Restore TASK ERROR: unable to restore CT 100 - unable to read version info

[brunoverdi]

Hi guys, whats up?

We are upgrading our Proxmox Servers from version 3.4-6 to 6.2-4... Everything works fine with the openvz containers converting to LXC.

We always backup that openvz container in the Proxmox 3.4-6 and then we restore in the new Proxmox Environment (6.2-4) adjusting the network configs... We did this many times and it worked.... Except for this last restore, wich results in:

extracting archive '/var/snapshot-virt003/dump/vzdump-openvz-103-2020_09_20-12_09_15.tar.lzo'
Total bytes read: 41450393600 (39GiB, 148MiB/s)
Detected container architecture: amd64
###########################################################
Converting OpenVZ configuration to LXC.
Please check the configuration and reconfigure the network.
###########################################################
TASK ERROR: unable to restore CT 100 - unable to read version info

We have already checked the system release and it's the same from the others we've restored (CentOS release 6.4 (Final) in /etc/system-release:

cat /etc/system-release
CentOS release 6.4 (Final)

We tried a lot of times and We also tried to search for an answer in the Internet or forum but we didn't find one for this specifc situation.

Can anybody help us?

Best Regards

 

[r.jochum]

Only thing i can think about (untested):

Create container with CentOS 6 -> stop it -> extract data to the rootfs of that container -> start it.

Its worth a try I think.