[SOLVED] Snapshoting PXE before upgrade

[pep]

Hi,

I've setup a proxmox on raid-1 with ZFS and wonder if there is somewhere some wiki/doc how to snapshot the server before doing the upgrade.
I mean snapshoting the OS.
It is a production server so I want to be able to rollback if anything goes wrong.

What would be the step to follow, shoudl I shutdown the VMs or I can do this in realtime?

 

[LnxBil]

Simplest thing to do is:

zfs snapshot -r rpool@before-dist-upgrade