systemctl stop pve-cluster
rm -f /var/lib/pve-cluster/.pmxcfs.lockfile
systemctl start pve-cluster
systemctl stop pve-cluster corosync
pmxcfs -l
rm /etc/corosync/*
rm /etc/pve/corosync.conf
killall pmxcfs
systemctl start pve-cluster
pvecm delnode proxmox (proxmox имя ноды)
Полностью удалить
/etc/pve/nodes/<имя_ноды>/
killall -9 corosync
systemctl restart pve-cluster
systemctl restart pvedaemon
systemctl restart pveproxy
systemctl restart pvestatd
cluster not ready - no quorum? (500)
pvecm expected 1