From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <1f229e0b2b861ffeebd62738b74c9cd3@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] union directories
From: "Russ Cox" <rsc@plan9.bell-labs.com>
In-Reply-To: <Pine.SOL.3.96.1030228135006.4066E-100000@robin.cooper.edu>
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Date: Fri, 28 Feb 2003 13:56:18 -0500
Topicbox-Message-UUID: 75c14d52-eacb-11e9-9e20-41e7f4b1d025

You used to need to say "bind foo foo" to set up a mount
point for future union mounts.  (A long time ago.)
Now the system inserts these for you, though they're
still visible in the /proc/$pid/ns file (and thus the
output of ns).

Bind -bc 9 9 is a different thing, and almost
certainly not what is wanted, especially in the
example given -- it doesn't have any effect except
to make everything appear twice in the directory.
(Bind -bc 9 9 is like:

	bind 9 9
	bind -bc 9 9

hence everything appears twice.)

Russ