Detecting running version

To verify that the driver is loaded, check if the /sys/module/sunrpc/parameters/nfs_bundle_version exists. The content of the file can be obtained via:

cat /sys/module/sunrpc/parameters/nfs_bundle_version

The content of the file indicates the loaded version. If it does not exist, then either it was not loaded yet, or that the NFS layer that is provided with the installed kernel is loaded instead - in that case the upper directory /sys/module/sunrpc exists.

Document generated on 2025.07.21 14:52 for v4.0.34-21-ga7ed64bc5, branch 4.0