From owner-freebsd-fs@FreeBSD.ORG Wed Aug 25 20:34:25 2004 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2B60016A4CF for ; Wed, 25 Aug 2004 20:34:25 +0000 (GMT) Received: from fort-point-station.mit.edu (FORT-POINT-STATION.MIT.EDU [18.7.7.76]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE35B43D1F for ; Wed, 25 Aug 2004 20:34:24 +0000 (GMT) (envelope-from simsong@csail.mit.edu) Received: from grand-central-station.mit.edu (GRAND-CENTRAL-STATION.MIT.EDU [18.7.21.82])i7PKYMs0005768 for ; Wed, 25 Aug 2004 16:34:22 -0400 (EDT) Received: from melbourne-city-street.mit.edu (MELBOURNE-CITY-STREET.MIT.EDU [18.7.21.86])i7PKYITs015001 for ; Wed, 25 Aug 2004 16:34:22 -0400 (EDT) Received: from [192.168.1.21] (ip-64-7-15-235.dsl.bos.megapath.net [64.7.15.235]) )i7PKYGpq005814 for ; Wed, 25 Aug 2004 16:34:16 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v619) Content-Transfer-Encoding: 7bit Message-Id: <249AA14A-F6D6-11D8-87E0-000A95DA91E2@csail.mit.edu> Content-Type: text/plain; charset=US-ASCII; format=flowed To: freebsd-fs@freebsd.org From: "Simson L. Garfinkel" Date: Wed, 25 Aug 2004 16:34:20 -0400 X-Mailer: Apple Mail (2.619) Subject: problems with fsck_ffs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Aug 2004 20:34:25 -0000 Greetings. I just had a RAID crash which required some recovery with fsck_ffs. Two problems with fsck_ffs in 5.2 were discovered: 1. There is a divide-by-0 error that happens under some conditions when the contents of the superblock and the backup superblock are partially damaged. =>Would you like a fix for this? 2. There is no obvious functionality to scan the whole hard-drive for backup superblocks. => I've written such a program. If I integrate it into fsck, will you take the mods? -Simson Garfinkel