From owner-freebsd-arch  Tue May 21 17:33:12 2002
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To: Maxime Henrion <mux@freebsd.org>
Cc: arch@freebsd.org, Terry Lambert <tlambert2@mindspring.com>
Subject: Re: a virtual fs to allow root mounting of any fs without special code 
In-Reply-To: Your message of "Tue, 21 May 2002 15:57:14 PDT."
             <20020521225713.GJ496@elvis.mu.org> 
Date: Wed, 22 May 2002 01:33:02 +0100
From: Ian Dowse <iedowse@maths.tcd.ie>
Message-ID:  <200205220133.aa58608@salmon.maths.tcd.ie>
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In message <20020521225713.GJ496@elvis.mu.org>, Maxime Henrion writes:
>There is however one thing I could do to simplify rootfs even more,
>which is before mounting the real fs on /, do a lookup for /dev, retain
>the vnode, then mount the real fs normally on /, and call dounmount() to
>unmount the devfs under it after this.  This could reduce rootfs to a
>2-vnodes filesystem but I didn't test it yet.

Of course, one further simplification would be to do away with
rootfs entirely; mount devfs on /, create a "dev -> ." symlink
within devfs, mount the real root, and then unmount the underlying
devfs :-)

Ian

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