Re,
On voit bien l'ajout de l'entrée "unbutu1" en Nvram qui a résolu ton problème, et montrant que la piste de malbo était la bonne. En revanche, je m'explique mal pourquoi l'entrée "ubuntu" n'a pas fonctionné une fois le boot-secure désactivé. Sans doute une des bizarreries Acer évoquées dans la réponse 8.
============================== 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
/efi/OEM/Boot/bootmgfw.efi /efi/OEM/Boot/bootmgr.efi
/efi/OEM/Boot/memtest.efi
sda3: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
sda4: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 8 or 10
Boot files: /Windows/System32/winload.exe
sda5: __________________________________________________________________________
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:
sda6: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 20.10
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
================================ 2 OS detected =================================
OS#1: L'OS actuellement utilisé - Ubuntu 20.10 CurrentSession on sda6
OS#2: Windows 8 or 10 on sda4
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.8.0-41-generic root=UUID=bba9e0ae-e73e-4900-9217-f10402d28acf 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: 0002
Timeout: 2 seconds
BootOrder: 0002,0003,0000,2001,2002,2003
Boot0000* Windows Boot Manager HD(2,GPT,6df1b028-a7bd-4e8f-9b03-3bcc33415c95,0x12c800,0x96000)/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* Unknown Device: HD(2,GPT,6df1b028-a7bd-4e8f-9b03-3bcc33415c95,0x12c800,0x96000)/File(\EFI\ubuntu\shimx64.efi)RC
Boot0002* unbutu1 PciRoot(0x0)/Pci(0x13,0x0)/Sata(0,0,0)/HD(2,GPT,6df1b028-a7bd-4e8f-9b03-3bcc33415c95,0x12c800,0x96000)/File(\EFI\ubuntu\shimx64.efi)A01 ..
Boot0003* ubuntu PciRoot(0x0)/Pci(0x13,0x0)/Sata(0,0,0)/HD(2,GPT,6df1b028-a7bd-4e8f-9b03-3bcc33415c95,0x12c800,0x96000)/File(\EFI\ubuntu\grubx64.efi)A01 ..
Boot2001* EFI USB Device RC
Boot2002* EFI DVD/CDROM RC
Boot2003* EFI Network RC
78415fb8fb9b909f8029858113f1335f sda2/Boot/bootx64.efi
2895d47544fd587b26c7e29be1295c27 sda2/Boot/fbx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda2/Boot/mmx64.efi
92fb77760971a57d878fe09aaed99a96 sda2/ubuntu/grubx64.efi
dc3c47be2f78a78e5e57d097ae6c5c84 sda2/ubuntu/mmx64.efi
78415fb8fb9b909f8029858113f1335f sda2/ubuntu/shimx64.efi
86f1aa31bc5068d606cc8045841c8586 sda2/Microsoft/Boot/bootmgfw.efi
d26c41a3da47896638bfccd94bd76b4a sda2/Microsoft/Boot/bootmgr.efi
86f6426a9b47dc73eb8c8bafbb46799f sda2/OEM/Boot/bootmgfw.efi
3ce8c3424654411d11779676b52c7cba sda2/OEM/Boot/bootmgr.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): _________________________________________________________
sda6 : 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
sda4 : is-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
sda5 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
Partitions info (2/3): _________________________________________________________
sda6 : 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 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda4 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinboot
sda5 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda6 : 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
sda4 : 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
fdisk -l (filtered): ___________________________________________________________
Disk sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors
Disk identifier: CD7EB1F6-BC1E-405E-A06D-D1FFC6388441
Start End Sectors Size Type
sda1 2048 1230847 1228800 600M Windows recovery environment
sda2 1230848 1845247 614400 300M EFI System
sda3 1845248 2107391 262144 128M Microsoft reserved
sda4 2107392 598748741 596641350 284.5G Microsoft basic data
sda5 947107840 976773119 29665280 14.1G Windows recovery environment
sda6 598749184 947107839 348358656 166.1G Linux filesystem
Partition table entries are not in disk order.
parted -lm (filtered): _________________________________________________________
sda:500GB:scsi:512:4096:gpt:ATA ST500LT012-1DG14:;
1:1049kB:630MB:629MB:ntfs:Basic data partition:hidden, diag;
2:630MB:945MB:315MB:fat32:EFI system partition:boot, esp;
3:945MB:1079MB:134MB::Microsoft reserved partition:msftres;
4:1079MB:307GB:305GB:ntfs:Basic data partition:msftdata;
6:307GB:485GB:178GB:ext4::;
5:485GB:500GB:15.2GB:ntfs:Basic data partition:hidden, diag;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 ntfs CEEE2424EE2406F5 1cdaaaad-d537-4a9e-a17a-43a551eae1f5 Recovery Basic data partition
├─sda2 vfat EA26-DAF5 6df1b028-a7bd-4e8f-9b03-3bcc33415c95 ESP EFI system partition
├─sda3 b964c407-cc83-480c-b434-b700038af2d1 Microsoft reserved partition
├─sda4 ntfs E22E29F62E29C3FF 2d4c9814-08f1-4138-839e-d033522a3492 Acer Basic data partition
├─sda5 ntfs 00522BCD522BC5EE d2d5a55e-a015-4621-890d-b9a4b058de32 Push Button Reset Basic data partition
└─sda6 ext4 bba9e0ae-e73e-4900-9217-f10402d28acf 2bb421da-62e0-4097-b185-2b22b11c53c2
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda1 315.9M 47% /mnt/boot-sav/sda1
sda4 68.3G 76% /mnt/boot-sav/sda4
sda5 1.4G 90% /mnt/boot-sav/sda5
sda6 146.5G 5% /
Mount options: __________________________________________________________________
sda1 ro,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda4 ro,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda5 ro,relatime,user_id=0,group_id=0,allow_other,blksize=4096
sda6 rw,relatime,errors=remount-ro
===================== sda2/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid bba9e0ae-e73e-4900-9217-f10402d28acf root hd0,gpt6
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda6/boot/grub/grub.cfg (filtered) ======================
Ubuntu bba9e0ae-e73e-4900-9217-f10402d28acf
Ubuntu, avec Linux 5.8.0-41-generic bba9e0ae-e73e-4900-9217-f10402d28acf
Ubuntu, avec Linux 5.8.0-25-generic bba9e0ae-e73e-4900-9217-f10402d28acf
Windows Boot Manager (sur sda2) osprober-efi-EA26-DAF5
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
========================== sda6/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda6 during installation
UUID=bba9e0ae-e73e-4900-9217-f10402d28acf / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda2 during installation
UUID=EA26-DAF5 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
======================= sda6/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=""
==================== sda6: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
329,686363220 = 353,998036992 boot/grub/grub.cfg 2
328,963943481 = 353,222344704 boot/vmlinuz 1
290,029293060 = 311,416582144 boot/vmlinuz-5.8.0-25-generic 2
328,963943481 = 353,222344704 boot/vmlinuz-5.8.0-41-generic 1
290,029293060 = 311,416582144 boot/vmlinuz.old 2
329,486011505 = 353,782910976 boot/initrd.img 1
329,431308746 = 353,724174336 boot/initrd.img-5.8.0-25-generic 1
329,486011505 = 353,782910976 boot/initrd.img-5.8.0-41-generic 1
329,431308746 = 353,724174336 boot/initrd.img.old 1
===================== sda6: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 17622 oct. 1 16:59 10_linux
-rwxr-xr-x 1 root root 42359 oct. 1 16:59 10_linux_zfs
-rwxr-xr-x 1 root root 12894 oct. 1 16:59 20_linux_xen
-rwxr-xr-x 1 root root 12059 oct. 1 16:59 30_os-prober
-rwxr-xr-x 1 root root 1424 oct. 1 16:59 30_uefi-firmware
-rwxr-xr-x 1 root root 214 oct. 1 16:59 40_custom
-rwxr-xr-x 1 root root 216 oct. 1 16:59 41_custom
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of
sda6,
using the following options: sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s win-legacy-basic-fix use-standard-efi-file
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 20.10 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)
