-conflicts about identical VM IDs. To workaround, use vzdump to backup
-and to restore to a different VMID after adding the node to the
-cluster.
+conflicts about identical VM IDs. Also, all existing configuration in
+'/etc/pve' is overwritten when you join a new node to the cluster. To
+workaround, use vzdump to backup and restore to a different VMID after
+adding the node to the cluster.