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"vmount: operation not permitted" Error From Linux NFS Server

Question & Answer


Question

When nfs mounting from a Linux NFS server, customer gets the following error: vmount: operation not permited

Answer


Environment

AIX versions 4.x and 5.x

Sometimes Linux NFS servers will do port checking and require that the NFS client use a reserved port.

     nfso -o nfs_use_reserved_ports=1

If the mount is going to be permanent, then the change needs to survive across a reboot. The nfs option must be changed permanently. On AIX 4.x and 5.1, the command above should be added to the startup scripts (possibly /etc/rc.nfs). On AIX 5.2 and above, the change can be made permanent by adding the -p flag.

     nfso -p -o nfs_use_reserved_ports=1

[{"Product":{"code":"SWG10","label":"AIX"},"Business Unit":{"code":"BU009","label":"Systems - Server"},"Component":"Network communications","Platform":[{"code":"PF002","label":"AIX"}],"Version":"5.3;5.2;5.1;4.3","Edition":""}]

Historical Number

isg1pTechnote1352

Document Information

Modified date:
17 June 2018

UID

isg3T1000590