IBM Support

Unable to Mount From Openbsd NFS Server

Question & Answer


Question

An NFS server was changed from freebsd to openbsd. Now when trying to NFS mount onto the AIX server from the Openbsd server, the following error is displayed: mount 1831-008 giving up on vmount there is an input or output error nfs: fsinfo failed for server 192.0.0.2 error 7 rpc authentication error The server has been modified to expect communications on reserved ports.

Answer

Unable to Mount From Openbsd NFS Server

Environment

AIX 5.1 and later

AIX NFS client or clients need to be modified to communicate with NFS server over reserved ports by running the following commands:

  1. Set the NFS option on client to use reserved ports: 
         nfso -o nfs_use_reserved_ports=1
  2. Now try to NFS mount again: 
         mount <server>:/<export> /mnt

    The mount command should have succeeded.

  3. To ensure the nfso option will be set again at reboot, enter the following:

    For AIX 5.1 and lower: 

         echo "/usr/sbin/nfso -o nfs_use_reserved_ports=1" >> /etc/rc.net
     tail /etc/rc.net

    For AIX 5.2 and higher: 

         nfso -p -o nfs_use_reserved_ports=1
[{"Product":{"code":"SWG10","label":"AIX"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Network communications","Platform":[{"code":"PF002","label":"AIX"}],"Version":"5.3;5.2;5.1","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Product":{"code":"SWG10","label":"AIX"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Process and memory management","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Historical Number

isg1pTechnote0770

Document Information

More support for:
AIX

Software version:
5.3, 5.2, 5.1

Operating system(s):
AIX

Document number:
669543

Modified date:
17 June 2018

UID

isg3T1000452

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