From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <604dd51b2b8d0085568c0f3fb58a5b0e@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] mount file server
From: "Russ Cox" <rsc@plan9.bell-labs.com>
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Date: Tue, 10 Sep 2002 23:12:30 -0400
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> Is it possible that a terminal or cpu server
> mount a file system other than `filsys main'
> as its root file system?
>
> I am building an environment mixed with 3rd and 4th ed,
> while using a same file server (successfully updated to
> 4th ed. fs kernel) for both editions.
>
> I foolishly booted a 4th ed. terminal from the file server.
> Of course, it didn't boot because the file system `main' had
> (and still has) the 3rd edtition contents.

Yes.  You can set rootspec= and rootdir= in your plan9.ini.

The defaults are of rootspec='' and rootdir=/root.
At boot time, the kernel executes

	mount /srv/boot /root $rootspec
	bind $rootdir /

Russ