How to get nfs debugging information.

Craig White craigwhite at
Thu Mar 31 17:23:32 UTC 2005

On Thu, 2005-03-31 at 10:49 -0600, akonstam at wrote:
> We have 50 or so machines doing mounts of home directories from an nfs
> server. But we are having problems with three machines that sometimes
> can mount and sometimes can't. We get a mount authorized message but
> no mount occurs.
> I would like to know how to get more debugging information from the
> nfs mounting process. Is the --debug all on rpc.mountd useful in this
> regard? Is there something else we can do.
> Let me say parenthetically that machines having trouble mounting are OS
> X machines but this is a Fedora list so I don't request OS X help (but
> it would be accepted). The focus of my question is how to get more
> information for debugging problems with the nfs mount from the nfs
> server?
there are bugzilla entries for NFS issues that seem to persist still
with the 2.6 kernels - at least as supplied by Red Hat

You might want to find them and see if they fit your circumstances and
weigh in


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