My implementation of the grub2 boot rom

My implementation of the grub2 boot rom

[Bean]

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Hi,

I've written my own code for grub2 boot rom, the steps are:

1, Use make to compile romboot.S and grub-mkrom.c, it will generate
romboot.img and grub-mkrom.
2, Create kernel image core.img with grub-mkimage
3, Create rom image with grub-mkrom, like this:

grub-mkrom romboot.img core.img output_file

grub-mkrom support the following options:

 -m message         Boot message
 -t timeout            Timeout in seconds
 -k key                Hotkey
 -x edx                Value of EDX

default hotkey is SPACE, default timeout is 2 seconds.

The new code is much smaller than the romos version (only 240 bytes),
and it runs grub2 after POST, so that int 13 can be used to access the
disk.

-- 
Bean

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Re: My implementation of the grub2 boot rom

[Robert Millan]

Hi Bean,

It appears this has been overlooked for quite a while.  If you could resync
and re-send it as a patch, I'll be glad to review and see about getting it
merged.

On Mon, Dec 03, 2007 at 04:19:12AM +0800, Bean wrote:
> Hi,
> 
> I've written my own code for grub2 boot rom, the steps are:
> 
> 1, Use make to compile romboot.S and grub-mkrom.c, it will generate
> romboot.img and grub-mkrom.
> 2, Create kernel image core.img with grub-mkimage
> 3, Create rom image with grub-mkrom, like this:
> 
> grub-mkrom romboot.img core.img output_file
> 
> grub-mkrom support the following options:
> 
>  -m message         Boot message
>  -t timeout            Timeout in seconds
>  -k key                Hotkey
>  -x edx                Value of EDX
> 
> default hotkey is SPACE, default timeout is 2 seconds.
> 
> The new code is much smaller than the romos version (only 240 bytes),
> and it runs grub2 after POST, so that int 13 can be used to access the
> disk.
> 
> -- 
> Bean


> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> http://lists.gnu.org/mailman/listinfo/grub-devel


-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."