NFS mount error

Technote (troubleshooting)


When nfs mounting from a Linux NFS server, customer gets the following

vmount: operation not permitted


Unable to mount the remote filesystem.


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


AIX versions 4.x and 5.x.

Resolving the problem

Here is an example using a reserved port mount option.

root@lpar3:/ # mount /mnt
mount: 1831-008 giving up on:
vmount: Operation not permitted.

root@lpar3:/ # nfso -o nfs_use_reserved_ports=1
Setting nfs_use_reserved_ports to 1
root@lpar3:/ # mount /mnt

To make this setting permanent use the nfso '-p' switch or add it to /etc/rc.local.

More information is available in the link referenced below.

Related information

"vmount: operation not permitted" Error From Linux NFS

Cross reference information
Segment Product Component Platform Version Edition
Systems and Asset Management IBM Service Delivery Manager Not Applicable AIX, Linux 7.2.2, 7.2.1, 7.2.4

Document information

More support for:

Tivoli Service Automation Manager

Software version:,, 7.2.3, 7.2.4,,,,,

Operating system(s):

AIX, Linux

Reference #:


Modified date:


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