Mountd inconsistent error messages on nfsv4 mount
Felix Winterhalter
felix at audiofair.de
Tue Oct 2 12:06:52 UTC 2018
I am currently trying to set up nfsv4 exports on one of our servers.
I found out that the mountd output for denied mount requests is a bit weird.
For example my exports file looks like this:
V4: /shareroot clients
/shareroot -alldirs clients
Which would export the shareroot to the netgroup clients.
So far so good. Mounting this directory works also fine from clients.
Now if I try to mount a directory which does not exist with a mountline
like this:
mount -t nfs4 server:/directorywhichdoesnotexist
I get an error in mountd along the lines:
mountd[8274]: mount request denied from :: for /directorywhichdoesnotexist
which is a bit hard to debug especially with multiple trees. I would
have expected mountd to know about the V4 root and printed it
accordingly as:
mountd[8274]: mount request denied from :: for
/shareroot/directorywhichdoesnotexist
Is there any reason why it doesn't do that?
This also happens when a subdirectory does not exist. It maps the
complete tree back to / instead of the V4 root.
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