lvm: Volume group "pve" not found

[martin90]

Hi everyone,
first of i would like to say thank you for this great piece of software
and in particular for the fact that it is freely accessible which allows me as a student to gain experience in this field.
Thanks for that.

However, i ran into a problem i cannot solve myself.
The problem is that after a kernel update from „pve-kernel-5.3.10-1-pve“ to the newest kernel (actually every kernel since that one)
I can't boot the system because lvm can't find the group “pve” anymore.
I know this is quite a common problem and I have already tried some suggestions but non of them fixed the problem.

For example:
changing the rootdelay in grub to 30s → didn't help

setting all volume groups to active in initramfs with vgchange -ay
in fact a vgscan -v reports that it couldn’t find any volume groups on my system

However I am still able to boot the system when I select the old kernel.
if i run vgscan -v it shows me my volume groups as it should.

root@pve:~# vgscan -v
  Reading all physical volumes.  This may take a while...
  Found volume group "pve" using metadata type lvm2
root@pve:~# lvscan -v
  ACTIVE            '/dev/pve/swap' [8.00 GiB] inherit
  ACTIVE            '/dev/pve/root' [29.50 GiB] inherit
  ACTIVE            '/dev/pve/data' [<64.49 GiB] inherit

What could be the problem?

 

[aaron]

On what kind of hardware do you run PVE? Are the disks connected via some RAID controller?

 

[martin90]

I just rebuilt the server because I suspect that I was responsible for the error.
Now everything runs as expected.