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Re: CD-ROM booting staus update

From: Uwe Hermann
Subject: Re: CD-ROM booting staus update
Date: Wed, 4 Jul 2007 21:47:52 +0200
User-agent: Mutt/1.5.16 (2007-06-11)

On Tue, Jul 03, 2007 at 11:14:40PM -0400, Alex Roman wrote:
> On 28/06/07, Alex Roman <address@hidden> wrote:
>> That being said, I will clean up the code I have so far and send it as
>> a patch for review ASAP (tonight or tomorrow latest)...
> I've cleaned up the code and created a patch which will enable allow
> booting from the first CD-ROM on a system. This is my first patch so I
> checked my code many times... hopefully it won't cause unwanted side
> effects, and hopefully my patch is in the correct format.
> This patch adds support for CD-ROM devices in biosdisk.c (cd0, cd1,
> etc). It also adds 2 new files, eltorito.c and .h which implement a
> command which will boot from the first CD-ROM device, cd0.

Quick question:

Does the code require a BIOS to work, i.e., do you rely on BIOS
callbacks in the CDROM code? It would be great if you would _not_ do
that, but instead use/write a small CDROM driver which directly accesses the
hardware. This would make it possible to use grub2 with modern firmware
implementations such as LinuxBIOS (, which do not
provide the legacy BIOS callbacks. Let the BIOS die it's well-deserved death.

Thanks for considering, Uwe.
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