From owner-freebsd-questions@FreeBSD.ORG Wed Jul 30 12:08:29 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4CA34106566B for ; Wed, 30 Jul 2008 12:08:29 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 1095C8FC14 for ; Wed, 30 Jul 2008 12:08:28 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KOATk-0002je-60 for freebsd-questions@freebsd.org; Wed, 30 Jul 2008 12:08:28 +0000 Received: from pool-138-88-93-174.res.east.verizon.net ([138.88.93.174]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 30 Jul 2008 12:08:28 +0000 Received: from nightrecon by pool-138-88-93-174.res.east.verizon.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 30 Jul 2008 12:08:28 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Michael Powell Date: Wed, 30 Jul 2008 08:10:10 -0400 Lines: 42 Message-ID: References: <489051CB.9010808@janh.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: pool-138-88-93-174.res.east.verizon.net Sender: news Subject: Re: New harddisk: "CANNOT READ BLK" Cause? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: nightrecon@verizon.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jul 2008 12:08:29 -0000 Jan Henrik Sylvester wrote: > I got a new harddisk for my laptop, attached it via firewire, used "dump > 0aLf - / | restore xf -" (from the FAQ), and swapped it with my internal > one. During that, I also migrated /var and /usr to separate bsdlabels. > > On reboot during fsck (ad0s1f), I got: > > CANNOT READ BLK: 251403296 > CONTINUE? [yn] y > > THE FOLLOWING DISK SECTORS COULD NOT BE READ: 251403296, 251403297, > 251403298, 251403299, Whenever I see messages like this I tend to wonder: "defective"? > LOOK FOR ALTERNATE SUPERBLOCKS? yes > > 32 is not a file system superblock > SEARCH FOR ALTERNATE SUPER-BLOCK FAILED. YOU MUST USE THE > > Is there a problem with the harddisk? Did I do anything wrong? How do I > find out? > [snip] I'm going to assume here that you still have the old HD and it is set aside out of the way and is OK as a backup. Me, what I think I'd do is leave the new drive installed, wipe it clean, and try a fresh install from CDROM. Reboot and look for these errors. If they magically are no longer present I'd suspect something went wrong using the Firewire port on the first go around. If you see them again I'd suspect the drive may be faulty with bad media spots and would be a candidate for RMA replacement. There may be a disk diagnostic available which can confirm bad media. Eliminate the hardware as faulty first, just to get it out of the way. -Mike