According to wiki , it is tested (and supported) to add pve5.x nodes to pve4.x cluster. Perhaps you will have to upgrade the existing cluster first to the latest version (4.4) , then proceed to the addition of the pve5.2 node(s).Moreover it is also stated, that this should be used as an intermediate step, before upgrading all cluster nodes to v5.2 and not as a permanent setup.
 https://pve.proxmox.com/wiki/Upgrade_from_4.x_to_5.0#Caveats_to_know_before_you_start On Thu, Apr 12, 2018 at 7:35 PM, JR Richardson <jmr.richard...@gmail.com> wrote: > Hi All, > > > > I'm in the middle of adding some compute nodes to an existing cluster. I > was > certain I could add a newer 5.x node to existing 4.1 cluster bit I get > error > with some script deprecations in perl. > > > > Should I build new compute nodes as 4.1, join to the cluster, then once all > nodes are added, do the upgrade of all nodes to 5.2? Or is there a work > around to adding a 5.2 node to a 4.1 cluster? > > > > Best practice? I have to add more compute nodes for migrating VMs around to > release existing 4.1 compute nodes so I can do the upgrades to 5.2. > > > > Thanks. > > > JR > > > > JR Richardson > > Engineering for the Masses > > Chasing the Azeotrope > > > > _______________________________________________ > pve-user mailing list > firstname.lastname@example.org > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user > _______________________________________________ pve-user mailing list email@example.com https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user