I had a dual boot in my Lenovo ThinkPad. Unfortunately, I rest the boot settings to defaults and saved those. Now I couldn't find the Ubuntu option in the boot menu. Find the below image for your reference.
I tried Boot-Repair also. Please find this Ubuntu paste for more information.
============================= Boot Repair Summary ==============================modprobe: FATAL: Module efivars not found in directory /lib/modules/6.2.0-26-genericRecommended repair: ____________________________________________________________The default repair of the Boot-Repair utility will reinstall the grub-efi ofnvme0n1p5,using the following options: nvme0n1p1/boot/efiAdditional repair will be performed: unhide-bootmenu-10s use-standard-efi-fileDo you want to remove the [hidden] flag of /dev/nvme0n1p1 ?parted /dev/nvme0n1 set 1 hidden offSET@_label0.set_text('''Checking full partitions. This may require several minutes...''')Mount /dev/nvme0n1p1 on /mnt/boot-sav/nvme0n1p5/boot/efiUnhide GRUB boot menu in nvme0n1p5/etc/default/grub=================== Reinstall the grub-efi of /dev/nvme0n1p5 ===================chroot /mnt/boot-sav/nvme0n1p5 grub-install --versiongrub-install (GRUB) 2.06-2ubuntu7.2modprobe: FATAL: Module efivars not found in directory /lib/modules/6.2.0-26-genericchroot /mnt/boot-sav/nvme0n1p5 modprobe efivarschroot /mnt/boot-sav/nvme0n1p5 efibootmgr -v before grub installEFI variables are not supported on this system.chroot /mnt/boot-sav/nvme0n1p5 uname -r6.2.0-26-genericchroot /mnt/boot-sav/nvme0n1p5 grub-install --efi-directory=/boot/efi --target=x86_64-efiInstalling for x86_64-efi platform.grub-install: warning: EFI variables cannot be set on this system.grub-install: warning: You will have to complete the GRUB setup manually.Installation finished. No error reported.chroot /mnt/boot-sav/nvme0n1p5 efibootmgr -v after grub installEFI variables are not supported on this system.Warning: NVram is locked (Ubuntu not found in efibootmgr).chroot /mnt/boot-sav/nvme0n1p5 update-grubSourcing file `/etc/default/grub'Sourcing file `/etc/default/grub.d/init-select.cfg'Found linux image: /boot/vmlinuz-6.5.0-14-genericFound initrd image: /boot/initrd.img-6.5.0-14-genericFound linux image: /boot/vmlinuz-6.2.0-39-genericFound initrd image: /boot/initrd.img-6.2.0-39-genericFound linux image: /boot/vmlinuz-5.19.0-50-genericFound initrd image: /boot/initrd.img-5.19.0-50-genericFound linux image: /boot/vmlinuz-5.15.0-91-genericFound initrd image: /boot/initrd.img-5.15.0-91-genericFound Windows Boot Manager on /dev/nvme0n1p1@/EFI/Microsoft/Boot/bootmgfw.efiUnhide GRUB boot menu in nvme0n1p5/boot/grub/grub.cfgBoot successfully repaired.Locked-NVram detected. Please do not forget to make your UEFI firmware boot on the Ubuntu 22.04.3 LTS entry (nvme0n1p1/efi/ubuntu/grubx64.efi file) !============================ Boot Info After Repair ============================ => No boot loader is installed in the MBR of /dev/nvme0n1. => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (hd0,msdos1)/boot/grub. It also embeds following components: modules --------------------------------------------------------------------------- biosdisk fshelp fat exfat ext2 ntfs ntfscomp part_msdos ---------------------------------------------------------------------------nvme0n1p1: _____________________________________________________________________ File system: vfat Boot sector type: 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.efinvme0n1p2: _____________________________________________________________________ File system: Boot sector type: - Boot sector info: nvme0n1p3: _____________________________________________________________________ File system: ntfs Boot sector type: NTFS Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows 10 or 11 Boot files: /Windows/System32/winload.exenvme0n1p4: _____________________________________________________________________ File system: ntfs Boot sector type: NTFS Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files: nvme0n1p5: _____________________________________________________________________ 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/grubsda1: __________________________________________________________________________ File system: vfat Boot sector type: MSWIN4.1: FAT32 Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files: /boot/grub/grub.cfg /efi/boot/bootx64.efi /efi/boot/grubx64.efi /efi/boot/mmx64.efi================================ 2 OS detected =================================OS#1: Ubuntu 22.04.3 LTS on nvme0n1p5OS#2: Windows 10 or 11 on nvme0n1p3================================ Host/Hardware =================================CPU architecture: 64-bitVideo: TigerLake-LP GT2 [Iris Xe Graphics] GP107M [GeForce MX350] from Intel Corporation NVIDIA CorporationLive-session OS is Ubuntu 64-bit (Ubuntu 22.04.3 LTS, jammy, x86_64)===================================== UEFI =====================================BIOS/UEFI firmware: R1EET56W(1.56 )(1.56) from LENOVOThe firmware is EFI-compatible, and is set in EFI-mode for this live-session.SecureBoot disabled (confirmed by mokutil).BootCurrent: 001CTimeout: 0 secondsBootOrder: 0000,0010,0011,0012,0013,0016,0017,0018,0019,001A,001B,001C,001D,001EBoot0000* Windows Boot Manager HD(1,GPT,b616de8e-f403-4e15-90f3-29dc2f85d1a5,0x800,0x82000)/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.}...$................Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)Boot0011 Boot Menu FvFile(126a762d-5758-4fca-8531-201a7f57f850)Boot0012 Diagnostic Splash Screen FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)Boot0013 Lenovo Diagnostics FvFile(3f7e615b-0d45-4f80-88dc-26b234958560)Boot0014 Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)Boot0015 Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)Boot0016* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)Boot0017* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)Boot0018* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)Boot0019* NVMe1 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a401)Boot001A Other CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a35400)Boot001B Other HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f600)Boot001C* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)Boot001D* PXE BOOT VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)Boot001E Regulatory Information FvFile(478c92a0-2622-42b7-a65d-5894169e4d24)64349b3622c65f495a99dbf6102496e3 nvme0n1p1/Boot/bootx64.efia9c517741ac31962d7feb152948ad1ee nvme0n1p1/Boot/fbx64.efia660182adef313615746a665966d2ccc nvme0n1p1/Boot/mmx64.efia1da253696a304dce6b4668b70151c0e nvme0n1p1/ubuntu/grubx64.efia660182adef313615746a665966d2ccc nvme0n1p1/ubuntu/mmx64.efi64349b3622c65f495a99dbf6102496e3 nvme0n1p1/ubuntu/shimx64.efi02dd7d76d9614e07d9a3db7d9994427a nvme0n1p1/Microsoft/Boot/bootmgfw.efibe00f48987921b48a0c93f4420965563 nvme0n1p1/Microsoft/Boot/bootmgr.efia7d2b5a20ff5098975ba4743f80faf26 nvme0n1p1/Boot/LenovoBT.efi============================= Drive/Partition Info =============================Disks info: ____________________________________________________________________nvme0n1 : is-GPT, no-BIOSboot, hashidESP, not-usb, not-mmc, has-os, has-win, 2048 sectors * 512 bytesPartitions info (1/3): _________________________________________________________nvme0n1p1 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-farnvme0n1p3 : is-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GBnvme0n1p4 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, end-after-100GBnvme0n1p5 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, end-after-100GBPartitions info (2/3): _________________________________________________________nvme0n1p1 : hidenESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinbootnvme0n1p3 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinbootnvme0n1p4 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinbootnvme0n1p5 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinbootPartitions info (3/3): _________________________________________________________nvme0n1p1 : not--sepboot, no-kernel, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1nvme0n1p3 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1nvme0n1p4 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1nvme0n1p5 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, nvme0n1fdisk -l (filtered): ___________________________________________________________Disk nvme0n1: 476.94 GiB, 512110190592 bytes, 1000215216 sectorsDisk identifier: 637128C5-AE53-44F8-AC03-A9EA7A5E3E52 Start End Sectors Size Typenvme0n1p1 2048 534527 532480 260M EFI Systemnvme0n1p2 534528 567295 32768 16M Microsoft reservednvme0n1p3 567296 489586527 489019232 233.2G Microsoft basic datanvme0n1p4 998166528 1000214527 2048000 1000M Windows recovery environmentnvme0n1p5 489586688 998166527 508579840 242.5G Linux filesystemPartition table entries are not in disk order.Disk sda: 28.67 GiB, 30784094208 bytes, 60125184 sectorsDisk identifier: 0x4d620d4a Boot Start End Sectors Size Id Typesda1 * 2048 60125183 60123136 28.7G c W95 FAT32 (LBA)parted -lm (filtered): _________________________________________________________sda:30.8GB:scsi:512:512:msdos: USB SanDisk 3.2Gen1:;1:1049kB:30.8GB:30.8GB:fat32::boot, lba;nvme0n1:512GB:nvme:512:512:gpt:SAMSUNG MZALQ512HALU-000L1:;1:1049kB:274MB:273MB:fat32:EFI system partition:boot, hidden, esp;2:274MB:290MB:16.8MB::Microsoft reserved partition:msftres;3:290MB:251GB:250GB:ntfs:Basic data partition:msftdata;5:251GB:511GB:260GB:ext4::;4:511GB:512GB:1049MB:ntfs::hidden, diag;blkid (filtered): ______________________________________________________________NAME FSTYPE UUID PARTUUID LABEL PARTLABELsda └─sda1 vfat 784F-FE8D 4d620d4a-01 UBUNTU 22_0 nvme0n1 ├─nvme0n1p1 vfat 304C-0EE3 b616de8e-f403-4e15-90f3-29dc2f85d1a5 SYSTEM EFI system partition├─nvme0n1p2 cae82cae-ef92-40a0-a7ed-1f20ef6c079a Microsoft reserved partition├─nvme0n1p3 ntfs 6EA44EA7A44E719F feec7a7f-40f3-4215-be8f-a85e58317f70 Windows Basic data partition├─nvme0n1p4 ntfs BCB44F47B44F02FE fdbcacd3-7a8b-4b09-84e6-dec0c3812573 WinRE_DRV Basic data partition└─nvme0n1p5 ext4 d02ea554-e3d7-4efb-bf82-c6cbe3967615 19c93340-d1e7-46f5-a9e1-1074249e7a52 Mount points (filtered): _______________________________________________________ Avail Use% Mounted on/dev/nvme0n1p1 220.8M 14% /mnt/boot-sav/nvme0n1p1/dev/nvme0n1p3 154G 34% /mnt/boot-sav/nvme0n1p3/dev/nvme0n1p4 484.8M 52% /mnt/boot-sav/nvme0n1p4/dev/nvme0n1p5 36.8G 79% /mnt/boot-sav/nvme0n1p5/dev/sda1 24G 16% /cdromMount options (filtered): ______________________________________________________/dev/nvme0n1p1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro/dev/nvme0n1p3 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096/dev/nvme0n1p4 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096/dev/nvme0n1p5 ext4 rw,relatime/dev/sda1 vfat ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro=================== nvme0n1p1/efi/ubuntu/grub.cfg (filtered) ===================search.fs_uuid d02ea554-e3d7-4efb-bf82-c6cbe3967615 root set prefix=($root)'/boot/grub'configfile $prefix/grub.cfg=================== nvme0n1p5/boot/grub/grub.cfg (filtered) ====================Ubuntu d02ea554-e3d7-4efb-bf82-c6cbe3967615Windows Boot Manager (on nvme0n1p1) osprober-efi-304C-0EE3### END /etc/grub.d/30_os-prober ###### END /etc/grub.d/30_uefi-firmware ###======================== nvme0n1p5/etc/fstab (filtered) ========================# <file system> <mount point> <type> <options> <dump> <pass># / was on /dev/nvme0n1p5 during installationUUID=d02ea554-e3d7-4efb-bf82-c6cbe3967615 / ext4 errors=remount-ro 0 1# /boot/efi was on /dev/nvme0n1p1 during installationUUID=304C-0EE3 /boot/efi vfat umask=0077 0 1/swapfile none swap sw 0 0==================== nvme0n1p5/etc/default/grub (filtered) =====================GRUB_DEFAULT=0GRUB_TIMEOUT_STYLE=menuGRUB_TIMEOUT=10GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"GRUB_CMDLINE_LINUX=""GRUB_DISABLE_OS_PROBER=false================= nvme0n1p5: Location of files loaded by Grub ================== GiB - GB File Fragment(s) ?? = ?? boot/grub/grub.cfg 1 425.156246185 = 456.508043264 boot/vmlinuz 2 450.753002167 = 483.992350720 boot/vmlinuz-5.15.0-91-generic 1 406.105133057 = 436.052066304 boot/vmlinuz-5.19.0-50-generic 2 404.046871185 = 433.842024448 boot/vmlinuz-6.2.0-39-generic 2 425.156246185 = 456.508043264 boot/vmlinuz-6.5.0-14-generic 2 404.046871185 = 433.842024448 boot/vmlinuz.old 2 412.877876282 = 443.324243968 boot/initrd.img 5 439.201831818 = 471.589376000 boot/initrd.img-5.15.0-91-generic 7 413.318481445 = 443.797340160 boot/initrd.img-5.19.0-50-generic 7 242.156246185 = 260.013289472 boot/initrd.img-6.2.0-39-generic 5 412.877876282 = 443.324243968 boot/initrd.img-6.5.0-14-generic 5 242.156246185 = 260.013289472 boot/initrd.img.old 5=================== nvme0n1p5: ls -l /etc/grub.d/ (filtered) ===================-rwxr-xr-x 1 root root 18683 Apr 15 2022 10_linux-rwxr-xr-x 1 root root 43031 Apr 15 2022 10_linux_zfs-rwxr-xr-x 1 root root 14387 Dec 18 2022 20_linux_xen-rwxr-xr-x 1 root root 13369 Apr 15 2022 30_os-prober-rwxr-xr-x 1 root root 1372 Apr 15 2022 30_uefi-firmware-rwxr-xr-x 1 root root 700 Feb 21 2022 35_fwupd-rwxr-xr-x 1 root root 214 Aug 12 2021 40_custom-rwxr-xr-x 1 root root 215 Apr 15 2022 41_custom====================== sda1/boot/grub/grub.cfg (filtered) ======================Try or Install UbuntuUbuntu (safe graphics)OEM install (for manufacturers)Boot from next volumeUEFI Firmware SettingsTest memory==================== sda1: Location of files loaded by Grub ==================== GiB - GB File Fragment(s) ?? = ?? boot/grub/grub.cfg 1I can able to view all files and folders through the live CD
Expected behavior:
The boot menu should have line item "ubuntu" and grub menu should be present when I power up my machine.