From owner-freebsd-amd64@FreeBSD.ORG Fri Apr 6 00:14:24 2007 Return-Path: X-Original-To: freebsd-amd64@freebsd.org Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0296916A405 for ; Fri, 6 Apr 2007 00:14:24 +0000 (UTC) (envelope-from mwm-dated-1176680893.9aab75@mired.org) Received: from mired.org (vpn.mired.org [66.92.153.74]) by mx1.freebsd.org (Postfix) with SMTP id 9E3E313C46A for ; Fri, 6 Apr 2007 00:14:23 +0000 (UTC) (envelope-from mwm-dated-1176680893.9aab75@mired.org) Received: (qmail 37138 invoked by uid 1001); 5 Apr 2007 23:48:13 -0000 Received: by bhuda.mired.org (tmda-sendmail, from uid 1001); Thu, 05 Apr 2007 19:48:13 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17941.35517.518959.875881@bhuda.mired.org> Date: Thu, 5 Apr 2007 19:48:13 -0400 To: Xi Liu In-Reply-To: <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com> References: <17941.22785.930117.211326@bhuda.mired.org> <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com> X-Mailer: VM 7.17 under 21.4 (patch 20) "Double Solitaire" XEmacs Lucid X-Primary-Address: mwm@mired.org X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`; h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ X-Delivery-Agent: TMDA/1.1.5 (Fettercairn) From: Mike Meyer Cc: freebsd-amd64@freebsd.org Subject: Re: Is there a way to make the computer boot again with a possible corrupted gm drive X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Apr 2007 00:14:24 -0000 In <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com>, Xi Liu typed: > I was able to mount one of the SATA drive (which is > part of the gmirror drive), and copy some data files > to another IDE drive (bootable). But I can not copy > some data files, there was error being printed out > that says sth. like "...UNRECOVERABLE....", > Hopefully, the data files I was able to copy is > complete. > > The gmirror drive consists of two SATA drives. That I > usally boot from this gmirror drive. Do you know if I > can restore/rebuild the complete gmirror drive? If > Yes, can you please point to me some instructions? > That can save me lots of time/trouble to > reinstall/reconfigure the whole system No, I don't know if you can restore/rebuild it, because I don't know how badly it's broken. If all the drives are dead, you're out of luck. Normally, only one of the drives in a mirror has problems. So try mounting the other drives and see if how they work. If one of them is fine, then you can just mount it and and a replacement for the dead drives, and the system will automatically rebuild the mirror on the new drives. If all of the drives have problems (I've never had that happen), then you have multiple broken drives to try and recover the data from, meaning you're more likely to be able to get everything back. Whatever you do, *do not* write on the drives! If the data is truly valuable, there are services that specialize in extracting data from dead drives. Writing anything at all to the drive makes their work harder. However, they are expensive. http://www.mired.org/consulting.html Independent Network/Unix/Perforce consultant, email for more information.