Mount NFS Fails with "mount.nfs: portmap query failed: RPC: Timed out"

(Doc ID 2315299.1)

Last updated on OCTOBER 10, 2017

Applies to:

Linux OS - Version Oracle Linux 6.0 and later
Linux x86-64

Symptoms

Unable to mount NFS share Oracle Linux servers , and the mount fails with below errors:

# mount -v <ip>:/path/to/NFS
mount.nfs: trying text-based options 'bg,hard,nointr,rsize=32768,wsize=32768,tcp,actimeo=0,vers=3,timeo=600,addr=<ip>'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: portmap query failed: RPC: Timed out


But mount the same NFS share with vers=4 (NFSv4) works without problem.

Changes

 

Cause

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