From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NAiE7-0002zc-HB for garchives@archives.gentoo.org; Wed, 18 Nov 2009 10:57:31 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 4400BE0943; Wed, 18 Nov 2009 10:57:05 +0000 (UTC) Received: from emailteste.ufop.br (emailteste.ufop.br [200.131.208.186]) by pigeon.gentoo.org (Postfix) with ESMTP id 8CC69E0943 for ; Wed, 18 Nov 2009 10:57:04 +0000 (UTC) Received: (qmail 6551 invoked by uid 89); 18 Nov 2009 10:42:07 -0000 Received: by simscan 1.3.1 ppid: 6538, pid: 6544, t: 0.1181s scanners: attach: 1.3.1 clamav: 0.91.2/m:/d:4015 Received: from unknown (HELO malaquias.no-ip.info) (romildo@iceb.ufop.br@200.131.25.75) by 0 with ESMTPA; 18 Nov 2009 10:42:07 -0000 Received: by malaquias.no-ip.info (Postfix, from userid 500) id BBFFE10A03D; Wed, 18 Nov 2009 08:44:01 -0200 (BRST) Date: Wed, 18 Nov 2009 08:44:01 -0200 From: =?iso-8859-1?Q?Jos=E9?= Romildo Malaquias To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Reading a DVD as an ISO image Message-ID: <20091118104401.GC13353@malaquias.DHCP-GERAL> References: <20091117062411.GA16698@malaquias.DHCP-GERAL> <4B02CC0C.6000600@cox.net> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B02CC0C.6000600@cox.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-Archives-Salt: a7d8bbdc-d34e-4745-8b82-4e06a1a9e942 X-Archives-Hash: 6cb2530bd90c62fd0a89454242a8faf4 On Tue, Nov 17, 2009 at 11:15:08AM -0500, Marcus Wanner wrote: > On 11/17/2009 10:40 AM, Grant Edwards wrote: > > On 2009-11-17, Jos? Romildo Malaquias wrote: > > > > > >> Once I have written a dvd ISO image to a dvd-r disk and then I have > >> deleted the image from the hard disk. Now I need the image again, but > >> reading the image from disk does not give me an identical image to the > >> original one. > >> > >> I have used the commands > >> > >> $ readcd -vvv dev=/dev/dvd f=image.iso > >> > >> and > >> > >> $ dd if=/dev/dvd of=image.iso > >> > >> With both commands, the resulting image is 99.9% identical to the > >> original one. > >> > > > > If you deleted the original, how do you know? the one you're > > creating from the DVD isn't identical? > > > > > >> Is there anything I can do to get an image identical to the > >> original one? > >> > > > > Since you still seem to have a copy of the original ISO, just > > use it. > > > My guess is that he has a slow internet connection, he downloaded a > large iso, burned it, deleted it, and now wants to get the iso back > without downloading it again, but he has access to the checksum/filesize > of the original iso from the place he downloaded it, and when he makes > an iso, the checksum/filesize does not match. You guessed almost right. Except by the fact that the original iso was created by me and transfered to another machine, and now it is lost from both machines. Romildo