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Re: Adapting GRUB to boot directly from RAM in protected mode


From: Uwe Hermann
Subject: Re: Adapting GRUB to boot directly from RAM in protected mode
Date: Tue, 13 Feb 2007 20:41:10 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

Hi,

On Thu, Feb 08, 2007 at 11:25:15AM -0800, Patrick Connolly wrote:
> Can anyone think of a straightforward way to modify GRUB to boot a linux
> kernel directly from RAM in protected mode?
> 
> We have an embedded system with a special BIOS that places a file (any file)
> at a fixed location in RAM and executes it (in protected mode) starting at
> that same fixed location.  We'd like the file to be a linux kernel (with
> boot code) and we're wondering if GRUB could be adapted to do this.  We
> realize that some assembly-level modifications would be needed but we aren't
> sure how extensive those modifications might be expected to be.

You might want to have a look at LinuxBIOS, it seems like it can do what
you want: http://linuxbios.org


HTH, Uwe.
-- 
http://www.hermann-uwe.de  | http://www.holsham-traders.de
http://www.crazy-hacks.org | http://www.unmaintained-free-software.org

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