Remove a node from the proxmox cluster and then rejoint with same name Let’s say that for this example, our node name pve03.

  • Shut down node.

  • Remove node

    Enter the shell of another node in the cluster

      pvecm delnode pve03

  • Remove node

    Again from other node:

      rm -r /etc/pve/nodes/pve03

  • Remove node entry(ies) from authorized keys file

      nano /etc/pve/priv/authorized_keys

    remove the line associated with our node, ending with pve03

  • Reboot all nodes

  • Install node and rejoin to cluster