From owner-freebsd-geom@FreeBSD.ORG Sat Nov 10 17:44:53 2007 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 66D0316A41A for ; Sat, 10 Nov 2007 17:44:53 +0000 (UTC) (envelope-from mirror176@hotmail.com) Received: from bay0-omc1-s18.bay0.hotmail.com (bay0-omc1-s18.bay0.hotmail.com [65.54.246.90]) by mx1.freebsd.org (Postfix) with ESMTP id 4CFE013C4A3 for ; Sat, 10 Nov 2007 17:44:53 +0000 (UTC) (envelope-from mirror176@hotmail.com) Received: from BAY110-W41 ([65.54.229.141]) by bay0-omc1-s18.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Sat, 10 Nov 2007 09:31:31 -0800 Message-ID: X-Originating-IP: [70.176.148.72] From: Edward Sutton To: Date: Sat, 10 Nov 2007 10:31:32 -0700 Importance: Normal Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginalArrivalTime: 10 Nov 2007 17:31:31.0907 (UTC) FILETIME=[88B0C130:01C823BF] Subject: gvinum raid5 cannot find file system superblock after removing a disk X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Nov 2007 17:44:53 -0000 I had a disk that had been in a down state in the past, marking its raid5 p= lexes as stale. After determining which disk was the one connected to the s= tale data (ad8), I rebooted to a freebsd on a nonraided freebsd drive that = did not have geom_gvinum loaded. I made a dd of the first 64mb on ad8 and u= sed sysinstall to repartition the drive. The main system has failed to moun= t or fsck all raid5 partitions since. gvinum still says the untouched piece= s are in the 'up' state and restoring my ad8 dd made that disk listed again= but still cannot boot. I have not yet tried to rebuild the disk from the o= ther 2 since it is unable to boot from them. Is there a chance that the day= a is no longer being called with the=20 correct offset or from the correct disk? is there a way i can experiment wi= th the data from each disk to rebuild it using different orders and offsets= to create another disk containing nonstriped data to try to find the files= ystems? I am running a stable6 system updated about 3 days ago and haven't found an= y postings indicating trouble from there. Any information as to what went w= rong and suggested steps from here to bring this data back online would be = greatly appreciated. I will try to provide any requested information, but a= t present wukk be manually copying it fro one computer to the next in most = cases. Thanks again for any information, Ed Sutton _________________________________________________________________ Help yourself to FREE treats served up daily at the Messenger Caf=E9. Stop = by today. http://www.cafemessenger.com/info/info_sweetstuff2.html?ocid=3DTXT_TAGLM_Oc= tWLtagline=