Can I change the device of the "/" mount point at boot time.

[Tapan Chaudhari]

Thank You Mateusz and Mike. I guess I am clear with my doubt now. I will
also go through the man pages to go into depth of it.


Thanks,
--Tapan.

On Tue, Jul 15, 2008 at 2:27 AM, Mike Meyer <mwm at mired.org> wrote:

> On Tue, 15 Jul 2008 01:40:24 +0530
> "Tapan Chaudhari" <tapan.list at gmail.com> wrote:
>
> > 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 '/' ?
>
> You gotta keep your "/"'s straight. The kernel will boot of off a
> physical devices - pretty much required.  At that point, you can use
> boot.config to load modules from that device, including any needed to
> keep your driver happy. Set the vsf.root.mountfrom to tell the kernel
> what where to find what's going to become the root file system when it
> gets to that point.
>
> The process is documented in the man pages, starting with say
> boot(8). Read through that and some of the "SEE ALSO" pages.
>
>         <mike
> --
> Mike Meyer <mwm at mired.org>
> http://www.mired.org/consulting.html
> Independent Network/Unix/Perforce consultant, email for more information.
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