Solaris Mount NFS 3 using NFS 4 Client

Reconfigure the NFS client on Solaris to force the max. supported version of NFS to NFSv3. You change this by modifying the following line in /etc/default/nfs:

#NFS_CLIENT_VERSMAX=4

to:

NFS_CLIENT_VERSMAX=3

Then issue:

svcadm refresh svc:/network/nfs/client:default 

 Or:

# mount -o vers=3  nfs3.goweekend.ca:/nfsshare /nfsshare