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 1NAQjQ-0000nj-UT for garchives@archives.gentoo.org; Tue, 17 Nov 2009 16:16:45 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 8D5FCE0A6E; Tue, 17 Nov 2009 16:16:36 +0000 (UTC) Received: from eastrmmtao107.cox.net (eastrmmtao107.cox.net [68.230.240.59]) by pigeon.gentoo.org (Postfix) with ESMTP id 54CDDE0A6E for ; Tue, 17 Nov 2009 16:16:36 +0000 (UTC) Received: from eastrmimpo02.cox.net ([68.1.16.120]) by eastrmmtao107.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20091117161636.FQQ19505.eastrmmtao107.cox.net@eastrmimpo02.cox.net> for ; Tue, 17 Nov 2009 11:16:36 -0500 Received: from [192.168.1.101] ([68.226.67.252]) by eastrmimpo02.cox.net with bizsmtp id 6GGb1d00H5Sa0uU02GGbuM; Tue, 17 Nov 2009 11:16:36 -0500 X-VR-Score: -100.00 X-Authority-Analysis: v=1.0 c=1 a=LvUGYkQ2HisA:10 a=pGLkceISAAAA:8 a=v8ZTQCEcdfI6REbkv0wA:9 a=HFvGrWOSUbf2oa4XOKNEsmG84LkA:4 a=MSl-tDqOz04A:10 X-CM-Score: 0.00 Message-ID: <4B02CC0C.6000600@cox.net> Date: Tue, 17 Nov 2009 11:15:08 -0500 From: Marcus Wanner User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Reading a DVD as an ISO image References: <20091117062411.GA16698@malaquias.DHCP-GERAL> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Archives-Salt: a80af68c-ffd8-4994-a711-80b8de6e7fbd X-Archives-Hash: 6130822d9ac98bc198f901a874a263c5 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. Marcus