From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1O4BMY-00045m-3g for mharc-grub-devel@gnu.org; Tue, 20 Apr 2010 07:11:30 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O4BMV-00044u-Un for grub-devel@gnu.org; Tue, 20 Apr 2010 07:11:27 -0400 Received: from [140.186.70.92] (port=42956 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O4BMU-00044h-74 for grub-devel@gnu.org; Tue, 20 Apr 2010 07:11:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O4BMS-00062H-7Q for grub-devel@gnu.org; Tue, 20 Apr 2010 07:11:26 -0400 Received: from mail.gmx.net ([213.165.64.20]:45243) by eggs.gnu.org with smtp (Exim 4.69) (envelope-from ) id 1O4BMR-00061x-QR for grub-devel@gnu.org; Tue, 20 Apr 2010 07:11:24 -0400 Received: (qmail invoked by alias); 20 Apr 2010 11:11:21 -0000 Received: from 165.126.46.212.adsl.ncore.de (HELO 192.168.2.69) [212.46.126.165] by mail.gmx.net (mp010) with SMTP; 20 Apr 2010 13:11:21 +0200 X-Authenticated: #2145628 X-Provags-ID: V01U2FsdGVkX18Ac2ofTGQA+1Pcc9V2deia5js1KOQxHBZSwgKlGD KNrtsJMkhsPEX/ Date: Tue, 20 Apr 2010 13:10:38 +0200 From: "Thomas Schmitt" To: grub-devel@gnu.org Message-Id: <10638214586734@192.168.2.69> X-Y-GMX-Trusted: 0 X-FuHaFi: 0.56000000000000005 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Subject: xorriso and EFI boot images X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Apr 2010 11:11:28 -0000 Hi, i took a look at grub-mkrescue.in with EFI and implemented the EFI-only case in xorriso-0.5.5 timestamp 2010.04.20.103448: --efi-boot FILE Set El Torito EFI boot image name and type Currently -b and --efi-boot override each other. Who comes last will win. --efi-boot is not yet immune against subsequent -boot-info-table. It disables eventual previous -boot-info-table, though. Due to an allergic reaction in libisofs, older versions of xorriso are not be able to load ISO images with boot catalog signature other than 0 ("80x86"). ------------------------------------------------ Next i will have to extend the libisofs model of a single boot image to a model that can represent an El Torito Multiple Boot-Image configuration. But i have scruples about the semantics of Platform ID which is global to the whole boot catalog. Is platform 0xef meant to be a superset of platform 0x00 ? If not, then it might violate the El Torito model if we mix PC BIOS and EFI boot images. If yes: how do platforms 0x01 (Power PC) and 0x02 (Mac) fit in there ? ------------------------------------------------- Development of grub-mkrescue and xorriso: Since we develop and fulfill new demands of grub-mkrescue towards xorriso, we will need a way to detect whether the locally installed xorriso is able to fulfill them. I can offer two ways for that: - xorriso -version reports lines xorriso version : 0.5.4 Version timestamp : 2010.04.19.080001 by which one can determine the development state. - xorriso -as mkisofs -help 2>&1 reports available commands. My own test version of grub-mkrescue 1.98 uses this to handle genisoimage, grub-mkisofs and xorriso. This method is also used by my tool scdbackup for using a mkisofs range of 10 years, and a xorriso range of 2 years. Have a nice day :) Thomas