From owner-freebsd-questions@FreeBSD.ORG Wed Dec 3 17:28:58 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 F20A3106564A for ; Wed, 3 Dec 2008 17:28:58 +0000 (UTC) (envelope-from af.gourmet@videotron.ca) Received: from relais.videotron.ca (relais.videotron.ca [24.201.245.36]) by mx1.freebsd.org (Postfix) with ESMTP id CC6C58FC1F for ; Wed, 3 Dec 2008 17:28:58 +0000 (UTC) (envelope-from af.gourmet@videotron.ca) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=ISO-8859-1; format=flowed Received: from [192.168.0.51] ([96.21.103.185]) by VL-MO-MR005.ip.videotron.ca (Sun Java(tm) System Messaging Server 6.3-4.01 (built Aug 3 2007; 32bit)) with ESMTP id <0KBB00MSH9UMXIB0@VL-MO-MR005.ip.videotron.ca> for freebsd-questions@freebsd.org; Wed, 03 Dec 2008 12:27:58 -0500 (EST) Message-id: <4936C1CA.2040501@videotron.ca> Date: Wed, 03 Dec 2008 12:28:42 -0500 From: PJ User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) To: freebsd-questions@freebsd.org Subject: restore superblock 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: Wed, 03 Dec 2008 17:28:59 -0000 I have been googling for superblock restore and things are a bit confusing. Some of the commands don't seem to match current fsck parameters (notably -b doesn't exist. Apparently I should be able to reconstruct the superblock(s) on my /usr partition (slice ?) as my searches found that there are backups of the superblocks on the files systems. But how do I find them and restore the corrupt ones? Not clear in my searches. I have another installation of fbsd 7.0 on another machine with the partitioning identical and identical hdds. How could I use the superblock and/or other information from the good installation to repair the damaged one - or would it be possible to recover the superblock info from the damaged one's backcups? Phil Jourdan