NFS mount Frustration (500 not online)


Renowned Member
Jun 4, 2008
Hi, I have a 'fun' question.

I am trying to mount NFS export to a proxmox host. They are both in 'public' (OVH) hosting so I've setup firewall rules on the NFS server to restrict access to NFS server suitably / allow access only to this client /and restrict ports used to simplify firewall rules.

I can manually mount the NFS export on proxmox command line, thus:

(note IP addresses are fuddled to make less obvious my real public IPs involved)

root@proxmox:/etc/pve# mount  /mnt/pve/nfs-tank2

root@proxmox:/etc/pve# df -h
Filesystem                                                                       Size  Used Avail Use% Mounted on
udev                                                                              16G     0   16G   0% /dev
tmpfs                                                                            3.2G  345M  2.8G  11% /run
/dev/md1                                                                          20G  5.2G   13G  29% /
tmpfs                                                                             16G   40M   16G   1% /dev/shm
tmpfs                                                                            5.0M     0  5.0M   0% /run/lock
tmpfs                                                                             16G     0   16G   0% /sys/fs/cgroup
/dev/mapper/pve-data                                                             1.8T  902G  817G  53% /var/lib/vz
/dev/fuse                                                                         30M   28K   30M   1% /etc/pve
tmpfs                                                                            3.2G     0  3.2G   0% /run/user/0                                                            1.6T   76M  1.6T   1% /mnt/pve/nfs-tank2

and also

root@proxmox:/mnt/pve/nfs-tank2# mount
sysfs on /sys type sysfs (rw,relatime)
.... on /mnt/pve/nfs-tank2 type nfs4 (rw,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=,local_lock=none,addr=

I can then manually setup a proxmox 'directory' type storage and use this and it works fine. But this is horribly kludge klunky.

If I try to add it via the Storage>Add>NFS GUI then I proceed, I tell it advance > NFS version 4.2 > and specify all things correctly. And it gives me error, storage is not online (500)

In my CLI I can confirm that things look OK also thus:

root@proxmox8:/mnt/pve/nfs-tank2# rpcinfo -p

   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100005    1   udp   2000  mountd
    100005    1   tcp   2000  mountd
    100005    2   udp   2000  mountd
    100005    2   tcp   2000  mountd
    100005    3   udp   2000  mountd
    100005    3   tcp   2000  mountd
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100227    3   tcp   2049
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100227    3   udp   2049
    100021    1   udp   2002  nlockmgr
    100021    3   udp   2002  nlockmgr
    100021    4   udp   2002  nlockmgr
    100021    1   tcp   2001  nlockmgr
    100021    3   tcp   2001  nlockmgr
    100021    4   tcp   2001  nlockmgr

I am just wondering if this sounds familiar in any way to anyone.

it is driving me up the wall.


Our code uses "showmount" to check if the server is online. So what is the output of

# /sbin/showmount --exports <server>
Hi, thanks for the reply.

Here is output:

root@proxmox:~# /sbin/showmount --exports
clnt_create: RPC: Program not registered


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