Before you can dismount an NSS volume on Linux, you must dismount the volume from NCP™ Server; otherwise, the dismount function fails.
If NCP Server is running, dismount the volume from NCP Server.
At the server prompt, open the NCP Console by entering
Dismount the volume from NCP.
The volume is no longer accessible or visible to NCP clients.
Dismount the volume.
From a terminial console: In NSSMU, select.
In the Volumes list, select the encrypted volume that you want to dismount.
Select or pressto dismount the mounted volume.