Proxmox backup server 1.1/2.2 and proxmox 6.4/7.2 compatibility


Jan 19, 2021

we started the proxmox live upgrade from 6.4 to 7.2.

During the migration we have proxmox 6.x and 7.x proxmox nodes inside the same proxmox cluster.

Will pbs 2.2 back proxmox 6.4 hosts with pb client 1.1 up?

Will pbs 1.1 back proxmox 7.2 hosts with pb client 2.2 up?

Or should we have both pbs 1.1 and 2.2 present during the migration?
as long as you don't use features that require a 2.x client or server (like namespaces) you can either upgrade the PBS server before or after upgrading your PVE cluster, and backups should continue to work.
So, we can just upgrade pbs to 2.2 and the usual backups both from proxmox 6.x and 7.x will continue to work?
yes, PBS 1.x clients (as included in PVE 6.x) are compatible with PBS 2.x severs (and obviously, 2.x clients as included in PVE 7.x as well ;))


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get your own in 60 seconds.

Buy now!