Re: Bricked system after migrating to thin LVMs

[Sreyan Chakravarty <sreyan32@xxxxxxxxx>]

Ok,

I think I have found the problem:

Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[861]: Scanning devices dm-0  for LVM logical volumes vgfedora/fedora
Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[886]: inactive '/dev/vgfedora/pool00' [929.75 GiB] inherit
Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[886]: inactive '/dev/vgfedora/fedora' [700.00 GiB] inherit
Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[888]: modprobe: FATAL: Module dm-thin-pool not found in directory /lib/modules/5.8.18-200.fc32.x86_64
Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[888]: /usr/sbin/modprobe failed: 1
Nov 24 10:44:00 localhost.HPNotebook dracut-initqueue[888]: Can't process LV vgfedora/fedora: thin target support missing from kernel?

But I have no idea how to solve it.

I have marked the logical volumes as active via :

             lvchange -kn vgfedora/pool00

             lvchange -kn vgfedora/fedora

But no change.

How will I add the dm-thin-pool module ?

I cannot even boot.

On Tue, Nov 24, 2020 at 2:33 PM Sreyan Chakravarty <sreyan32@xxxxxxxxx> wrote:

Hi,

I have cloned my original root LVM, and then migrated to the newer thin LVMs using partclone.

Both backup and restore went off without causing any problems.

But when I am now trying to boot into my system, it asks for the encryption LUKS passphrase but after that I am getting:

              dracut-initqueue[300]: Warning: dracut-initqueue timeout  -  starting timeout scripts

I have not changed anything. Even my logical volume name is the same as before.

These are the backup and restore commands that I have used from the Fedora live environment:

        (Creating the backup)

         #   partclone.ext4 -c -s /dev/vgfedora/fedora | gzip -c --best > /run/media/liveuser/externalhdd/fedora.tar.gz

         (Restoring the backup)

        #  gzip -c -d /run/media/externalhdd/fedora.tar.gz | partclone.ext4 -r -o /dev/vgfedora/fedora

These commands were run as root from Fedora live environment and prior to taking my backup I had set my logical volume to read-only via:

               #  lvchange -pr vgfedora/fedora

This is my current volume group and logical volumes:

#  lvs

 LV     VG       Attr       LSize   Pool   Origin Data%  Meta%  Move Log Cpy%Sync Convert
  fedora vgfedora Vwi-a-tz-- 700.00g pool00        16.61                                  
  pool00 vgfedora twi-aotz-- 929.75g               12.50  16.61                           

#  vgs

  VG       #PV #LV #SN Attr   VSize   VFree
  vgfedora   1   2   0 wz--n- 929.99g 8.00m

This is my /etc/fstab:

/dev/mapper/vgfedora-fedora /                       ext4    defaults,x-systemd.device-timeout=0 1 1
UUID=4d112d8e-080d-44f2-8962-9c13f20a7885 /boot                   ext4    defaults        1 2
UUID=041A-E511          /boot/efi               vfat    defaults,uid=0,gid=0,umask=077,shortname=winnt 0 2
/fedora.swap none swap defaults 0 2

I have not changed the /etc/fstab after the migration since nothing has changed.

/dev/mapper/vgfedora-fedora still exists. The only difference is that it is a thin LVM volume.

This is my GRUB_CMDLINE:

GRUB_CMDLINE_LINUX="rd.luks.uuid=luks-2ec7f1ae-6f9b-4896-a7b2-be7809e9d2f4 rd.lvm.lv=vgfedora/fedora resume=/dev/disk/by-uuid/03aef3ba-dca1-4cba-a3f5-36c5c0fe948e resume_offset=1449984"

The UUID of the LUKS encryption is still the same, as I can confirm from here :

                 #  ll /dev/disk/by-uuid/

                 #  lrwxrwxrwx. 1 root root 10 Nov 24 03:38 2ec7f1ae-6f9b-4896-a7b2-be7809e9d2f4 -> ../../sda3

I don't know what else I have to change, or what is going wrong. Grub is asking for the password for LUKS and is setting up the encrypted partition, but after that nothing happens.

I guess it is not able to load the root logical volume.

Do I have to re-generate my initramfs ? I didn't think that would be necessary since the LVM thin tools were already installed.

Please let me know if any other info is required from my side.

Need some help as I am unable to use my laptop.

--

Regards,

Sreyan Chakravarty

--

Regards,

Sreyan Chakravarty

_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx