From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.33) id 1C2QYv-0003Re-Hh for mharc-grub-devel@gnu.org; Wed, 01 Sep 2004 04:33:49 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33) id 1C2QYu-0003RN-4x for grub-devel@gnu.org; Wed, 01 Sep 2004 04:33:48 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33) id 1C2QYt-0003Qp-1e for grub-devel@gnu.org; Wed, 01 Sep 2004 04:33:47 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1C2QYs-0003Qm-TW for grub-devel@gnu.org; Wed, 01 Sep 2004 04:33:47 -0400 Received: from [212.43.237.68] (helo=kotoba.storever.com) by monty-python.gnu.org with esmtp (Exim 4.34) id 1C2QTc-0007PV-1j for grub-devel@gnu.org; Wed, 01 Sep 2004 04:28:20 -0400 Received: from localhost (localhost [127.0.0.1]) by kotoba.storever.com (Postfix) with ESMTP id 6EB60F4CA4A1 for ; Wed, 1 Sep 2004 10:28:17 +0200 (CEST) From: "Yoshinori K. Okuji" Organization: enbug.org To: The development of GRUB 2 Date: Wed, 1 Sep 2004 10:27:04 +0200 User-Agent: KMail/1.6.1 References: <842B9E25-FA16-11D8-A0F6-000A95A0560C@penguinppc.org> <87llfwwqgc.fsf@marco.marco-g.com> <2B66FF58-FAF3-11D8-89E9-000A95A0560C@penguinppc.org> In-Reply-To: <2B66FF58-FAF3-11D8-89E9-000A95A0560C@penguinppc.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200409011027.04994.okuji@enbug.org> Subject: Re: patch for PPC Old World Macintosh X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Sep 2004 08:33:48 -0000 On Tuesday 31 August 2004 04:12, Hollis Blanchard wrote: > Hmm. I think the i386 loader doesn't worry about such things, but > rather loads the kernel in a fixed region? Here is a short description about how GRUB/i386-pc works: 1. At the initialization stage, GRUB reserves about 2/3 of the whole memory for OS images. This starts from 1MB. GRUB never use this region for its own use. 2. When GRUB boots an OS image actually, GRUB releases all memory regions which have been allocated for its own use. 3. GRUB copies OS images to appropriate locations, according to Multiboot Header or other information. This stage is performed by the kernel (more precisely, the assembly code located at the region starting from 0x8000). I think you can use the same way on Mac as well. Okuji