Proxmox+FreeNas - Bad magic number in superblock :)

[padi]

Hello,

I tried to migrate one vm from a node to another and something goes wrong

My OS HDD, which is a zvol from FreeNas seems as an empty disk with no partition table on it.

I tried to:
- fsck
- insert CentOS cd > Troubleshooting > boot an existing system > No Linux partition is present
- e2fsck
- dumpe2fs -h /dev/sdb
- testdisk
- oter cmds, was a long night

Any ideas on how to get back the disk?

Thanks,
Adrian