Hi, I have two clusters: old_cluster Promox 4.4 with 4 nodes new_cluster Proxmox 5.2 with 1 node I want to migrate all nodes in new_cluster and I know how to do that: backup all VMs of a node remove node from old_cluster upgrade node to Proxmox 5.2 add node to new_cluster I just have a question mark about the step after I have removed the node. I want to keep the same hostname and ip of each node, but as described in the documentation to remove a node from a cluster, there is a warning: ATTENTION: at this point you must power off the node to be removed and make sure that it will not power on again (in the network) as it is. How can I proceed without completly reinstalling the node ? Regards, Christian.
Well, just don't reinstall it. Turn off the old node, change another node's IP address after the VMs have been moved and maybe do an ARP flush.
Hi, The best solution is to upgrade the old cluster to the current PVE 5.2 and after the cluster is upgraded add the new node to the cluster. https://pve.proxmox.com/wiki/Upgrade_from_4.x_to_5.0
Thanks for your replies. I will follow Wolfgang's solution and upgrade the old cluster. Best regards, Christian
