renaming nodes

Hi, So I followed these steps to rename the host and rebooted but now I somehow have 2 nodes. My VMs are on the hostname with the old node. How can I get them on the new hostname the safest way possible? Old hostname: pve New hostname: nas-proxmox I also wanted to join the nodes after...

I have a 4-node cluster in my homelab. I want to rename two nodes, and also delete a third node (originally created for quorum purposes only). What is the best way to proceed? I could migrate all VMs and CTs to the one node that won't be renamed, remove all the others, rename two of the nodes...

Minor problem: I may have mismanaged renaming a new PV server. To upgrade an existing PV host to PV 5.2 I had our network folks assign a new physical computer a temporary name in our campus DNS, then ran a clean PVE 5 install on it. I copied over my VM snapshot files, unpacked and ran one...