Emergency !!!Help Please--- NFS

Hi Guru's,

I am unable to mount NFS share on unix system (DG/UX) which is nfs client.

Error:

mount: /nfsshare: Invalid argument
mount: giving up on:
/mountpoint

i tried following commands

mount -t nfs remotehost:/nfsshare /mountpoint

Error:

mount: /nfsshare: Invalid argument
mount: giving up on:
/mountpoint

there is no entry of this in /etc/mnttab.

rebooted but no use :wall:

i tried below mount -o remount

error:-

mount: remotehost:/nfsshare /mountpoint: Device busy
mount: giving up on:
/nfsshare

this is my first post, apologies if i posted in wrong section, quick reply is more apriciated...

thanks in advance.

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