From owner-freebsd-questions@FreeBSD.ORG Thu Feb 22 22:19:48 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2FA7416A403 for ; Thu, 22 Feb 2007 22:19:48 +0000 (UTC) (envelope-from martster@gmail.com) Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.239]) by mx1.freebsd.org (Postfix) with ESMTP id E41A213C467 for ; Thu, 22 Feb 2007 22:19:47 +0000 (UTC) (envelope-from martster@gmail.com) Received: by nz-out-0506.google.com with SMTP id i11so304084nzh for ; Thu, 22 Feb 2007 14:19:47 -0800 (PST) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; b=POuJgbWlOX7pcjjOYXeOy9Cx1O8XXj20kf+UHrnLgTuHvEQyeSNzjQn7uthEmLlocN42kFEZ4Z563YXHoCAHCNjE+DhliCueXekgkjoOqPqRCR82dNHGR5pTofeftrNQibcXUxoCwGPF85MA5yZKCHmYf4cGuYxplcf8AIO2Vuc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=KURu6KKEIymKy2lMbVxuyHBdvQoBmIQpv1/n61WDYdmUZy+KZvoPlt8vWj++3tTOqRLVX+s3EsRIkgLEHds97YnA5O6fFJmxbbgDyDO3OGLssqyv78B1OTzfSLLyHTVGtIDZ7s71L1GgdKwi6UJVsApt9G+hswWN4/g+2X6l5Yo= Received: by 10.65.230.9 with SMTP id h9mr1997566qbr.1172182787130; Thu, 22 Feb 2007 14:19:47 -0800 (PST) Received: by 10.65.139.13 with HTTP; Thu, 22 Feb 2007 14:19:47 -0800 (PST) Message-ID: <70063950702221419s57a34f05p1bdee62713a67aae@mail.gmail.com> Date: Thu, 22 Feb 2007 17:19:47 -0500 From: "Marty Landman" To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: input/output error on hd 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, 22 Feb 2007 22:19:48 -0000 I wrote about this problem before, still working on recovery. After a power outage I lost my primary slave hd, a 250MB Maxtor. Got rebooted ok by editing it out of the fstab i.e. %cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/ad0s1b none swap sw 0 0 /dev/ad0s1a / ufs rw 1 1 ... #/dev/ad1s1c /hoss ufs rw 2 2 % It's been explained to me that ad1s1c was an inappropriate name for the partition on this drive, will change that after fixing this mess. Here is a problem symptom summary: %sudo mount /dev/ad1s1c /hoss mount: /dev/ad1s1c: Input/output error %sudo mount /dev/ad1s1 /hoss mount: /dev/ad1s1: Input/output error %sudo fsck -f /dev/ad1s1 fsck: Could not determine filesystem type %sudo fsck -f /dev/ad1s1c fsck: exec fsck_unused for /dev/ad1s1c in /sbin:/usr/sbin: No such file or directory % Have determined from dd's that there's data on here, wonder though if the power outage caused some permanent damage. Have isolated the errors to blocks 129 through 144: %sudo dd if=/dev/ad1s1 of=/tmp/scratch bs=512 count=1 skip=127 1+0 records in 1+0 records out 512 bytes transferred in 0.008638 secs (59274 bytes/sec) %sudo dd if=/dev/ad1s1 of=/tmp/scratch bs=512 count=1 skip=128 dd: /dev/ad1s1: Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 1.315347 secs (0 bytes/sec) ... [repeats for skip=129 to skip=142] %sudo dd if=/dev/ad1s1 of=/tmp/scratch bs=512 count=1 skip=143 dd: /dev/ad1s1: Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 1.336348 secs (0 bytes/sec) %sudo dd if=/dev/ad1s1 of=/tmp/scratch bs=512 count=1 skip=144 1+0 records in 1+0 records out 512 bytes transferred in 0.018065 secs (28342 bytes/sec) So, I need to know what to do next. Have been looking for pertinant information to learn how to pick apart whatever's keeping my drive for being mountable and fix manually but either don't know what to look for or haven't found the right explanation yet. For instance, is it possible if I somehow 'eliminated' blocks 129 through 144 that the volume would then mount for me? Any help would be appreciated. Marty -- Web Installed Formmail - http://face2interface.com/formINSTal/ Webmaster's BBS - http://bbs.face2interface.com/