From owner-freebsd-current@FreeBSD.ORG  Sat May  7 16:54:38 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 00F5C16A4DB; Sat,  7 May 2005 16:54:38 +0000 (GMT)
Received: from pne-smtpout2-sn2.hy.skanova.net
	(pne-smtpout2-sn2.hy.skanova.net [81.228.8.164])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 704C443D7B; Sat,  7 May 2005 16:54:36 +0000 (GMT)
	(envelope-from daniel_k_eriksson@telia.com)
Received: from sentinel (195.198.193.104) by pne-smtpout2-sn2.hy.skanova.net
	(7.1.026.7)
	id 42662CF100485E55; Sat, 7 May 2005 18:54:35 +0200
From: "Daniel Eriksson" <daniel_k_eriksson@telia.com>
To: <freebsd-current@FreeBSD.org>
Date: Sat, 7 May 2005 18:56:25 +0200
Organization: Home
Message-ID: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAA0VcX9IoJqUaXPS8MjT1PdsKAAAAQAAAA8oY44MHi8EinID0KyGY7zwEAAAAA@telia.com>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-Mailer: Microsoft Office Outlook, Build 11.0.6353
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527
Thread-Index: AcVTJbR/2uv01v3+QRSXuHpINNUfRA==
cc: 'Pawel Jakub Dawidek' <pjd@FreeBSD.org>
Subject: geom_mirror for root partition, not possible on recent CURRENT?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 07 May 2005 16:54:38 -0000


I decided to play around with geom_mirror to see if it is anything I could
use on one of my servers. After installing 5.4-RC4 and hooking it up to
mirror the entire disk (mostly following the process described at
http://dannyman.toldme.com/2005/01/24/freebsd-howto-gmirror-system/) I went
ahead and cvsuped the latest CURRENT (2005.05.07.01.00.00) and rebuilt the
system.

After installing the new CURRENT kernel, the system is unable to find the
geom_mirror device during boot (old 5.4-RC4 kernel finds it just fine). The
difference is in the details I guess:

5.4-RC4:
--------
...
GEOM_MIRROR: Device gm0 created (id=1741615369).
GEOM_MIRROR: Device gm0: provider da0 detected.
GEOM_MIRROR: Device gm0: provider da1 detected.
GEOM_MIRROR: Device gm0: provider da1 activated.
GEOM_MIRROR: Device gm0: provider da0 activated.
GEOM_MIRROR: Device gm0: provider mirror/gm0 launched.
Mounting root from ufs:/dev/mirror/gm0s1a

6-CURRENT:
----------
...
GEOM_MIRROR: Device gm0 created (id=1741615369).
GEOM_MIRROR: Device gm0: provider da0 detected.
GEOM_MIRROR: Device gm0: provider da1 detected.
Trying to mount root from ufs:/dev/mirror/gm0s1a

Manual root filesystem specification:
...

mountroot> ?

List of GEOM managed disk devices:
  da1 da0


To me it looks like gmirror never gets around to activating and launching
the mirror under CURRENT. Booting with verbose logging adds no output to the
6-CURRENT case. Am I missing some critical step needed to get gmirror
working on CURRENT that isn't needed on STABLE?

/Daniel Eriksson