Uncrossable Mount Points

[Michael P. Reilly]

>From Thor Lancelot Simon <lancelot at spock.uucp>:
> ... To root (UID 0) the file systems behave normally.  To a
> normal user, once one has cd'ed to /usr/local, it is impossible to cd .. -
> impossible to cross the mount point.  'df .' from /usr/local yields
> "Could not find mount point for ."  We export the /usr/local filesystem to
>a number of other machines, and on those machines, the mount point is crossable
> which makes me feel that the problem must lie with the /usr filesystem on the
> server.  Can anybody shed some light on this?  All the filesystems in question

Hello Folks,
  I don't have any experience with SPARCstations, but I do run a SUN3/60 here,
and have come across a similar problem (though on an AT&T 3b1). It sounds to
me like the /etc/mtab file has the wrong access permissions (since root's
processes can read the file, root can find the mount point). The only other
explaination I can think of is that the kernal is not maintaining it's tables,
which would require another doconfig (rebuild). I hope this helps.
			Michael Reilly
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