How to remove cluster from proxmox?
Execute the following commands via proxmox shell or ssh terminal(recommened). In this way you don't have to empty all VMs from a node before removing a cluster from it. # sudo systemctl restart pve-cluster # sudo pmxcfs -l [main] notice: forcing local mode (although corosync.conf exists) # sudo rm -f /etc/pve/cluster.conf /etc/pve/corosync.conf # sudo rm -f /var/lib/pve-cluster/corosync.authkey # sudo systemctl stop pve-cluster # sudo rm /var/lib/pve-cluster/.pmxcfs.lockfile # sudo systemctl restart pve-cluster # sudo systemctl restart pvedaemon # sudo systemctl restart pveproxy # sudo systemctl restart pvestatd