Upgrade from 8 to 9 proxmox VE 9.1.4 with ceph v19.2.3 , problem with plymouth

[coulon]

Proxmox VE 9.1.4 cannot start!!
message error : rescue.service: unable to locate executable plymouth : no such file or directory
The image is below.
I tried the update-grub command, but it didn't work.


Help me, how do I find resources in Plymouth?
Thank you.

 

[Gilou]

Your actual problem is systemd going to rescue.. plymouth shouldn't be installed on proxmox, I think, maybe it came with a dependency from someone installed..
What state is your proxmox install? does it drop to a root shell? Can you try to boot the former kernel (might not work..) from GRUB?