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Re: grub disk-image builder.

From: Robert Millan
Subject: Re: grub disk-image builder.
Date: Thu, 24 Jan 2008 13:07:40 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

On Thu, Jan 24, 2008 at 01:21:18AM +0100, Franklin PIAT wrote:
> I've just had a look at yesterday's commit, which introduces --overlay.
> great ! (Debian's Unstable is a few day behind cvs)
> Since I wanted to test splashscreen, I needed to put unicode.pff
> (1480KiB) + a tga image (1200KiB uncompressed)... That's why i came up
> with hard disk images.
> But now, with RLE'd TGA, JPEG and PNG, 2.88MiB floppy should do in most
> case (I haven't tested it).

Unfrotunately it can't use more than ~600 kiB without overwriting the vga
region (and others), so this is prevented in grub-mkimage.

This limitation can be resolved by putting the filesystem at the beginning
of the device, and moving our code out of the way, just like we do for normal
boot from hard disk.

You should be able to do this with grub-install (either on floppy or bigger
devices).  Does this work for you?

Robert Millan

<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call… if you are unable to speak?
(as seen on /.)

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