Hi everyone, I would like to upgrade my 3-node cluster from version 8.4 to 9, but I'm reading around that it's better to also upgrade the PBS. Could someone suggest which of the two I should upgrade first, upgrade the nodes first and then the PBS, or vice versa? First the PBS and then the nodes?
I recommend upgrading from 8.4 to 9.
- Thread starter toto-ets
- Start date
It's only necessary when you co-install PBS with PVE (on the same system). If PBS runs on another computer, in a container or in a VM then you can update either whenever you want as PVE 9 works fine with PBS 3 and PBS 4 works fine with PVE 8. But if then are installed on the same (bare-metal) computer they share the kernel and the Debian user system and you should update both.
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No, my PBS is installed on a dedicated machine, where only PBS runs, so do you recommend that I update all the nodes first, and then the PBS later? And if something goes wrong, can I always restore my VMs from my PBS that hasn't been updated yet?
Then it does not matter in which order you upgrade. And you don't have to update PBS and/or PVE any time soon, either. Just do what you think is best before August 2026.
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Personally, I first did an in-place upgrade of PBS, and then one node at a time of Proxmox, taking care to move the VMs to the remaining nodes first.
I followed the official guide:
https://pve.proxmox.com/wiki/Upgrade_from_8_to_9
and everything went smoothly.
I followed the official guide:
https://pve.proxmox.com/wiki/Upgrade_from_8_to_9
and everything went smoothly.