24.04.1 can't load root partition on 6.11 - full disk encryption (lvm)

[ubupro97]

sdacrypt prompt won't even load on 6.11,
but if I revert back to 6.8.0-35-generic I'm fine

Tried three different kernels:

* linux-image-generic which installs 6.8.0-48

Installed via the ubuntu-mainline-kernel.sh script on git:

* 6.11.0-061100-generic (unsigned)

* 6.10.2-061002-generic (unsigned)

--

Btw I get a frozen "loading ubuntu linux 6.11...." with standard boot, but if I choose recovery mode I get an error like

/dev/mapper/ubuntu--vg-root does not exist.

Apologies I should've included my previous post:
https://ubuntuforums.org/showthread.php?t=2501912

All x-site posted on /r/linux4noobs (I left reddit when they stopped being open source, but it seems a lot of the community has scattered about there's some over there? Ubuntu forums was pretty helpful in 2011-2013 for me! ):
https://old.reddit.com/r/linux4noobs...n_on_611_full/

[ubupro97]

bump

[ubupro97]

bump

[ubupro97]

bump

[ubupro97]

bump

[ubupro97]

bump

[yancek]

Did this problem start occurring with the newest kernel?

/dev/mapper/ubuntu--vg-root does not exist.

Does it exist? Have you checked the output of sudo fdisk -l OR sudo parted -l and have you checked the /boot/grub/grub.cfg file to see what it shows? Was your LVM with encryption working on an earlier version of Ubuntu?

[ubupro97]

Hi yes it boots fine on 6.8.0-35

/boot/grub/grub.cfg does show some modifiications, namely some that I added trying to get ROCM to work correctly (and had forgotten about), which are all the same for all the installed kernels

linux   /vmlinuz-6.8.0-35-generic root=/dev/mapper/vgubuntu--mate-root ro  quiet splash radeon.cik_support=0 radeon.si_support=0 amdgp 
u.cik_support=1 amdgpu.si_support=1 $vt_handoff

vs

linux   /vmlinuz-6.11.0-061100-generic root=/dev/mapper/vgubuntu--mate-root ro  quiet splash radeon.cik_support=0 radeon.si_support=0 amdgpu.c
ik_support=1 amdgpu.si_support=1 $vt_handoff

Everything disc related, the UUIDs disk options are the same.


#fdisk -l

Disk /dev/sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 860 
Units: sectors of 1 * 512 = 512 bytes 
Sector size (logical/physical): 512 bytes / 512 bytes 
I/O size (minimum/optimal): 512 bytes / 512 bytes 
Disklabel type: gpt 
Disk identifier: 8476D1F5-C544-4EFF-9AB1-D0DCE24B26DE 

Device      Start       End   Sectors  SizeType
/dev/sda1     2048    1050623    1048576   512M EFI System 
/dev/sda2  1050624    2549759    1499136   732M Linux filesystem 
/dev/sda3  2549760 1953523711 1950973952 930.3G Linux filesystem

## Logical volumes seem fine (from live 6.8.0-35-generic
) :
Disk /dev/mapper/sda3_crypt: 930.28 GiB, 998881886208 bytes, 1950941184 sectors
Disk /dev/mapper/vgubuntu--mate-root: 929.32 GiB, 997854281728 bytes, 1948934144 sectors
Disk /dev/mapper/vgubuntu--mate-swap_1: 976 MiB, 1023410176 bytes, 1998848 sectors

#parted -l

$ ## has one discrepency:

Error: /dev/mapper/sda3_crypt: unrecognised disk label 
Model: Linux device-mapper (crypt) (dm) 
Disk /dev/mapper/sda3_crypt: 999GB 
Sector size (logical/physical): 512B/512B 
Partition Table: unknown 
Disk Flags

[ubupro97]

Bump

[ubupro97]

Bump