From owner-freebsd-hackers@FreeBSD.ORG Fri Mar 23 07:05:36 2012 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B4041106564A for ; Fri, 23 Mar 2012 07:05:36 +0000 (UTC) (envelope-from scdbackup@gmx.net) Received: from mailout-de.gmx.net (mailout-de.gmx.net [213.165.64.23]) by mx1.freebsd.org (Postfix) with SMTP id 281B08FC14 for ; Fri, 23 Mar 2012 07:05:35 +0000 (UTC) Received: (qmail invoked by alias); 23 Mar 2012 07:05:29 -0000 Received: from 165.126.46.212.adsl.ncore.de (HELO 192.168.2.69) [212.46.126.165] by mail.gmx.net (mp017) with SMTP; 23 Mar 2012 08:05:29 +0100 X-Authenticated: #2145628 X-Provags-ID: V01U2FsdGVkX1/U2IcxrCbUsFn3FevJNDsK4Bi7fCI/+cevvLFFe0 TPP9Yn0gNvHoVP Date: Fri, 23 Mar 2012 08:06:05 +0100 From: "Thomas Schmitt" To: freebsd-hackers@freebsd.org References: <4F6BC6AB.30709@herveybayaustralia.com.au> In-Reply-To: <4F6BC6AB.30709@herveybayaustralia.com.au> Message-Id: <100303152110179@192.168.2.69> X-Y-GMX-Trusted: 0 Subject: Re: iso2flash img X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Mar 2012 07:05:36 -0000 Hi, Da Rock wrote: > It shows isolinux 4.04, blah blah, and a blinking cursor. It goes no further > than that, which I why I commented that it seemed an unlikely solution. If it can say "isolinux" then the boot process has succeeded as far as the boot sectors of the ISO image are responsible. > The system is an Acer AspireOne Netbook D255. I'm using an i386 image > because its only an Atom. Can you try whether the Ubuntu image boots from CD or DVD ? > I did test a amd64 system and it worked though... hmmm. I wonder if they > mixed up their images? That'd be a funny cock-up :D At that stage you are still in the SYSLINUX/ISOLINUX system. Afaik, there is no 64 bit version of it. So that one can hardly be totally unsuitable for 32 bit systems. I am not familiar with the entrails of the boot loaders. Maybe you can get help at the SYSLINUX mailing list syslinux@zytor.com. http://www.zytor.com/mailman/listinfo/syslinux Google "ubuntu atom isolinux" finds an older issue: https://bugs.launchpad.net/ubuntu/+bug/774552 points to https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/617779 "Just type "help" on the BOOT prompt, and when you get the help menu, just hit enter. The system will now boot!" Does ISOLINUX allow you to enter commands ? ------------------------------------ One thing comes to my mind which you could try. It is quite unlikely to be the culprit though: By a bug in xorriso-1.0.8 the image size is not aligned to a full megabyte, as is prescribed for isohybrid. So you could try to set the end of the USB stick DOS partition 1 to the next higher multiple of 2048 disk blocks minus 1. (Make sure that no block content gets changed after byte 64 * 512.) If this happens to work, then we should inform Ubuntu to upgrade their xorriso to 1.1.0 or later. (Up to now i only know that the correct size silences warnings of Linux fdisk about "different physical/logical beginnings".) Have a nice day :) Thomas