je me permet de rajouter le boot-info (même si je suis pas sûr que ça aide)
boot-info-4ppa125 [20201027_1335]
============================== 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/boot/fbx64.efi /efi/boot/grubx64.efi
/efi/boot/mmx64.efi /efi/boot/MokManager.efi
/efi/boot/shimx64.efi /efi/ubuntu/grubx64.efi
/efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi
/efi/boot/grub.cfg /efi/ubuntu/grub.cfg
sda2: __________________________________________________________________________
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
sda3: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
================================ 1 OS detected =================================
OS#1: L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession on sda2
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.4.0-52-generic root=UUID=293bedba-fd5b-4ae5-a353-fa2bc671fb2f ro quiet splash vt.handoff=7
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot disabled.
efibootmgr -v
BootCurrent: 0000
Timeout: 3 seconds
BootOrder: 0000,0007,2003,2001
Boot0000* ubuntu HD(1,GPT,17cf7dee-820f-4418-a0cd-bf32e3775de2,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0003* UEFI: IP6 Realtek PCIe FE Family Controller PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(0c54a5337505,0)/IPv6([::]:<->[::]:,0,0)..BO
Boot0004* UEFI: IP4 Realtek PCIe FE Family Controller PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(0c54a5337505,0)/IPv4(0.0.0.00.0.0.0,0,0)..BO
Boot0006 UEFI: Built-in EFI Shell VenMedia(5023b95c-db26-429b-a648-bd47664c8012)..BO
Boot2001* EFI USB Device RC
Boot2003* EFI Network RC
2895d47544fd587b26c7e29be1295c27 sda1/boot/fbx64.efi
ebfcfc491c9d6d0b2abdd1fd9d17e7d8 sda1/boot/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda1/boot/mmx64.efi
01256bc72578b55a13a802849c425fd1 sda1/boot/MokManager.efi
7095619324a9fb786422d7427c056405 sda1/boot/shimx64.efi
d8b4b9ae3018b1f4612611be7f42507a sda1/ubuntu/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda1/ubuntu/mmx64.efi
78415fb8fb9b909f8029858113f1335f sda1/ubuntu/shimx64.efi
78415fb8fb9b909f8029858113f1335f sda1/boot/BOOTx64.efi
7095619324a9fb786422d7427c056405 sda1/ubuntu/BOOTx64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda2 : is-os, 64, apt-get, signed grub-efi , grub2, grub-install, grubenv-ng, update-grub, farbios
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
Partitions info (2/3): _________________________________________________________
sda2 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda2 : 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
fdisk -l (filtered): ___________________________________________________________
Disk sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk identifier: E2075340-623D-4C28-8A23-79CFB786BEC5
Start End Sectors Size Type
sda1 2048 1050623 1048576 512M EFI System
sda2 1050624 968624127 967573504 461.4G Linux filesystem
sda3 968624128 976771071 8146944 3.9G Linux swap
parted -lm (filtered): _________________________________________________________
sda:500GB:scsi:512:512:gpt:ATA TOSHIBA MQ01ABF0:;
1:1049kB:538MB:537MB:fat32::boot, esp;
2:538MB:496GB:495GB:ext4::;
3:496GB:500GB:4171MB:linux-swap(v1)::swap;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 vfat 88A7-41B0 17cf7dee-820f-4418-a0cd-bf32e3775de2
├─sda2 ext4 293bedba-fd5b-4ae5-a353-fa2bc671fb2f 1fcca9f8-4620-4bba-9791-3109ba1db1a2
└─sda3 swap 66b5d68d-1a36-4d1e-a60d-aa261b166420 18e6dc81-4b94-4068-8fa8-618447f1f53a
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda2 186.8G 54% /
Mount options: __________________________________________________________________
sda2 rw,relatime,errors=remount-ro
====================== sda1/efi/boot/grub.cfg (filtered) =======================
search.fs_uuid 36744f9a-7233-4abb-ba8e-03869c74e413 root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
===================== sda1/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid 293bedba-fd5b-4ae5-a353-fa2bc671fb2f root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda2/boot/grub/grub.cfg (filtered) ======================
Ubuntu 293bedba-fd5b-4ae5-a353-fa2bc671fb2f
Ubuntu, avec Linux 5.4.0-52-generic 293bedba-fd5b-4ae5-a353-fa2bc671fb2f
Ubuntu, avec Linux 5.4.0-51-generic 293bedba-fd5b-4ae5-a353-fa2bc671fb2f
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
========================== sda2/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during installation
UUID=293bedba-fd5b-4ae5-a353-fa2bc671fb2f / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=88A7-41B0 /boot/efi vfat umask=0077 0 1
# swap was on /dev/sda3 during installation
UUID=66b5d68d-1a36-4d1e-a60d-aa261b166420 none swap sw 0 0
======================= sda2/etc/default/grub (filtered) =======================
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=""
==================== sda2: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
432.801761627 = 464.717352960 boot/grub/grub.cfg 2
41.464977264 = 44.522680320 boot/vmlinuz 2
39.988414764 = 42.937233408 boot/vmlinuz-5.4.0-51-generic 1
41.464977264 = 44.522680320 boot/vmlinuz-5.4.0-52-generic 2
39.988414764 = 42.937233408 boot/vmlinuz.old 1
47.781501770 = 51.304996864 boot/initrd.img 7
41.008064270 = 44.032073728 boot/initrd.img-5.4.0-51-generic 7
47.781501770 = 51.304996864 boot/initrd.img-5.4.0-52-generic 7
41.008064270 = 44.032073728 boot/initrd.img.old 7
===================== sda2: 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 sept. 8 12:24 20_linux_xen
-rwxr-xr-x 1 root root 12059 août 24 10:45 30_os-prober
-rwxr-xr-x 1 root root 1424 sept. 8 12:24 30_uefi-firmware
-rwxr-xr-x 1 root root 214 avril 16 2016 40_custom
-rwxr-xr-x 1 root root 216 avril 16 2016 41_custom
========= Devices which don't seem to have a corresponding hard drive ==========
sdb
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would purge (in order to sign-grub) and 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: ______________________________________
Please do not forget to make your UEFI firmware boot on the L'OS actuellement utilisé - Ubuntu 20.04.1 LTS CurrentSession entry (sda1/efi/****/shim****.efi (**** will be updated in the final message) file) !