G Microsoft basic data
sda7  1927618560 1953523711   25905152  12.4G Windows recovery environment
sda8   721692672  824092671  102400000  48.8G Linux filesystem
Partition table entries are not in disk order.

parted -lm (filtered): _________________________________________________________

sda:1000GB:scsi:512:4096:gpt:ATA WDC WD10SPCX-24H:;
1:1049kB:1050MB:1049MB:ntfs:Ba:hidden, diag;
2:1050MB:1322MB:273MB:fat32:EF:boot, hidden, esp;
3:1322MB:2371MB:1049MB:fat32:Ba:hidden, diag;
4:2371MB:2505MB:134MB::Mi:msftres;
5:2505MB:370GB:367GB:ntfs::msftdata;
8:370GB:422GB:52.4GB:ext4::;
6:422GB:987GB:565GB:ntfs::msftdata;
7:987GB:1000GB:13.3GB:ntfs:Ba:hidden, diag;

blkid (filtered): ______________________________________________________________

NAME   FSTYPE   UUID                                 PARTUUID                             LABEL       PARTLABEL
sda                                                                                                   
├─sda1 ntfs     7A5C6A885C6A3ECF                     ca6cc1c9-4a60-4032-94f0-33cf47ee6ef6 WINRE_DRV   Ba
├─sda2 vfat     426D-EA1A                            a60b6d7a-8b0b-401c-a511-f008b41bd580 SYSTEM_DRV  EF
├─sda3 vfat     4674-9C52                            ac573223-2403-404f-8f8b-c89f070ab498 LRS_ESP     Ba
├─sda4                                               065d69b5-9bbe-47e0-aff7-c60c0a7bf3fc             Mi
├─sda5 ntfs     CE187A9F187A866D                     f5623482-69c1-47f7-a75f-ac44f551d08d Windows8_OS 
├─sda6 ntfs     01D11B15398DC2F0                     594b56d2-0c19-2dcd-d671-0d5eade7f9f5 Utilisation 
├─sda7 ntfs     60047F84047F5BCA                     cdfbc28f-50d8-48be-ad74-f8a6cfe367f0 PBR_DRV     Ba
└─sda8 ext4     ed8d53e0-e701-42dc-9edf-fcbc2908f224 f48868cb-a95a-4a3e-9326-aff51b7f7d5b             

df (filtered): _________________________________________________________________

                   Avail Use% Mounted on
sda1              711.7M  29% /mnt/boot-sav/sda1
sda3              472.8M  53% /mnt/boot-sav/sda3
sda5                315G   8% /mnt/boot-sav/sda5
sda6              373.2G  29% /mnt/boot-sav/sda6
sda7                3.3G  73% /mnt/boot-sav/sda7
sda8               37.4G  17% /

Mount options: __________________________________________________________________

sda1              rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda3              rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
sda5              rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda6              rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda7              rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda8              rw,relatime,errors=remount-ro

===================== sda2/efi/ubuntu/grub.cfg (filtered) ======================

search.fs_uuid ed8d53e0-e701-42dc-9edf-fcbc2908f224 root hd0,gpt8 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg

====================== sda8/boot/grub/grub.cfg (filtered) ======================

Ubuntu   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Ubuntu, avec Linux 5.4.0-52-generic   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Ubuntu, avec Linux 5.4.0-42-generic   ed8d53e0-e701-42dc-9edf-fcbc2908f224
Windows Boot Manager (sur sda2)   osprober-efi-426D-EA1A
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings   uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###

========================== sda8/etc/fstab (filtered) ===========================

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda8 during installation
UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
UUID=426D-EA1A  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0

======================= sda8/etc/default/grub (filtered) =======================

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=""

==================== sda8: Location of files loaded by Grub ====================

           GiB - GB             File                                 Fragment(s)
 380,366531372 = 408,415453184  boot/grub/grub.cfg                             2
 363,406383514 = 390,204633088  boot/vmlinuz                                   1
 348,890743256 = 374,618583040  boot/vmlinuz-5.4.0-42-generic                  1
 363,406383514 = 390,204633088  boot/vmlinuz-5.4.0-52-generic                  1
 348,890743256 = 374,618583040  boot/vmlinuz.old                               1
 348,214233398 = 373,892186112  boot/initrd.img                                2
 348,170906067 = 373,845663744  boot/initrd.img-5.4.0-42-generic               4
 348,214233398 = 373,892186112  boot/initrd.img-5.4.0-52-generic               2
 348,170906067 = 373,845663744  boot/initrd.img.old                            4

===================== sda8: ls -l /etc/grub.d/ (filtered) ======================

-rwxr-xr-x 1 root root 17622 sept.  8 12:24 10_linux
-rwxr-xr-x 1 root root 42359 sept.  8 12:24 10_linux_zfs
-rwxr-xr-x 1 root root 12894 juil. 31 02:34 20_linux_xen
-rwxr-xr-x 1 root root 12059 juil. 31 02:34 30_os-prober
-rwxr-xr-x 1 root root  1424 juil. 31 02:34 30_uefi-firmware
-rwxr-xr-x 1 root root   214 juil. 31 02:34 40_custom
-rwxr-xr-x 1 root root   216 juil. 31 02:34 41_custom


Suggested repair: ______________________________________________________________

The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of
sda8,
using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s  use-standard-efi-file    

Blockers in case of suggested repair: __________________________________________

 Please create a ESP partition (FAT32, 100MB~250MB, start of the disk, boot flag). This can be performed via tools such as Gparted. Then try again.

Confirmation request before suggested repair: __________________________________

The boot of your PC is in Secure mode. You may want to retry after changing it to non-Secure mode.
Are you sure you want to continue anyway?

Final advice in case of suggested repair: ______________________________________


Please do not forget to make your UEFI firmware boot on the L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession entry (sda2/efi/****/shim****.efi (**** will be updated in the final message) file) !
If your computer reboots directly into Windows, try to change the boot order in your UEFI firmware.

If your UEFI firmware 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\****\shim****.efi (**** will be updated in the final message)

FrancisFDZ

Bonjour,
grub reconnait-il la présence de windows ?
Que répond

sudo os-prober

geole

Ce retour est basé sur la commande os-prober

================================ 2 OS detected =================================
OS#1:   L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession on sda8
OS#2:   Windows 10 on sda5

De plus, le fichier /boor/grub/grub.cfg contient bien le menu entry de windows

ikewdu

Salut,

Essaie ce que j'ai proposé ici : https://forum.ubuntu-fr.org/viewtopic.php?pid=22356953#p22356953

On saura au moins si ça règle ce problème qui devient récurrent.

dadi0

Merci pour vos réponses !
Pour geole :

daniel@daniel-Lenovo-Yoga-500-14IBD:~$ cat /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 $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${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 initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt8'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
else
  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
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=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
### 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=7
	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-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
	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,gpt8'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
	else
	  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
	fi
	linux	/boot/vmlinuz-5.4.0-52-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-52-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
	menuentry 'Ubuntu, avec Linux 5.4.0-52-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-52-generic-advanced-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
		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,gpt8'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
		else
		  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
		fi
		echo	'Chargement de Linux 5.4.0-52-generic…'
		linux	/boot/vmlinuz-5.4.0-52-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-5.4.0-52-generic
	}
	menuentry 'Ubuntu, avec Linux 5.4.0-52-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-52-generic-recovery-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt8'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
		else
		  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
		fi
		echo	'Chargement de Linux 5.4.0-52-generic…'
		linux	/boot/vmlinuz-5.4.0-52-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro recovery nomodeset dis_ucode_ldr 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-5.4.0-52-generic
	}
	menuentry 'Ubuntu, avec Linux 5.4.0-42-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-42-generic-advanced-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
		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,gpt8'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
		else
		  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
		fi
		echo	'Chargement de Linux 5.4.0-42-generic…'
		linux	/boot/vmlinuz-5.4.0-42-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-5.4.0-42-generic
	}
	menuentry 'Ubuntu, avec Linux 5.4.0-42-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-42-generic-recovery-ed8d53e0-e701-42dc-9edf-fcbc2908f224' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt8'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8  ed8d53e0-e701-42dc-9edf-fcbc2908f224
		else
		  search --no-floppy --fs-uuid --set=root ed8d53e0-e701-42dc-9edf-fcbc2908f224
		fi
		echo	'Chargement de Linux 5.4.0-42-generic…'
		linux	/boot/vmlinuz-5.4.0-42-generic root=UUID=ed8d53e0-e701-42dc-9edf-fcbc2908f224 ro recovery nomodeset dis_ucode_ldr 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-5.4.0-42-generic
	}
}

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

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### 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 (sur /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-426D-EA1A' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$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  426D-EA1A
	else
	  search --no-floppy --fs-uuid --set=root 426D-EA1A
	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 'UEFI Firmware Settings' $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 ###

dadi0

pour FrancisFDZ :
$ sudo os-prober

/dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi

xubu1957

Bonjour,

Pour ajouter toi-même les balises code à tes précédents messages #7 et #8 :

Cliquer sur le lien « Modifier » en bas à droite du message
Sélectionner le texte
Cliquer sur le <> de l'éditeur de message

Comme indiqué dans le premier message du tutoriel Retour utilisable de commande.

Le #8 :

$ sudo os-prober

/dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi

dadi0

ikewdu a écritSalut,

Essaie ce que j'ai proposé ici : https://forum.ubuntu-fr.org/viewtopic.php?pid=22356953#p22356953

On saura au moins si ça règle ce problème qui devient récurrent.

Merci pour la proposition. J'ai essayé de supprimer le TIMEOUT comme indiqué, mais pas d'amélioration.
A tout hasard, un nouveau rapport boot-info :
https://paste.ubuntu.com/p/fgRvNQKqJm/

geole

Bonjour
Je risque de ne pas trouver la raison du non-affichage du dual boot. car tout me semble correct

..........
	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 ###

Si les autres intervenants ne voient pas trop le problème, je te propose de ne plus utiliser le grub pour booter mais un autre lanceur d O.S. On verra alors s'il sait afficher, s'il n'affiche pas non plus...... on pourra l'éliminer et revenir à la situation ancienne.
Donc si tu as besoin de windows maintenant:

sudo apt install refind

Puis dans le bios, tu déactives le secure boot. (mais cela pourras se rétablir plus tard)
car

===================================== UEFI =====================================

BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot enabled.

efibootmgr -v
BootCurrent: 0001
Timeout: 10 seconds
BootOrder: 0001,0000,0013,0014,0015,0016,0017,001B
Boot0000* Windows Boot Manager	HD(2,GPT,a60b6d7a-8b0b-401c-a511-f008b41bd580,0x1f4800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.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.}....................
Boot0001* ubuntu	HD(2,GPT,a60b6d7a-8b0b-401c-a511-f008b41bd580,0x1f4800,0x82000)/File(\EFI\ubuntu\shimx64.efi)

puis reboot

ikewdu

Salut,

Idem. Pas d'idée de solution avec GRUB. Refind me semble une bonne solution.

lucmars

Concernant grub depuis la 200400 on a meme vu le probleme inverse : mono-boot mais grub s'affichant malgré la valeur "hidden" en /default/grub

ikewdu

Re,

Perso, je tenterais quelque chose de provisoire dans GRUB.cfg :

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

J'essaierais de remplacer hidden par menu (sans faire un sudo update-grub) afin de voir si le problème vient de cette ligne. Une chose est certaine : GRUB a changé sa manière de gérer l'affichage du menu et le fichier /etc/default/GRUB semble ne plus servir à grand chose.

ikewdu

Salut,

Résolu ? Comment ?

dadi0

La solution proposée par geole (#11) me convient bien. Avec refind je peux selectionner le boot sans problème.