From: miller@hamnavoe.demon.co.uk miller@hamnavoe.demon.co.uk
Subject: unmounting
Date: Thu, 21 Nov 1996 11:41:12 +0000 [thread overview]
Message-ID: <19961121114112.KKtyLCKrCGtvYdP9-SbzpF24ThEirOMxROxnGsnpSfY@z> (raw)
A clue to the reason why
bind -a '#|' /net
unmount '#|' /net
gives the result
unmount: not in union
can be found by performing the experiment
ls -qd '#c'; ls -qd '#c'; ls -qd '#|'; ls -qd '#|'
which gives the result
80000000 0 .
80000000 0 .
80002e00 0 pipe
80002e40 0 pipe
Note that the qid (which uniquely identifies a file on a given server)
is consistent for the console device, but different each time for the
pipe device. Each reference to '#|' is creating a new pipe, which
is why the unmount doesn't work -- the '#|' in the unmount command
refers to a different file from the '#|' in the mount command.
-- Richard Miller
next reply other threads:[~1996-11-21 11:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-11-21 11:41 miller [this message]
-- strict thread matches above, loose matches on Subject: below --
1996-11-21 9:00 unmounting Nigel
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