Troubleshooting
Problem
When attempting to mount a Network File System (NFS) from a Red Hat Enterprise Linux 6 host, the following error may be seen: mount.nfs4: Operation not permitted
Resolving The Problem
Source
RETAIN tip: H203203
Symptom
When attempting to mount a Network File System (NFS) from a Red Hat Enterprise Linux 6 host, the following error may be seen:
| mount.nfs4: Operation not permitted |
Affected configurations
The system may be any of the following IBM servers:
- IBM System Cluster 1350, type 1410, any model
The system is configured with at least one of the following:
- Red Hat Enterprise Linux 6, any update
This tip is not option specific.
Note: This does not imply that the network operating system will work under all combinations of hardware and software.
Please see the compatibility page for more information:
Workaround
This is a configuration issue. A required parameter needs to be added to the file /etc/exports to define the root file system for mounting.
The parameter that needs to be added follows:
| fsid=0 |
An example line would look like the following:
| /storage *(rw,fsid=0,sync,insecure_locks,insecure,no_root_squash) |
Additional information
NFSv4 works differently and no longer references the root of the file system but instead requires the root to be defined with fsid=0.
If fsid=0 is not present, permission will never be granted for the file system to be mounted.
Document Location
Worldwide
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Document Information
Modified date:
30 January 2019
UID
ibm1MIGR-5088115