I'm currently migrating an old server (debian 6 + openvz) to proxmox 5.
The old vzdump script generates .tgz files that are not recognized by proxmox 5 pct restore command.
Simply rename them to .tar.gz !
I have an old openvz based setup which I want to migrate to proxmox 4 (and LXC).
I've backuped a test VM using vzdump, but when I restore on my proxmox 4 node, I get the following:
root# pct restore 101 vzdump-openvz-101-2016_02_21-15_40_41.tar
unable to create image: qemu-img: Image size must...