From owner-freebsd-stable@FreeBSD.ORG Wed Dec 16 00:08:11 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 11161106566B for ; Wed, 16 Dec 2009 00:08:11 +0000 (UTC) (envelope-from ben@morrow.me.uk) Received: from relay.pcl-ipout01.plus.net (relay.pcl-ipout01.plus.net [212.159.7.99]) by mx1.freebsd.org (Postfix) with ESMTP id A25C98FC16 for ; Wed, 16 Dec 2009 00:08:09 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuwEAK+zJ0vUOFPl/2dsb2JhbACBS9ZIhCsE Received: from plesk-mail01.plus.net ([212.56.83.229]) by relay.pcl-ipout01.plus.net with ESMTP; 16 Dec 2009 00:08:08 +0000 Received: (qmail 31913 invoked from network); 16 Dec 2009 00:08:06 +0000 Received: from host86-146-192-188.range86-146.btcentralplus.com (HELO osiris.mauzo.dyndns.org) (86.146.192.188) by plesk-mail01.plus.net with SMTP; 16 Dec 2009 00:08:04 +0000 Received: (qmail 39700 invoked by uid 1001); 16 Dec 2009 00:08:03 -0000 Date: Wed, 16 Dec 2009 00:08:03 +0000 From: Ben Morrow To: xcllnt@mac.com, freebsd-stable@freebsd.org Message-ID: <20091216000803.GA39686@osiris.mauzo.dyndns.org> Mail-Followup-To: xcllnt@mac.com, freebsd-stable@freebsd.org References: <4B2802AE.9090107@kernel32.de> <200912151720.37709.freebsd@insightbb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4678E8AE-B873-460A-B126-420B9A06B875@mac.com> X-Newsgroups: gmane.os.freebsd.stable Organization: Who, me? User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Subject: Re: update to 8.0-RELEASE --> partition gone X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Dec 2009 00:08:11 -0000 Quoth Marcel Moolenaar : > On Dec 15, 2009, at 2:20 PM, Steven Friedrich wrote: > >> > > FreeBSD 8.0 no longer supports "dangerously dedicated" disks. > > This is not true. The problem is that sysinstall creates an invalid > "dangerously dedicated" disk, as demonstrated by doing: > # fdisk ad8 > (shows FreeBSD slice information) > > # bsdlabel ad8 > (shows valid but empty disk label) > > Marian just needs to wipe out the second sector on the disk to > remove the BSD disklabel that prevents the kernel from using > the master boot record in the 1st sector. This exposes ad8s1. > This then will pick up the BSD disklabel in sector 65 (i.e. > the second sector in slice 1) to give ad8s1a... Are you able to clarify exactly what is no longer working in 8? I've read things here and there about dangerously dedicated disks no longer being supported, but no detail about what exactly had changed. You seem to be implying here that there is only a problem if there are invalid and/or overlapping labels on the disk; elsewhere I have read that disks without an MBR aren't supported at all (I presume the faked-up MBR on a GPT disk counts). If I currently have a working ad2{b,c,d,e}, will they be picked up by 8, or would I have to repartition slightly smaller with a useless MBR slice in front? Ben