From owner-freebsd-questions Mon Mar 17 15:57:53 2003 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 B738037B404 for ; Mon, 17 Mar 2003 15:57:49 -0800 (PST) Received: from rackspace.mqtweb.com (rackspace.mqtweb.com [65.61.155.146]) by mx1.FreeBSD.org (Postfix) with ESMTP id E8A4043F3F for ; Mon, 17 Mar 2003 15:57:47 -0800 (PST) (envelope-from plathrop@mqtweb.com) Received: from mqtweb.com (Minerva.resnet.nmu.edu [204.38.206.86]) by rackspace.mqtweb.com (Postfix) with ESMTP id 8B00131673 for ; Sun, 16 Mar 2003 22:10:21 +0000 (GMT) Date: Sun, 16 Mar 2003 23:05:38 -0500 Mime-Version: 1.0 (Apple Message framework v551) Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Making an iso image from a data CD From: Paul Lathrop To: questions@freebsd.org Content-Transfer-Encoding: 7bit Message-Id: X-Pgp-Agent: GPGMail (v25) X-Mailer: Apple Mail (2.551) Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (trying a third time as it seems to not be getting through for some reason.) Greetings, I would like to create an iso image of a data cd. I started by following the directions from the FreeBSD Handbook (section 12.5) and ran the command: dd if=/dev/acd1c of=freebsd_disk1_backup.iso bs=2048 (acd1 is my CD-ROM drive) After about 210MB had copied, I got the following error: acd1: READ_BIG - MEDIUM ERROR asc=0x11 ascq=1x00 error=0x00 dd: /dev/acd1c: Input/output error I tried the same command using the CD burner I have on acd0: dd if=/dev/acd0c of=freebsd_disk1_backup.iso bs=2048 A similar error occurred: acd0: READ_BIG - ILLEGAL REQUEST asc=0x64 ascq-0x00 error=0x04 dd: /dev/acd0c: Input/output error I tried this on several disks (all known-good) and got the same result (at different points on the disk). I'm not sure what I am doing wrong. Relevant configuration info (I hope): acd0: CD-RW at ata1-master PIO4 acd1: CDROM at ata1-slave PIO4 uname -a output: FreeBSD ping.mqtweb.com 4.7-RELEASE FreeBSD 4.7-RELEASE #0: Wed Oct 9 15:08:34 GMT 2002 root@builder.freebsdmall.com:/usr/obj/usr/src/sys/GENERIC i386 Any chance someone can shed some light on this for me? Thanks, Paul D. Lathrop -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (Darwin) iD8DBQE+dUmVlos2supvBQwRAlCsAJ9+hEwCiio2TdOgclfv88e92foZUACdFdqf BDohzk3oA2ZXpFvqwlRHGw4= =mrrB -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message