From owner-freebsd-questions@FreeBSD.ORG Thu May 25 13:33:35 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9C20C16A42D for ; Thu, 25 May 2006 13:33:35 +0000 (UTC) (envelope-from dkelly@Grumpy.DynDNS.org) Received: from smtp.knology.net (smtp.knology.net [24.214.63.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0365143D55 for ; Thu, 25 May 2006 13:33:34 +0000 (GMT) (envelope-from dkelly@Grumpy.DynDNS.org) Received: (qmail 8451 invoked by uid 0); 25 May 2006 13:32:45 -0000 Received: from unknown (HELO Grumpy.DynDNS.org) (216.186.148.249) by smtp5.knology.net with SMTP; 25 May 2006 13:32:45 -0000 Received: by Grumpy.DynDNS.org (Postfix, from userid 928) id 4289F28421; Thu, 25 May 2006 08:33:33 -0500 (CDT) Date: Thu, 25 May 2006 08:33:33 -0500 From: David Kelly To: Mikhail Goriachev Message-ID: <20060525133333.GA65381@Grumpy.DynDNS.org> References: <55634.24.1.139.244.1148527998.squirrel@mail.dfwlp.com> <44754221.202@webanoide.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <44754221.202@webanoide.org> User-Agent: Mutt/1.4.2.1i Cc: Jonathan Horne , freebsd-questions@freebsd.org Subject: Re: dd to create .iso of a cd X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 May 2006 13:33:36 -0000 On Thu, May 25, 2006 at 03:35:29PM +1000, Mikhail Goriachev wrote: > Jonathan Horne wrote: > > > > can anyone recommend how to create a .iso image in freebsd that will > > render a bootable .iso file? i hate to have to keep a linux box around > > the office just for the purpose of successfully creating a .iso file :) > > This is weird because it works for me. I do: > > $dd if=/dev/acd0 of=file.iso bs=2048 > $burncd -f /dev/acd0 data file.iso fixate > > My burnt copies boot boxen without problems. How do you burn your ISOs? Some CD/DVD readers handle EOM differently than others. For "fun" use the same dd command on the copied CD and compare it to the output of the first dd from original. I suggest Jonathan install sysutils/cdrtools from ports (if not already installed) and use the readcd(1) utility which is part of that collection. Its a bit of a hassle if your DVD/CD is ATAPI as the atapicam(4) SCSI/ATAPI translation layer needs to be added to your kernel. readcd(4) knows a bit more about what it is reading than dd so it does a better job. -- David Kelly N4HHE, dkelly@HiWAAY.net ======================================================================== Whom computers would destroy, they must first drive mad.