Re: [PATCH] ip autoconfig with modules, kernel 2.4

Russell King (rmk@arm.linux.org.uk)
Fri, 11 May 2001 19:38:33 +0100

On Fri, May 11, 2001 at 11:13:00AM -0700, Brian J. Murrell wrote:
> I should have given more information though. My goal is actually to
> NFSRoot the machine being booted. I could not determine a way to get
> the "root path" attribute given by the dhcp/bootp server from
> userspace back to the kernel so that it can
> "change_root()/mount_root()" with it. I seem to recall there was a
> proc interface for doing this at one time (in the 2.2 kernel) but it
> seemed to have went away.

As long as you can get the root server IP and path from the DHCP client,
then you mount it in a directory, and use pivot_root() to change to
that directory.

See the "Changing the root device" of Documentation/initrd.txt for more
information about this.

--
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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