From owner-freebsd-questions@FreeBSD.ORG Mon Oct 11 02:37:29 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 515C916A4CE for ; Mon, 11 Oct 2004 02:37:29 +0000 (GMT) Received: from clunix.cl.msu.edu (clunix.cl.msu.edu [35.9.2.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id CC9C443D45 for ; Mon, 11 Oct 2004 02:37:28 +0000 (GMT) (envelope-from jerrymc@clunix.cl.msu.edu) Received: (from jerrymc@localhost) by clunix.cl.msu.edu (8.11.7p1+Sun/8.11.7) id i9B2bOn12053; Sun, 10 Oct 2004 22:37:24 -0400 (EDT) From: Jerry McAllister Message-Id: <200410110237.i9B2bOn12053@clunix.cl.msu.edu> To: Emanuel.Strobl@gmx.net (Emanuel Strobl) Date: Sun, 10 Oct 2004 22:37:24 -0400 (EDT) In-Reply-To: <200410101833.34113.Emanuel.Strobl@gmx.net> from "Emanuel Strobl" at Oct 10, 2004 06:33:28 PM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org Subject: Re: MBR not overwritable with dd? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Oct 2004 02:37:29 -0000 > > I tried to null out the MBR with the BETA7 fixit CD with the follwoing=20 > command: > dd if=3D/dev/zero of=3D/dev/ad0 count=3D16 > > After that fdsik still showed me a valid partition tabel! > How? Does GEOM map the beginning of the raw device? Was it getting it from the in-memory informatino? ////jerry > > Thank you in advance, >