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Date: Mon, 14 Jul 2008 11:40:30 -0700
From: Jeremy Chadwick <koitsu@FreeBSD.org>
To: Tapan Chaudhari <tapan.list@gmail.com>
Message-ID: <20080714184030.GA62288@eos.sc1.parodius.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Can I change the device of the "/" mount point at boot time.
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On Mon, Jul 14, 2008 at 11:36:52PM +0530, Tapan Chaudhari wrote:
> Hi All,
>     I am new to FreeBSD and this mailing list as well.
> What I want to achieve is change the device of my mount point '/'(or any
> other mount point) after I reboot the machine. I have some knowledge about
> initrd in Linux in which I can change the device for '/' and than reboot the
> machine so that it takes a new device for '/'.
> How can I achieve this in FreeBSD? I am using the latest release 7.0. Any
> pointers will be helpful.

I think you're looking for the loader variables rootdev or
root.vfs.mountrootfsfrom.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |