From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1FekYP-00088h-1N for mharc-grub-devel@gnu.org; Fri, 12 May 2006 23:12:29 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FekYN-00088Y-OV for grub-devel@gnu.org; Fri, 12 May 2006 23:12:27 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FekYJ-000888-NM for grub-devel@gnu.org; Fri, 12 May 2006 23:12:27 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FekYJ-000885-HR for grub-devel@gnu.org; Fri, 12 May 2006 23:12:23 -0400 Received: from [212.85.152.101] (helo=kotoba.storever.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FekaB-0004Y3-MN for grub-devel@gnu.org; Fri, 12 May 2006 23:14:19 -0400 Received: from kotoba.oasis.nexedi.com (kotoba.oasis.nexedi.com [212.85.152.101]) by kotoba.storever.com (Postfix) with ESMTP id 3CAB43C000F41 for ; Sat, 13 May 2006 06:38:57 +0200 (CEST) Received: from [??1] (localhost [127.0.0.1]) by kotoba.storever.com (Postfix) with ESMTP id BD17A3C000F40 for ; Sat, 13 May 2006 06:38:56 +0200 (CEST) From: "Yoshinori K. Okuji" Organization: enbug.org To: The development of GRUB 2 Date: Sat, 13 May 2006 05:12:18 +0200 User-Agent: KMail/1.8.2 References: <4457893F.3030703@corest.com> <44648523.8080905@corest.com> In-Reply-To: <44648523.8080905@corest.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200605130512.18837.okuji@enbug.org> X-Bogosity: No, tests=bogofilter, spamicity=0.461629, version=0.17.2 Subject: Re: GRUB 2 and eltorito boot (no emul) 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: Sat, 13 May 2006 03:12:27 -0000 On Friday 12 May 2006 14:52, Gerardo Richarte wrote: > Suppose I wanted to implement eltorito boot (as for mkiso -b > iso/boot/eltorito -no-emul-boot -boot-load-size 4 -boot-info-table) for > GRUB 2. What do you think would be the best approach? I took a look at > GRUB Legacy's eltorito_start and it doesn't think neither too > complicated nor too different to boot.S from GRUB 2, give or take a table. For now, the easiest way is to use the hard drive emulation mode. This should work transparently. But I don't know how many BIOSes correctly implement the emulation. If you really want to use the no emulation mode, it would be the easiest to port the feature from GRUB Legacy, as you guess. FYI, a student might work on this issue in the Summer of Code. Okuji