From owner-freebsd-current@FreeBSD.ORG  Tue Sep 11 21:53:00 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 4C4FC16A417
	for <current@freebsd.org>; Tue, 11 Sep 2007 21:53:00 +0000 (UTC)
	(envelope-from bzeeb-lists@lists.zabbadoz.net)
Received: from mail.cksoft.de (mail.cksoft.de [62.111.66.27])
	by mx1.freebsd.org (Postfix) with ESMTP id 1CEED13C467
	for <current@freebsd.org>; Tue, 11 Sep 2007 21:53:00 +0000 (UTC)
	(envelope-from bzeeb-lists@lists.zabbadoz.net)
Received: from localhost (amavis.str.cksoft.de [192.168.74.71])
	by mail.cksoft.de (Postfix) with ESMTP id 115D141C76D
	for <current@freebsd.org>; Tue, 11 Sep 2007 23:35:06 +0200 (CEST)
X-Virus-Scanned: amavisd-new at cksoft.de
Received: from mail.cksoft.de ([62.111.66.27])
	by localhost (amavis.str.cksoft.de [192.168.74.71]) (amavisd-new,
	port 10024) with ESMTP id YPNWslm8l5GT for <current@freebsd.org>;
	Tue, 11 Sep 2007 23:35:05 +0200 (CEST)
Received: by mail.cksoft.de (Postfix, from userid 66)
	id B308241C75E; Tue, 11 Sep 2007 23:35:05 +0200 (CEST)
Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net
	[10.111.66.10])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by mail.int.zabbadoz.net (Postfix) with ESMTP id E2AE9444885
	for <current@freebsd.org>; Tue, 11 Sep 2007 21:31:49 +0000 (UTC)
Date: Tue, 11 Sep 2007 21:31:49 +0000 (UTC)
From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
X-X-Sender: bz@maildrop.int.zabbadoz.net
To: FreeBSD current mailing list <current@freebsd.org>
Message-ID: <20070911212720.K58095@maildrop.int.zabbadoz.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: 
Subject: mount -uw / does not work in boot -s
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
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: Tue, 11 Sep 2007 21:53:00 -0000

Hi,

if you boot -s on a HEAD and try to mount -uw / it will fail to update
the mount if you do not have a /etc/fstab. The fstab part is the key
to this. With an /etc/fstab everything seems to work just smoothly but
how to touch the fstab if you cannot mount the fs rw?

Neither
 	mount -uw /
 	mount -u -o rw /
 	mount -uw /dev/... /
 	mount -u -o rw /dev/... /

work. The versions with the /dev/... / do not seem to give an error
message but a mount afterwards shows that / is still read-only.

The filesystem was clean upon boot and no fsck was run (I know there
is another problem after fsck I think).

-- 
Bjoern A. Zeeb                                 bzeeb at Zabbadoz dot NeT
Software is harder than hardware  so better get it right the first time.