je colle ci-dessous le contenu du Boot-info dont tu as donné le lien (
https://paste.ubuntu.com/p/9qHHbFkWBh ) dans le post #4 :
boot-info-4ppa125 [20201230_1609]
============================== 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/mmx64.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 20.04.1 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
sdb: ___________________________________________________________________________
File system: iso9660
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: /mnt/BootInfo/FD/sdb: /dev/sdb déjà monté ou point de montage actif.
================================ 1 OS detected =================================
OS#1: Ubuntu 20.04.1 LTS on sda2
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
Live-session OS is Ubuntu 64-bit (Ubuntu 20.04.1 LTS, focal, x86_64)
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot enabled.
efibootmgr -v
BootCurrent: 0001
Timeout: 2 seconds
BootOrder: 2001,2002,2003
Boot0000* Unknown Device: HD(1,GPT,41feb653-e537-4932-a0dd-d43f5c3c50a8,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)RC
Boot0001* USB HDD: VendorCoProductCode PciRoot(0x0)/Pci(0x14,0x0)/USB(2,0)/USB(1,0)/HD(1,MBR,0x56f48570,0x4c8f30,0x1f00)RC
Boot2001* EFI USB Device RC
Boot2002* EFI DVD/CDROM RC
Boot2003* EFI Network RC
2895d47544fd587b26c7e29be1295c27 sda1/BOOT/fbx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda1/BOOT/mmx64.efi
8ed07d5ee4e5e1534bcf64037b7589ff sda1/ubuntu/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda1/ubuntu/mmx64.efi
78415fb8fb9b909f8029858113f1335f sda1/ubuntu/shimx64.efi
78415fb8fb9b909f8029858113f1335f sda1/BOOT/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): _________________________________________________________
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sda2 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, farbios
Partitions info (2/3): _________________________________________________________
sda1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda2 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
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, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
fdisk -l (filtered): ___________________________________________________________
Disk sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk identifier: 769B76AD-D03B-4F07-994B-D9B95E4AC83C
Start End Sectors Size Type
sda1 2048 1050623 1048576 512M EFI System
sda2 1050624 976771071 975720448 465.3G Linux filesystem
Disk sdb: 7.51 GiB, 8053063680 bytes, 15728640 sectors
Disk identifier: 0x56f48570
Boot Start End Sectors Size Id Type
sdb1 * 0 5439487 5439488 2.6G 0 Empty
sdb2 5017392 5025327 7936 3.9M ef EFI (FAT-12/16/32)
sdb3 5439488 15728639 10289152 4.9G 83 Linux
parted -lm (filtered): _________________________________________________________
sda:500GB:scsi:512:4096:gpt:ATA WDC WD5000LPVX-2:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:500GB:500GB:ext4::;
sdb:8053MB:scsi:512:512:unknown:VendorCo ProductCode:;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 vfat D76E-F896 41feb653-e537-4932-a0dd-d43f5c3c50a8 EFI System Partition
└─sda2 ext4 be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a f66ae8a9-24db-4710-b872-5024861cd835
sdb iso9660 2020-07-31-16-51-12-00 Ubuntu 20.04.1 LTS amd64
├─sdb1 iso9660 2020-07-31-16-51-12-00 56f48570-01 Ubuntu 20.04.1 LTS amd64
├─sdb2 vfat C26E-047E 56f48570-02
└─sdb3 ext4 8de08542-2cff-4718-a2ec-b749f3c18525 56f48570-03 writable
df (filtered): _________________________________________________________________
Avail Use% Mounted on
disk/by-label/writable[/install-logs-2020-12-30.0/crash] 4.5G 1% /var/crash
disk/by-label/writable[/install-logs-2020-12-30.0/log] 4.5G 1% /var/log
sda1 503.2M 2% /mnt/boot-sav/sda1
sda2 425.8G 2% /mnt/boot-sav/sda2
sdb1 0 100% /cdrom
Mount options: __________________________________________________________________
disk/by-label/writable[/install-logs-2020-12-30.0/crash] rw,relatime
disk/by-label/writable[/install-logs-2020-12-30.0/log] rw,relatime
sda1 rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
sda2 rw,relatime
sdb1 ro,noatime,nojoliet,check=s,map=n,blocksize=2048
===================== sda1/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda2/boot/grub/grub.cfg (filtered) ======================
Ubuntu be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a
Ubuntu, avec Linux 5.4.0-58-generic be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a
Ubuntu, avec Linux 5.4.0-42-generic be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a
### 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=be5c0dcf-7c1a-4e66-b0a1-a6e33e3a529a / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
UUID=D76E-F896 /boot/efi vfat umask=0077 0 1
/swapfile 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)
208,626888275 = 224,011415552 boot/grub/grub.cfg 2
139,566543579 = 149,858435072 boot/vmlinuz 1
5,300899506 = 5,691797504 boot/vmlinuz-5.4.0-42-generic 1
139,566543579 = 149,858435072 boot/vmlinuz-5.4.0-58-generic 1
5,300899506 = 5,691797504 boot/vmlinuz.old 1
139,972919464 = 150,294777856 boot/initrd.img 1
139,925056458 = 150,243385344 boot/initrd.img-5.4.0-42-generic 2
139,972919464 = 150,294777856 boot/initrd.img-5.4.0-58-generic 1
139,925056458 = 150,243385344 boot/initrd.img.old 2
===================== sda2: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 17622 nov. 12 23:15 10_linux
-rwxr-xr-x 1 root root 42359 nov. 12 23:15 10_linux_zfs
-rwxr-xr-x 1 root root 12894 juil. 31 00:34 20_linux_xen
-rwxr-xr-x 1 root root 12059 juil. 31 00:34 30_os-prober
-rwxr-xr-x 1 root root 1424 juil. 31 00:34 30_uefi-firmware
-rwxr-xr-x 1 root root 214 juil. 31 00:34 40_custom
-rwxr-xr-x 1 root root 216 juil. 31 00:34 41_custom
======================== Unknown MBRs/Boot Sectors/etc =========================
Unknown BootLoader on sdb
00000000 45 52 08 00 00 00 90 90 00 00 00 00 00 00 00 00 |ER..............|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 33 ed fa 8e d5 bc 00 7c fb fc 66 31 db 66 31 c9 |3......|..f1.f1.|
00000030 66 53 66 51 06 57 8e dd 8e c5 52 be 00 7c bf 00 |fSfQ.W....R..|..|
00000040 06 b9 00 01 f3 a5 ea 4b 06 00 00 52 b4 41 bb aa |.......K...R.A..|
00000050 55 31 c9 30 f6 f9 cd 13 72 16 81 fb 55 aa 75 10 |U1.0....r...U.u.|
00000060 83 e1 01 74 0b 66 c7 06 f3 06 b4 42 eb 15 eb 02 |...t.f.....B....|
00000070 31 c9 5a 51 b4 08 cd 13 5b 0f b6 c6 40 50 83 e1 |1.ZQ....[...@P..|
00000080 3f 51 f7 e1 53 52 50 bb 00 7c b9 04 00 66 a1 b0 |?Q..SRP..|...f..|
00000090 07 e8 44 00 0f 82 80 00 66 40 80 c7 02 e2 f2 66 |..D.....f@.....f|
000000a0 81 3e 40 7c fb c0 78 70 75 09 fa bc ec 7b ea 44 |.>@|..xpu....{.D|
000000b0 7c 00 00 e8 83 00 69 73 6f 6c 69 6e 75 78 2e 62 ||.....isolinux.b|
000000c0 69 6e 20 6d 69 73 73 69 6e 67 20 6f 72 20 63 6f |in missing or co|
000000d0 72 72 75 70 74 2e 0d 0a 66 60 66 31 d2 66 03 06 |rrupt...f`f1.f..|
000000e0 f8 7b 66 13 16 fc 7b 66 52 66 50 06 53 6a 01 6a |.{f...{fRfP.Sj.j|
000000f0 10 89 e6 66 f7 36 e8 7b c0 e4 06 88 e1 88 c5 92 |...f.6.{........|
00000100 f6 36 ee 7b 88 c6 08 e1 41 b8 01 02 8a 16 f2 7b |.6.{....A......{|
00000110 cd 13 8d 64 10 66 61 c3 e8 1e 00 4f 70 65 72 61 |...d.fa....Opera|
00000120 74 69 6e 67 20 73 79 73 74 65 6d 20 6c 6f 61 64 |ting system load|
00000130 20 65 72 72 6f 72 2e 0d 0a 5e ac b4 0e 8a 3e 62 | error...^....>b|
00000140 04 b3 07 cd 10 3c 0a 75 f1 cd 18 f4 eb fd 00 00 |.....<.u........|
00000150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001b0 f4 8d 05 00 00 00 00 00 70 85 f4 56 00 00 80 00 |........p..V....|
000001c0 01 00 00 a5 e0 ff 00 00 00 00 00 00 53 00 00 fe |............S...|
000001d0 ff ff ef fe ff ff 30 8f 4c 00 00 1f 00 00 00 97 |......0.L.......|
000001e0 46 52 83 0f fc d3 00 00 53 00 00 00 9d 00 00 00 |FR......S.......|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200
=============================== StdErr Messages ================================
File descriptor 63 (pipe:[181071]) leaked on lvs invocation. Parent PID 10947: /bin/bash
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: ______________________________________
Please do not forget to make your UEFI firmware boot on the Ubuntu 20.04.1 LTS entry (sda1/efi/****/shim****.efi (**** will be updated in the final message) file) !