From owner-freebsd-geom@FreeBSD.ORG Sun Feb 6 19:05:11 2005 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C242C16A4CE; Sun, 6 Feb 2005 19:05:11 +0000 (GMT) Received: from merlin.alerce.com (w094.z064001164.sjc-ca.dsl.cnc.net [64.1.164.94]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5187243D49; Sun, 6 Feb 2005 19:05:11 +0000 (GMT) (envelope-from hartzell@kestrel.alerce.com) Received: from merlin.alerce.com (localhost [127.0.0.1]) by merlin.alerce.com (Postfix) with ESMTP id B7D0B209A; Sun, 6 Feb 2005 11:00:37 -0800 (PST) Received: from satchel.alerce.com (w092.z064001164.sjc-ca.dsl.cnc.net [64.1.164.92]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) Authority" (verified OK)) by merlin.alerce.com (Postfix) with ESMTP id 70397208C; Sun, 6 Feb 2005 11:00:37 -0800 (PST) Received: from satchel.alerce.com (localhost [127.0.0.1]) by satchel.alerce.com (8.13.1/8.13.1) with ESMTP id j16J58tj006042 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sun, 6 Feb 2005 11:05:08 -0800 (PST) (envelope-from hartzell@satchel.alerce.com) Received: (from hartzell@localhost) by satchel.alerce.com (8.13.1/8.13.1/Submit) id j16J58wi006039; Sun, 6 Feb 2005 11:05:08 -0800 (PST) (envelope-from hartzell) From: George Hartzell MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16902.27236.71619.138367@satchel.alerce.com> Date: Sun, 6 Feb 2005 11:05:08 -0800 To: freebsd-geom@freebsd.org In-Reply-To: <16901.26814.588055.457273@satchel.alerce.com> References: <16901.26814.588055.457273@satchel.alerce.com> X-Mailer: VM 7.17 under 21.4 (patch 15) "Security Through Obscurity" XEmacs Lucid X-Virus-Scanned: ClamAV using ClamSMTP cc: Pawel Jakub Dawidek cc: freebsd-stable@freebsd.org Subject: Hardcoding gmirror provider [was Re: Problem with migrating...] X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: hartzell@kestrel.alerce.com List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Feb 2005 19:05:11 -0000 George Hartzell writes: > [...] > I'd like to migrate the installation to a new box that uses ide disks, > and am basing my attempts on the > > "GEOM mirror Approach 2: Single Slice, Preferred, More Flexible" > > portion of these instructions: > > http://people.freebsd.org/~rse/mirror/ > > Although the disk that I ended up with was bootable in the new system, > I noticed that the slice table was messed up. After a couple of > tries, here's what I've found: > > The machine is: > > FreeBSD merlin.alerce.com 5.3-RELEASE-p2 FreeBSD 5.3-RELEASE-p2 #9: Sat Dec 18 12:38:37 PST 2004 root@merlin.alerce.com:/usr/obj/usr/src/sys/MERLIN i386 > [...] I've figured out that if I hardcode the provider when I label my mirror everything seems to work out, which leaves me confused. Here's the label command I was using (modified for my situation): gmirror label -v -n -b round-robin disk0 /dev/ad0s1 After running that command, "gmirror list" tells me that the consumer for disk0 is "Name: ad0", even though I've specified ad0s1 above and when I bsdlabel the disk the slice table gets clobbered. If I do this instead: gmirror label -v -n -h -b round-robin disk0 /dev/ad0s1 then "gmirror list" tells me that the consumer is "Name: ad0s1" and bsdlabel doesn't stomp on the slice table. Am I [just] confused, and I tripping over a sharp piece of exposed code, or is this a bug. FWIW, I get the same behaviour on: FreeBSD merlin.alerce.com 5.3-RELEASE-p2 FreeBSD 5.3-RELEASE-p2 #9: Sat Dec 18 12:38:37 PST 2004 root@merlin.alerce.com:/usr/obj/usr/src/sys/MERLIN i386 and Freesbie 1.1 g.