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Date: Mon, 14 Jul 2008 22:57:48 +0200
From: "Mateusz Guzik" <mjguzik@gmail.com>
To: "Tapan Chaudhari" <tapan.list@gmail.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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2008/7/14 Tapan Chaudhari <tapan.list@gmail.com>:
>
> Hi,
>   Thanks a lot Mike. But the problem is the device I am talking about is
> not the physical device. I am writing a driver which will create a virtual
> device and all the i/os done on this virtual device will be ultimately
> redirected to the original device. Correct me if I am wrong, but I guess the
> loader will try to mount my new device on '/' and then load the modules into
> the kernel. Since my driver would not be loaded at that point in time, it
> will fail to even mount '/'. Am I right? Or can our drivers get loaded
> before loader mounts '/' ?

Yes, take a look at /boot/loader.conf .