I have a laptop with Ubuntu installed as the only OS, I've been using it fine for months.
Today, it stopped working. I think it may have been that I turned it off on accident when the grub menu was loading, but I'm not sure if that caused it. Whenever I try to turn on the computer, the GRUB CLI loads but I'm unable to get it to boot.
exit command just restarts the loop and I end up back in the GRUB CLI.
boot command says I need to load the kernel first.
grub> ls
(proc) (memdisk) (hd0) (hd0,gpt3) (hd0,gpt2) (hd0,gpt1)
the filesystem for (hd0,gpt1) is
/
/efi
/boot
some .efi files
/ubuntu
some .efi files, a bootx64.csv, /fw, and a grub.cfg file
otherwise there seem to be no files grub can see in any of the other partitions
If I set prefix=(hd0,gpt1)/efi/ubuntu, then insmod linux then insmod normal then normal, it says "no such device [long string]"
It's an encrypted hard drive. I used a live usb to "try" ubuntu, and ran boot-repair after I used cryptsetup open to decrypt nvme0n1p3.
Here's the output from running lsblk on the live usb:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 1.6G 1 loop /rofs
loop1 7:1 0 471M 1 loop
loop2 7:2 0 874.4M 1 loop
loop3 7:3 0 74.3M 1 loop /snap/core22/1564
loop4 7:4 0 4K 1 loop /snap/bare/5
loop5 7:5 0 10.7M 1 loop /snap/firmware-updater/127
loop6 7:6 0 269.8M 1 loop /snap/firefox/4793
loop7 7:7 0 505.1M 1 loop /snap/gnome-42-2204/176
loop8 7:8 0 10.5M 1 loop /snap/snap-store/1173
loop9 7:9 0 91.7M 1 loop /snap/gtk-common-themes/1535
loop10 7:10 0 38.8M 1 loop /snap/snapd/21759
loop11 7:11 0 500K 1 loop /snap/snapd-desktop-integration/178
loop12 7:12 0 116.8M 1 loop /snap/ubuntu-desktop-bootstrap/237
loop13 7:13 0 149.6M 1 loop /snap/thunderbird/507
sda 8:0 1 14.4G 0 disk
├─sda1 8:1 1 5.8G 0 part /cdrom
├─sda2 8:2 1 5M 0 part
├─sda3 8:3 1 300K 0 part
└─sda4 8:4 1 8.7G 0 part /var/crash
/var/log
nvme0n1 259:0 0 238.5G 0 disk
├─nvme0n1p1 259:4 0 1G 0 part
├─nvme0n1p2 259:5 0 2G 0 part
└─nvme0n1p3 259:6 0 235.4G 0 part
└─ccc 252:0 0 235.4G 0 crypt
└─ubuntu--vg-ubuntu--lv 252:1 0 235.4G 0 lvm
Here's the output from boot-repair:
boot-repair-4ppa2081 [20241111_2208]
============================== Boot Info Summary ===============================
=> No boot loader is installed in the MBR of /dev/nvme0n1.
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/fbx64.efi /efi/BOOT/mmx64.efi
/efi/ubuntu/fwupdx64.efi /efi/ubuntu/grubx64.efi
/efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi
/efi/ubuntu/grub.cfg
nvme0n1p2: _____________________________________________________________________
File system:
Boot sector type: Unknown
Boot sector info:
nvme0n1p3: _____________________________________________________________________
File system: crypto_LUKS
Boot sector type: Unknown
Boot sector info:
sda: ___________________________________________________________________________
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
sda 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/sda: /dev/sda already mounted or mount point busy.
dmesg(1) may have more information after failed mount system call.
================================ 1 OS detected =================================
OS#1 (linux): Ubuntu 24.04.1 LTS on mapper/ubuntu--vg-ubuntu--lv
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: Alder Lake-UP3 GT2 [Iris Xe Graphics] from Intel Corporation
Live-session OS is Ubuntu 64-bit (Ubuntu 24.04.1 LTS, noble, x86_64)
===================================== UEFI =====================================
BIOS/UEFI firmware: N3MET22W (1.21 )(1.21) from LENOVO
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 001F
Timeout: 0 seconds
BootOrder: 0001,0003,0000,0010,0011,0012,0013,0014,0015,0016,0017,0018,0019,001C,001D,001E,001F,0020,0021,0022,0023,0024,0002
Boot0000* Windows Boot Manager HD(1,GPT,2818748c-f04b-4fc8-a0a3-300afad723e5,0x800,0x219800)/File(\EFI\Microsoft\Boot\bootmgfw.efi)57494e444f5753000100000088000000780000004200430044004f0042004a004500430054003d007b00390064006500610038003600320063002d0035006300640064002d0034006500370030002d0061006300630031002d006600330032006200330034003400640034003700390035007d00000035000100000010000000040000007fff0400
Boot0001* Ubuntu HD(1,GPT,2818748c-f04b-4fc8-a0a3-300afad723e5,0x800,0x219800)/File(\EFI\ubuntu\shimx64.efi)
Boot0002* Linux-Firmware-Updater HD(1,GPT,2818748c-f04b-4fc8-a0a3-300afad723e5,0x800,0x219800)/File(\EFI\ubuntu\fwupdx64.efi)
Boot0003* ubuntu HD(1,GPT,14e74811-f833-4b4b-8e94-a8bae1a58f94,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
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 Asset Information FvFile(da465b87-a26f-4c12-b78a-0361428fa026)
Boot0015 Regulatory Information FvFile(478c92a0-2622-42b7-a65d-5894169e4d24)
Boot0016 ThinkShield secure wipe FvFile(3593a0d5-bd52-43a0-808e-cbff5ece2477)
Boot0017 ThinkShield Passwordless Power-On Device Manager FvFile(08448b41-7f83-49be-82a7-0e84790ab133)
Boot0018 Wi-Fi Configuration FvFile(d3aaff0f-cb22-4792-896c-802c2e9383ba)2d004100700070000000
Boot0019 Intel(R) MEBx FvFile(29a70110-7762-4211-ae88-fab19b7665be)
Boot001A Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot001B Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot001C* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot001D* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot001E* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)
Boot001F* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)
Boot0020* PXE BOOT VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot0021* LENOVO CLOUD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,ad38ccbbf7edf04d959cf42aa74d3650)/Uri(https://download.lenovo.com/pccbbs/cdeploy/efi/boot.efi)
Boot0022* ON-PREMISE VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,ad38ccbbf7edf04d959cf42aa74d3650)/Uri()
Boot0023 Other CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a35400)
Boot0024 Other HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,ca88c2349e7ae947beeb43038a5aeae700)
Boot0025* IDER BOOT CDROM PciRoot(0x0)/Pci(0x14,0x0)/USB(11,1)
Boot0026* IDER BOOT Floppy PciRoot(0x0)/Pci(0x14,0x0)/USB(11,0)
Boot0027* ATA HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f6)
Boot0028* ATAPI CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a354)
39bc76ff6662f4fbe9aa116e4c997b41 nvme0n1p1/BOOT/fbx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/BOOT/mmx64.efi
258e2247878acb0a2944052e26657e81 nvme0n1p1/ubuntu/fwupdx64.efi
66f69798ad23240e43b7ba0044a914c4 nvme0n1p1/ubuntu/grubx64.efi
4ba5a5aad43c197e9fb58b76b404d287 nvme0n1p1/ubuntu/mmx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/ubuntu/shimx64.efi
07e25dcaf57c776875f78fa36827c58e nvme0n1p1/BOOT/BOOTX64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
nvme0n1 : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, no-os, no-wind, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
nvme0n1p1 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
nvme0n1p2 : no-os, 64, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
Partitions info (2/3): _________________________________________________________
nvme0n1p1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, vfat
nvme0n1p2 : isnotESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot,
Partitions info (3/3): _________________________________________________________
nvme0n1p1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
nvme0n1p2 : maybesepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, nvme0n1
fdisk -l (filtered): ___________________________________________________________
Disk nvme0n1: 238.47 GiB, 256060514304 bytes, 500118192 sectors
Disk identifier: BC00A794-172F-47E9-8E03-DB602ACB1BCB
Start End Sectors Size Type
nvme0n1p1 2048 2203647 2201600 1G EFI System
nvme0n1p2 2203648 6397951 4194304 2G Linux filesystem
nvme0n1p3 6397952 500115455 493717504 235.4G Linux filesystem
Disk sda: 14.44 GiB, 15506341888 bytes, 30285824 sectors
Disk identifier: EED3DE8A-ACD3-4541-BA15-9014C007D874
Start End Sectors Size Type
sda1 64 12105119 12105056 5.8G Microsoft basic data
sda2 12105120 12115263 10144 5M EFI System
sda3 12115264 12115863 600 300K Microsoft basic data
sda4 12115968 30283775 18167808 8.7G Linux filesystem
Disk mapper/ccc: 235.41 GiB, 252766584832 bytes, 493684736 sectors
Disk mapper/ubuntu--vg-ubuntu--lv: 235.41 GiB, 252765536256 bytes, 493682688 sectors
parted -lm (filtered): _________________________________________________________
sda:15.5GB:scsi:512:512:gpt:PNY USB 2.0 FD:;
1:32.8kB:6198MB:6198MB::ISO9660:hidden, msftdata;
2:6198MB:6203MB:5194kB::Appended2:boot, esp;
3:6203MB:6203MB:307kB::Gap1:hidden, msftdata;
4:6203MB:15.5GB:9302MB:ext4::;
mapper/ccc:253GB:dm:512:512:unknown:Linux device-mapper (crypt):;
mapper/ubuntu--vg-ubuntu--lv:253GB:dm:512:512:loop:Linux device-mapper (linear):;
1:0.00B:253GB:253GB:ext4::;
nvme0n1:256GB:nvme:512:512:gpt:SKHynix_HFS256GDE9X081N:;
1:1049kB:1128MB:1127MB:fat32::boot, esp;
2:1128MB:3276MB:2147MB:::;
3:3276MB:256GB:253GB:::;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda iso9660 2024-08-27-16-23-26-00 Ubuntu 24.04.1 LTS amd64
├─sda1 iso9660 2024-08-27-16-23-26-00 eed3de8a-acd3-4541-ba14-9014c007d874 Ubuntu 24.04.1 LTS amd64 ISO9660
├─sda2 vfat 3C53-CAEB eed3de8a-acd3-4541-ba17-9014c007d874 ESP Appended2
├─sda3 eed3de8a-acd3-4541-ba16-9014c007d874 Gap1
└─sda4 ext4 10370da4-88ae-4d81-87f9-a21c0c289284 f104bb5c-6652-48c6-ac62-80e7e90f99e7 writable
nvme0n1
├─nvme0n1p1 vfat AC58-0E43 2818748c-f04b-4fc8-a0a3-300afad723e5
├─nvme0n1p2 d5781fb0-76e2-4e3f-aac0-0d8399a42bec
└─nvme0n1p3 crypto_LUKS a2ac37e9-591e-4bc9-8623-a865644092f4 49ea5b3e-5e71-418b-a2d2-4b8fce1ce7cf
└─ccc LVM2_member dWJBu1-uYJg-SRDp-cWdJ-bmHv-xVdU-pE4P0j
└─ubuntu--vg-ubuntu--lv ext4 c39e2bb8-f753-4c9d-bbd8-dfa60a48dcd6
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/nvme0n1p1 1G 1% /mnt/boot-sav/nvme0n1p1
/dev/sda1 0 100% /cdrom
efivarfs 123.2K 35% /sys/firmware/efi/efivars
Mount options (filtered): ______________________________________________________
/dev/nvme0n1p1 vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/sda1 iso9660 ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8
============================== ls -R /dev/mapper/ ==============================
/dev/mapper:
ccc
control
ubuntu--vg-ubuntu--lv
=================== nvme0n1p1/efi/ubuntu/grub.cfg (filtered) ===================
search.fs_uuid b840fc96-a180-49a0-b4c0-3968bbfcd75a root
set prefix=($root)'/grub'
configfile $prefix/grub.cfg
======================== Unknown MBRs/Boot Sectors/etc =========================
Unknown BootLoader on nvme0n1p2
Unknown BootLoader on nvme0n1p3
================================= User choice ==================================
Is there RAID on this computer? no
==================== blkid (filtered) before lvm activation ====================
/dev/nvme0n1p1: UUID="AC58-0E43" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="2818748c-f04b-4fc8-a0a3-300afad723e5"
/dev/sda1: BLOCK_SIZE="2048" UUID="2024-08-27-16-23-26-00" LABEL="Ubuntu 24.04.1 LTS amd64" TYPE="iso9660" PARTLABEL="ISO9660" PARTUUID="eed3de8a-acd3-4541-ba14-9014c007d874"
/dev/nvme0n1p3: UUID="a2ac37e9-591e-4bc9-8623-a865644092f4" TYPE="crypto_LUKS" PARTUUID="49ea5b3e-5e71-418b-a2d2-4b8fce1ce7cf"
/dev/sda4: LABEL="writable" UUID="10370da4-88ae-4d81-87f9-a21c0c289284" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="f104bb5c-6652-48c6-ac62-80e7e90f99e7"
/dev/sda2: SEC_TYPE="msdos" LABEL_FATBOOT="ESP" LABEL="ESP" UUID="3C53-CAEB" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="Appended2" PARTUUID="eed3de8a-acd3-4541-ba17-9014c007d874"
/dev/mapper/ubuntu--vg-ubuntu--lv: UUID="c39e2bb8-f753-4c9d-bbd8-dfa60a48dcd6" BLOCK_SIZE="4096" TYPE="ext4"
/dev/mapper/ccc: UUID="dWJBu1-uYJg-SRDp-cWdJ-bmHv-xVdU-pE4P0j" TYPE="LVM2_member"
/dev/nvme0n1p2: PARTUUID="d5781fb0-76e2-4e3f-aac0-0d8399a42bec"
/dev/sda3: PARTLABEL="Gap1" PARTUUID="eed3de8a-acd3-4541-ba16-9014c007d874"
================================ LVM activation ================================
modprobe dm-mod
vgscan --mknodes
Found volume group "ubuntu-vg" using metadata type lvm2
vgchange -ay
1 logical volume(s) in volume group "ubuntu-vg" now active
lvscan
ACTIVE '/dev/ubuntu-vg/ubuntu-lv' [<235.41 GiB] inherit
blkid -g
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would not act on the boot.
Confirmation request before suggested repair: __________________________________
You may want to retry after mounting your encrypted partitions so that the tool can verify their contents. (cryptsetup open)
Are you sure you want to continue anyway?
How do I load the kernal so I can fix my ubuntu installation without losing all my files?
