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

[Hollis Blanchard]

On Thu, 2007-02-08 at 11:25 -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 should be able to easily write a simple loader for GRUB2. No idea
about GRUB Legacy.

-Hollis