During adding node to cluster: "pve cluster filesystem not online"

ralph42

New Member
Nov 4, 2025
6
0
1
Again, I tried to add a 4th node to my 3-node cluster. fresh hardware, fresh setup of Proxmox. Updated to the current version.

When joining the cluster, I have the same result like a few days ago: The node appears in the tree, but the "Join CLuster" task fails. Then the cluster crashes, until I shutdown the new node and "pvecm delnode nodename".

On the new node, I had a look at journalctl. After some complains "[quorum] crit: quorum_initialize failed" I found:
"replication: cfs_lock 'file-replication_cfg' error: pve cluster filesystem not online.
There are futher lines about that, but then comes the line I was talking about a few days ago:
"unable to create '/etc/pve/nodes' - Permission denied" - which is also the message shown in the web frontend.

If I understand that correctly, "Permission denied" is a bit misleading. If the filesystem is not available, nothing can be written and joining the cluster fails.

After rebooting of course there is a filesystem available again and I can see that /etc/pve/nodes is empty on the new node.

Ok, an ideas?