From owner-freebsd-fs Mon Jan 11 16:09:00 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA23769 for freebsd-fs-outgoing; Mon, 11 Jan 1999 16:09:00 -0800 (PST) (envelope-from owner-freebsd-fs@FreeBSD.ORG) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA23760; Mon, 11 Jan 1999 16:08:52 -0800 (PST) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id KAA17420; Tue, 12 Jan 1999 10:38:17 +1030 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.1/8.9.0) id KAA30894; Tue, 12 Jan 1999 10:38:16 +1030 (CST) Date: Tue, 12 Jan 1999 10:38:16 +1030 From: Greg Lehey To: Eivind Eklund Cc: fs@FreeBSD.ORG Subject: Re: Finding a lost FS Message-ID: <19990112103816.G8886@freebie.lemis.com> References: <19990110181118.F25747@bitbox.follo.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.1i In-Reply-To: <19990110181118.F25747@bitbox.follo.net>; from Eivind Eklund on Sun, Jan 10, 1999 at 06:11:18PM +0100 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sunday, 10 January 1999 at 18:11:18 +0100, Eivind Eklund wrote: > An error during some build experiments made disklabel run against the > wrong disk, overwriting just the label before quitting. Have anybody > got any good starters for how to recover the information on where the > FS on that disk is located? In the days where I did this for a living, we wrote a number of programs to scan disks for likely-looking magic numbers. I'd expect that would work here as well. Go through at 4kB offsets and look for superblocks. It'll take an hour or two to write the program, but people will be grateful forever. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message