If you have ever tried to mount a Linux NFS share on a Solaris workstation you may have seen the below error.
solaris1# mount t3-61.abc.com:/exports/homes /mnt
nfs mount: mount: /mnt: Not owner
This may be caused by the Solaris system attempting to mount the exported file system running NFS version 4 instead of version 3. The problem can easily be corrected by passing the vers=3 option when mounting the file system.
mount -o vers=3 t3-61.abc.com:/exports/homes /mnt
Additionally you could add the option into the auto_master map if the problem is coming from automount operations.
/mount_point map_name -rw,vers=3
If you want the change to be system wide you could edit the /etc/default/nfs file and set the max version:
NFS_CLIENT_VERSMAX=3