I am trying to install Ubuntu 22.04 LTS in an old system after wiping the disk clear of the previous dual boot of Ubuntu + Windows. After clearing the disk completely (including the EFI partitions) and installing the new Ubuntu version, the installation is completed as expected. Still, upon boot, the system cannot locate any OS on the disk.
I think the issue is that Ubuntu is installed in UEFI mode and the system is trying to locate an OS in Legacy mode, which could be solved by switching the boot preference to UEFI, but in my case, the Boot Menu is locked with a password and there is no way for me to switch the preference to UEFI in the boot menu.
Would it be possible to force the Ubuntu to boot in Legacy Mode?
Here is the disk-repair report if that would be of any help: https://paste.ubuntu.com/p/Vfn7KFR8cY/
============================== Boot Info Summary ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 2048
of the same hard drive for core.img. core.img is at this location and
looks for (,gpt3)/boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_gpt biosdisk
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: BIOS Boot partition
Boot sector type: Grub2's core.img
Boot sector info:
sda2: __________________________________________________________________________
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
sda3: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 22.04.3 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
/boot/grub/i386-pc/core.img
sdb: ___________________________________________________________________________
File system: iso9660
Boot sector type: Grub2 (v1.99-2.00)
Boot sector info: Grub2 (v1.99-2.00) is installed in the boot sector of
sdb and looks at sector 0 of the same hard drive for
core.img, but core.img can not be found at this
location.
Mounting failed: mount: /mnt/BootInfo/FD/sdb: /dev/sdb already mounted or mount point busy.
================================ 1 OS detected =================================
OS#1: Ubuntu 22.04.3 LTS on sda3
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: 2nd Generation Core Processor Family Integrated Graphics Controller from Intel Corporation
Live-session OS is Ubuntu 64-bit (Ubuntu 22.04.3 LTS, jammy, x86_64)
===================================== UEFI =====================================
BIOS/UEFI firmware: 68SSU Ver. F.21(15.33) from Hewlett-Packard
This live-session is in Legacy/BIOS/CSM mode (not in EFI mode).
a9c517741ac31962d7feb152948ad1ee sda2/BOOT/fbx64.efi
a660182adef313615746a665966d2ccc sda2/BOOT/mmx64.efi
a1da253696a304dce6b4668b70151c0e sda2/ubuntu/grubx64.efi
a660182adef313615746a665966d2ccc sda2/ubuntu/mmx64.efi
64349b3622c65f495a99dbf6102496e3 sda2/ubuntu/shimx64.efi
64349b3622c65f495a99dbf6102496e3 sda2/BOOT/BOOTX64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, hasBIOSboot, has---ESP, not-usb, not-mmc, has-os, no-wind, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda3 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, end-after-100GB
sda2 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
Partitions info (2/3): _________________________________________________________
sda3 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda2 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda3 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
sda2 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
fdisk -l (filtered): ___________________________________________________________
Disk sda: 298.09 GiB, 320072933376 bytes, 625142448 sectors
Disk identifier: 5CA8A647-DAB7-42B3-B71A-2A85B0258980
Start End Sectors Size Type
sda1 2048 4095 2048 1M BIOS boot
sda2 4096 1054719 1050624 513M EFI System
sda3 1054720 625141759 624087040 297.6G Linux filesystem
Disk sdb: 14.46 GiB, 15525216256 bytes, 30322688 sectors
Disk identifier: F45E2FA1-C5A6-4D79-876F-C8245AF921E0
Start End Sectors Size Type
sdb1 64 9828451 9828388 4.7G Microsoft basic data
sdb2 9828452 9838519 10068 4.9M EFI System
sdb3 9838520 9839119 600 300K Microsoft basic data
sdb4 9842688 30322624 20479937 9.8G Linux filesystem
parted -lm (filtered): _________________________________________________________
sda:320GB:scsi:512:512:gpt:ATA HITACHI HTS54323:;
1:1049kB:2097kB:1049kB:::bios_grub;
2:2097kB:540MB:538MB:fat32:EFI System Partition:boot, esp;
3:540MB:320GB:320GB:ext4::;
sdb:15.5GB:scsi:512:512:gpt:hp v301w:;
1:32.8kB:5032MB:5032MB::ISO9660:hidden, msftdata;
2:5032MB:5037MB:5155kB::Appended2:boot, esp;
3:5037MB:5038MB:307kB::Gap1:hidden, msftdata;
4:5039MB:15.5GB:10.5GB:ext4::;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 599c001f-183e-4bc7-a519-2014ac40cb19
├─sda2 vfat A27C-67AF d38dfae1-60c1-4e50-9eaa-6630ca638dfe EFI System Partition
└─sda3 ext4 dbbea994-f196-496c-9f3c-001e3503ca87 686b7161-d7ef-4388-b29b-067d52f28771
sdb iso9660 2023-08-08-01-19-05-00 Ubuntu 22.04.3 LTS amd64
├─sdb1 iso9660 2023-08-08-01-19-05-00 f45e2fa1-c5a6-4d79-876e-c8245af921e0 Ubuntu 22.04.3 LTS amd64 ISO9660
├─sdb2 vfat F7DB-4D56 f45e2fa1-c5a6-4d79-876d-c8245af921e0 ESP Appended2
├─sdb3 f45e2fa1-c5a6-4d79-876c-c8245af921e0 Gap1
└─sdb4 ext4 5059423a-6013-4bf1-a0f2-18a2180bd6f4 91426e3f-0824-ee48-b8a6-5d7336785176 writable
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/sda2 505.9M 1% /mnt/boot-sav/sda2
/dev/sda3 263.7G 5% /target
/dev/sdb1 0 100% /cdrom
Mount options (filtered): ______________________________________________________
/dev/sda2 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/sda3 ext4 rw,relatime,errors=remount-ro
/dev/sdb1 iso9660 ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8
===================== sda2/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid dbbea994-f196-496c-9f3c-001e3503ca87 root hd0,gpt3
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda3/boot/grub/grub.cfg (filtered) ======================
Ubuntu dbbea994-f196-496c-9f3c-001e3503ca87
END /etc/grub.d/30_os-prober
END /etc/grub.d/30_uefi-firmware
========================== sda3/etc/fstab (filtered) ===========================
<file system> <mount point> <type> <options> <dump> <pass>
/ was on /dev/sda3 during installation
UUID=dbbea994-f196-496c-9f3c-001e3503ca87 / ext4 errors=remount-ro 0 1
/boot/efi was on /dev/sda2 during installation
UUID=A27C-67AF /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
======================= sda3/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=""
==================== sda3: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
158.939720154 = 170.660225024 boot/grub/grub.cfg 1
159.129451752 = 170.863947776 boot/grub/i386-pc/core.img 1
11.766181946 = 12.633841664 boot/vmlinuz 1
10.263324738 = 11.020161024 boot/vmlinuz-6.2.0-26-generic 2
11.766181946 = 12.633841664 boot/vmlinuz-6.5.0-15-generic 1
10.263324738 = 11.020161024 boot/vmlinuz.old 2
215.739784241 = 231.648829440 boot/initrd.img 1
215.449123383 = 231.336734720 boot/initrd.img-6.2.0-26-generic 1
215.739784241 = 231.648829440 boot/initrd.img-6.5.0-15-generic 1
215.449123383 = 231.336734720 boot/initrd.img.old 1
===================== sda3: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 18683 Dec 19 2022 10_linux
-rwxr-xr-x 1 root root 43031 Dec 19 2022 10_linux_zfs
-rwxr-xr-x 1 root root 14387 Dec 19 2022 20_linux_xen
-rwxr-xr-x 1 root root 13369 Dec 19 2022 30_os-prober
-rwxr-xr-x 1 root root 1372 Dec 19 2022 30_uefi-firmware
-rwxr-xr-x 1 root root 700 May 17 2023 35_fwupd
-rwxr-xr-x 1 root root 214 Dec 19 2022 40_custom
-rwxr-xr-x 1 root root 215 Dec 19 2022 41_custom
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub-efi of
sda3,
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: __________________________________________
/target detected. Please close the Ubuntu installer, then retry. The current session is in BIOS-compatibility mode. Please disable BIOS-compatibility/CSM/Legacy mode in your UEFI firmware, and use this software from a live-CD (or live-USB) that is compatible with UEFI booting mode. For example, use a live-USB of Boot-Repair-Disk-64bit (www.sourceforge.net/p/boot-repair-cd), after making sure your BIOS is set up to boot USB in EFI mode. This will enable this feature.
Final advice in case of suggested repair: ______________________________________
Please do not forget to make your UEFI firmware boot on the Ubuntu 22.04.3 LTS entry (sda2/efi/**/grub.efi (** will be updated in the final message) file) !
The boot of your PC is in BIOS-compatibility/CSM/Legacy mode. You may want to retry after changing it to UEFI mode.
