From owner-freebsd-current@FreeBSD.ORG Mon Oct 19 06:02:47 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AF21E106566B for ; Mon, 19 Oct 2009 06:02:47 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id 6A2D88FC15 for ; Mon, 19 Oct 2009 06:02:47 +0000 (UTC) Received: from ds4.des.no (des.no [84.49.246.2]) by smtp.des.no (Postfix) with ESMTP id 25B8A6D41B; Mon, 19 Oct 2009 06:02:46 +0000 (UTC) Received: by ds4.des.no (Postfix, from userid 1001) id 9755F844D2; Mon, 19 Oct 2009 08:02:45 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: Julian Elischer References: <4ACE6D84.3000209@gmail.com> <4ACE833A.3030506@uffner.com> <4ACE9DFD.3010207@gmail.com> <200910131644.04358.john@baldwin.cx> <86ljja3ud5.fsf@ds4.des.no> <20091018162750.E82400@ury.york.ac.uk> <4ADBE444.1010706@elischer.org> Date: Mon, 19 Oct 2009 08:02:45 +0200 In-Reply-To: <4ADBE444.1010706@elischer.org> (Julian Elischer's message of "Sun, 18 Oct 2009 21:00:04 -0700") Message-ID: <86vdibzzsq.fsf@ds4.des.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.95 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: John Baldwin , Antony Mawer , freebsd-current@freebsd.org, David Ehrmann , Daniel Nebdal Subject: Re: 8.0rc1 not recognizing partitions on EPIA SN X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Oct 2009 06:02:47 -0000 Julian Elischer writes: > Daniel Nebdal writes: > > Does that mean that it's possible to write a DD-style disklabel that > > GEOM_PART would be happy with? > it may be as little as overwriting bytes 510 and 511 of block0. > (the last 2 bytes of the block are a magic number) > > this would stop the fdisk taster from recognising it as an fdisk > block and teh disklabel taster would recognise the disklabel. If by "block0" you mean the very first sector of the disk, it will also stop the BIOS from booting from that disk... DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no