From owner-freebsd-hackers@FreeBSD.ORG Wed Jan 14 13:26:33 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 02C5B16A4CE for ; Wed, 14 Jan 2004 13:26:33 -0800 (PST) Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6FCB243D46 for ; Wed, 14 Jan 2004 13:26:30 -0800 (PST) (envelope-from imp@bsdimp.com) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.12.10/8.12.9) with ESMTP id i0ELQLET093337; Wed, 14 Jan 2004 14:26:21 -0700 (MST) (envelope-from imp@bsdimp.com) Date: Wed, 14 Jan 2004 14:26:19 -0700 (MST) Message-Id: <20040114.142619.35090817.imp@bsdimp.com> To: dgilbert@dclg.ca From: "M. Warner Losh" In-Reply-To: <16389.25821.502399.872877@canoe.dclg.ca> References: <16389.25821.502399.872877@canoe.dclg.ca> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: freebsd-hackers@freebsd.org Subject: Re: Filesystem marker. X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Jan 2004 21:26:33 -0000 In message: <16389.25821.502399.872877@canoe.dclg.ca> David Gilbert writes: : Is there a set of bytes at some offset in a block that is common to : any instance of a BSD ufs filesystem? I ask because recently my home : machine erased it's fdisk block _and_ the bsdlabel with it. It : certainly didn't have time to erase the whole disk, but I'm having : trouble guessing where the partitions are. You can look for the UFS magic number. Warner