From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <85849fda1e2bd3d6043870d78701635e@coraid.com>
From: erik quanstrom <quanstro@coraid.com>
Date: Mon, 28 May 2007 07:17:15 -0400
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Newbie question
In-Reply-To: <1827fc0297656acfbecc068e873dca79@orthanc.cc.titech.ac.jp>
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from mount(1):
> A mountpoint can surely accept multiple binds/mounts with "-c", can't it?

         -c        This can be used in addition to any of the above
                    to permit creation in a union directory.  When a
                    new file is created in a union directory, it is
                    placed in the first element of the union that has
                    been bound or mounted with the -c flag.  If that
                    directory does not have write permission, the cre-
                    ate fails.

you can do it, but it doesn't make any sense.  only the last element
added will be placed first in the union and thus writable at the root.

- erik