From owner-freebsd-questions@FreeBSD.ORG Fri Oct 16 19:15:04 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 406DD106568B for ; Fri, 16 Oct 2009 19:15:04 +0000 (UTC) (envelope-from af.gourmet@videotron.ca) Received: from relais.videotron.ca (relais.videotron.ca [24.201.245.36]) by mx1.freebsd.org (Postfix) with ESMTP id 15F258FC08 for ; Fri, 16 Oct 2009 19:15:03 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=UTF-8 Received: from [192.168.0.51] ([96.21.103.185]) by VL-MO-MR005.ip.videotron.ca (Sun Java(tm) System Messaging Server 6.3-4.01 (built Aug 3 2007; 32bit)) with ESMTP id <0KRM000S9G4P3HE0@VL-MO-MR005.ip.videotron.ca> for freebsd-questions@freebsd.org; Fri, 16 Oct 2009 15:14:50 -0400 (EDT) Message-id: <4AD8C62C.2060009@videotron.ca> Date: Fri, 16 Oct 2009 15:14:52 -0400 From: PJ User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) To: Manolis Kiagias References: <4AD8B65C.9020603@videotron.ca> <4AD8B9A9.7030306@otenet.gr> In-reply-to: <4AD8B9A9.7030306@otenet.gr> Cc: freebsd-questions@freebsd.org Subject: Re: GEOM label clarification X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Oct 2009 19:15:04 -0000 Manolis Kiagias wrote: > PJ wrote: > >> If I understand correctly from the manual, giving the labels their slice >> name (/dev/label/rootfs rather than /dev/ad4s1a) will assure that >> regardless of the disk, the boot will be from the disk being booted and >> not from another disk as happened to me recently - the fstab on disk ad4 >> was referncing ad12 so the boot was from ad12 rather than ad4. >> The handbook says: >> "By permanently labeling the partitions on the boot disk, the system >> should be able to continue to boot normally, even if the disk is moved >> to another controller or transferred to a different system. For this >> example, it is assumed that a single ATA disk is used, which is >> currently recognized by the system as ad0." >> If the disk is moved to another system, it may no longer be ad0... So >> will it still boot correctly? >> >> >> > > In short, yes. I do this routinely all the time. > Assuming of course that the device is connected to a controller that > FreeBSD recognizes. > This should be a non-issue for standard ATA/SATA disks. > > >> Or should the ufsid labels be used? >> >> >> > > The ufsid is also an option if you do not wish to create the labels > yourself. > The advantage of user-created labels is that they are not 'cryptic' like > the ufsid ones > and you may actually remember them :) > > >> Will both of these contortions work? >> >> > > Yes, both will do. > > Thanks for the reassurance. Now to start labelling. Uh.. I guess that means that if I label 1 disk and then clone it to several others, they wil all work from any system... Well, I guess I'll try it. Thanks again.