From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 93-97-173-237.zone5.bethere.co.uk ([93.97.173.237] helo=tim.rpsys.net) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1SMbZ6-0005SY-5L for openembedded-core@lists.openembedded.org; Tue, 24 Apr 2012 10:57:40 +0200 Received: from localhost (localhost [127.0.0.1]) by tim.rpsys.net (8.13.6/8.13.8) with ESMTP id q3O8m2SE005386; Tue, 24 Apr 2012 09:48:02 +0100 Received: from tim.rpsys.net ([127.0.0.1]) by localhost (tim.rpsys.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 04928-02; Tue, 24 Apr 2012 09:47:58 +0100 (BST) Received: from [192.168.3.10] ([192.168.3.10]) (authenticated bits=0) by tim.rpsys.net (8.13.6/8.13.8) with ESMTP id q3O8lqXj005379 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 24 Apr 2012 09:47:53 +0100 Message-ID: <1335257270.12692.108.camel@ted> From: Richard Purdie To: Darren Hart Date: Tue, 24 Apr 2012 09:47:50 +0100 In-Reply-To: <4F95772B.2080007@linux.intel.com> References: <1334872962.3028.2.camel@ted> <4F95772B.2080007@linux.intel.com> X-Mailer: Evolution 3.2.2- Mime-Version: 1.0 X-Virus-Scanned: amavisd-new at rpsys.net Cc: Patches and discussions about the oe-core layer Subject: Re: [PATCH] bootimg.bbclass: Tweak iso images to become hybrid images X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: Patches and discussions about the oe-core layer List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Apr 2012 08:57:40 -0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit On Mon, 2012-04-23 at 08:37 -0700, Darren Hart wrote: > > On 04/19/2012 03:02 PM, Richard Purdie wrote: > > From: Damien Lespiau > > > > This allows iso images to be written to usb keys and booted on systems which > > have a BIOS which support this. There is no real down side to tweaking the iso > > images in this way. > > I like the idea, but there does appear to be one potential downside. > From the syslinux isolinux.txt documentation: > > "The ISO 9660 filesystem is encapsulated in a partition (which starts > at offset zero, which may confuse some systems.)" > > How many different systems and firmware has this been tested on? > > I think it is a worthwhile patch, but we should be aware of the above in > case a regression is reported. In such an event, it seems a > NO_ISO_HYBRID flag could be set by the machine.conf to revert to the > older behavior. Agreed, I think we should try this and see if there are any problems reported. I tested a few machines here and it seemed to work on most of them but this was with a USB key, not a CD image. This is probably our more common use case though. Cheers, Richard