Proxmox does not boot

[gusto]

Today I switched from proxmox 6 to proxmox 7 and see if everything works so far.
My old proxmox 6 had 2x SSD (patriot 256GB) ZFS mirror.
I built the new proxmox 7.1 on the same HW, but I used 2x SSD (samsung 250GB).
My old proxmox 6 used static IP 192.168.1.3.
The new proxmox uses the same IP address (192.168.1.3)
There are still some backups (KVM, LXC) left on the old SSDs (patriot 256GB).
I connected these SSDs to a completely different PC and booted. Proxmox booted, but to avoid an IP conflict, I changed the IP address in
/etc/network/interfaces
from 192.168.1.3 to 192.168.1.199
I rebooted, but the PC didn't reboot, so I turned it off and turned it on manually.
Now when I turn on the PC I see the screen

Error: checksum verification failed. Entering rescue mode
I need to get to the backups

How can I solve this?

 

[gusto]

I solved the problem by reconnecting the ssd disks to the original PC and moving the backups to another disk on the network.

scp -r /var/lib/vz/dump <username>@192.168.1.100:/path_for/backups_from_proxmox