[SOLVED] mount.nfs error after joining cluster (new node can not access existing node nfs)


New Member
Oct 23, 2019
I had a single standalone pve installation doing backups on NFS. No problem on backup or restore.
I had converted this standalone node into a cluster and successfully added a second proxmox node. I am able to run VMs and Containers and migrate between them, so everything in terms of cluster seems to be working fine. I am not using ZFS or any shared storage for VMS or containers, just NFS for backup

Now i am trying to restore ion the pmx2 node a NFS backup done from pmx1 node, but when i try to restore, i see no option to pickup the restore node

When i check pmx1 i see NFS storage as nfs_shared_name(pmx-1)
When i check pmx2 i see NFS storage as nfs_shared_name(pmx-2) with question mark, and if i access it, i get an error in the WEBUI

"mount error: mount.nfs: Protocol not supported"

Both nodes are running pve6, both are updated to the last versions (community), both servers have access to nfs server with exactly the same permissions configuration.
i am able to mount via shell directly the nfs share into the pmx-2 node and access its contents.

any ideas?
I suppose i could always do a restore using cli, but i 'd prefer to find out why it is not working at WEbUI level
hmm - any messages in dmesg on the second node (the one where the mount of the NFS fails)?
any messages in the journal regarding why the mount failed?

maybe there's a mismatch between the installed kernel and the running kernel - have you done a reboot recently?

I hope this helps!
@Stoiko Ivanov Thanks, the server was rebooted several times before and after; it was clearly no mismatch between kernel and modules as i was able to mount directly the nfs share via command line.

Anyway, removing the nfs share from WEB UI and adding it again worked, so issue solved.
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Reactions: Stoiko Ivanov
Glad you found a way to resolve the issue - please mark the thread as 'SOLVED' - it helps others with similar problems
Sorry if the question sounds stupid, but how do i mark the question as solved? Is it a tag? i do not see any option for this
Sorry if the question sounds stupid,
Not at all! - It is (sadly) somewhat hidden -> click on 'More Options' (the 3 dots ...) above the first post -> Edit Thread and select the 'SOLVED' prefix

for the next time :)


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