8.4 to 9.2 upgrade

Proxmox 8.4 to the current 9.2.2 is the way to go, 9.1 is possible but quite complicated.

Keep in mind that 7.0 is actually just 6.20 but Linus doesn't like large numbers. ;) So the step is less daunting than it seems.

That said, you can always manually install a 6.x kernel and boot from that if you prefer.
 
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in a production cluster (3 node) it is very difficult to do unknown experiment, and have short windows to do the upgrade, with ceph installed what is the best possible sugestion that is possible ? kindly advise

i have a very bad experience during upgrade from 7.x to 8.x, and the cluster gone down by few days, coz of that experience i am a little bit scared for the upgrade ............
 
I usually full reinstall node by node. Move the VMs, remove the node from cluster, reinstall, add back the node to cluster, move VMs back.

If you enable ZFS replication days in advance the migration is almost instant from one node to another.
 
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i have 8 - 10g nic and 2 - 1 g nic, with a lot of vlan configured, ceph, cluster trafiic are segrigated, open vSwitch is configured on 8 out of 10 nic, i tried to use "pinned your NIC names" and find it very difficult and complicated to configure, if anybody has some easy setup idea , please share, then i can try out.

@proxmox team : is it safe to migrate 8.x to 9.2 with open vSwitch configured or i plan for fresh install, network in the cluster a bit complicated.

is there a way to migrate to SDN to centrally manage the cluster ? this cluster is active since 7.x -
SteveITS said:
The upgrade guide OP posted is fine. The only issue we found was for https://pve.proxmox.com/wiki/Upgrad...Audit_Messages_are_Enabled_During_the_Upgrade, the guide says "excessive logging" which means any on screen prompts scroll off screen after only a few seconds. So I'd strongly suggest disabling that as mentioned.

If you have not yet pinned your NIC names you may wish to do that before upgrading kernels.
Click to expand...
 
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FWIW, I just today upgraded from 8.4.9 to 8.4.14 (or whatever was the latest 8.4) and to 9.2.2 today on two HPE servers (G11 or something, from 2025, with ZFS disks), using the mentioned official 8-to-9 guide. No problems, no need to pin the NIC names, very straightforward IIRC.

There was just an extra question about overwriting or keeping initramfs.conf (or something like that), it was already asked by someone in this forum, but it was not mentioned in the upgrade documentation.
 
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