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Re: [PATCH] GRUB2 does not provide Multiboot Legacy memory map

From: Thomas Schwinge
Subject: Re: [PATCH] GRUB2 does not provide Multiboot Legacy memory map
Date: Sat, 19 Apr 2008 23:32:17 +0200
User-agent: Mutt/1.5.11


On Sat, Apr 19, 2008 at 03:11:43PM -0600, Julian Salazar wrote:
> I'm developing a small kernel and I've been using GRUB2 with the Legacy
> Multiboot Specification for some time now. I've noticed that it does not
> provide some of the things in the Multiboot Information structure that GRUB
> Legacy does, like the memory map. So I've created a small patch which works
> in QEMU and real hardware so that GRUB2 will pass the memory map to my
> kernel or any multiboot-compliant kernel for the i386-pc.

Now this is interesting as I've just today seen an incompatibility
between booting a multiboot kernel with GRUB legacy and GRUB2.  It might
actually be the same issue, but I didn't fully investigate yet.
Therefore I'm quite interested in seeing your patch.

> Since I've never actually contributed code to a GNU project before, are


> there certain rules and regulations of some sort that I have to comply with

Your guessed right: sure there are :-).  See, for example, (parts of) the
GNU Coding Standards, <>.
Not everything is relevant in your case, though.

> before I can send my patch here?

Feel free to simply send it here and we'll tell you what needs to be


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