The troublemaker has been found: Due to a hint when creating the thinpool, I added flag -Zn so that the first 4k of volumes on their creation are not set to zero. I wanted to do the SSD drives and possibly PVE a favor. However, as in this case, this will not work.
The thinpool is apparently...
Something seems to be wrong with my specific installation of PVE 7. The backups coming from the PVE 6 host are working on another installation of PVE 7.
On the problematic host, even cloning machines results in corrupt GPT data and failing booting attempts.
Hello everyone
I tested whether I could migrate VMs from PVE 6.4-13 to PVE 7.0-11, using backup and restore, which unfortunately fails. Both PVEs share an equal setup except for their Proxmox version, have an LVM thin pooled storage, were installed from Debian (Buster, Bullseye, respectively)...
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