cloning vm with snapshots

[karpa13a]

Hi all! Is there a way to create a clone of a VM including all its snapshots?

0. i have VM with pack of snapshots, i would to clone it, to test some upgrades.

here's what I tried:
1. create clone from "current" snapshot
2. copy all vm-xxx-state-* files to new VM
3. copy/paste config part from original VM, with replacing name, net0, virtio0, virtio0, vmgenid by proper values from new VM/location

GUI now sees snapshots, but, unable to restore with the error "qemu-img: Could not apply snapshot '123': Failed to load snapshot: No such file or directory"
console command, to check list of snapshots "/usr/bin/qemu-img info /var/lib/vz/images/112/vm-112-disk-0.qcow2" provides nothing, so, seems i missed smth
112 - fresh clone

Can you advise please, how to clone VM with all snapshots?

Proxmox VE 6.1-7
simple all-in-one node: no clustering, ceph and other magic)

 

[fiona]

Hi,
AFAICT it's not possible to transfer all the snapshots to the clone using PVE's API. The problem is that the cloned disks do not contain the snapshots anymore so a roll-back isn't possible.

But the following should work: besides what you already did, you also have to copy the disks including the snapshots to the new VM. For qcow2, a simple cp should be enough, for ZFS, use send/recv.

 

[karpa13a]

@Fabian_E you are right:
need to copy original main disk from disabled vm and all the snapshots, to make this "feature" works. of cource with replacing storage/mac/vmgenid in clonded config (original config copy-pasta).

it works)