From owner-freebsd-questions@FreeBSD.ORG  Fri Mar 11 22:05:36 2005
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 758)
	id EF82B16A4CF; Fri, 11 Mar 2005 22:05:36 +0000 (GMT)
Date: Fri, 11 Mar 2005 22:05:36 +0000
From: Kris Kennaway <kris@FreeBSD.org>
To: freebsd-questions@freebsd.org
Message-ID: <20050311220536.GL72527@hub.freebsd.org>
References: <813975182.20050311030827@wanadoo.fr>
	<200503111443.j2BEh2s02308@clunix.cl.msu.edu>
	<20050311184118.GF72527@hub.freebsd.org> <304320431.20050311220748@wanadoo.fr>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <304320431.20050311220748@wanadoo.fr>
User-Agent: Mutt/1.4.2.1i
Subject: Re: fsck errors on a running system that disappear in single-user
	mode
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 11 Mar 2005 22:05:37 -0000

On Fri, Mar 11, 2005 at 10:07:48PM +0100, Anthony Atkielski wrote:
> Kris Kennaway writes:
> 
> > Yes (single-user mode isn't the issue; the filesystem needs to be
> > unmounted or mounted read-only, or to be using UFS snapshots (in 5.x)
> > in order for fsck to have a consistent snapshot of the data that
> > doesn't change out from underneath it).
> 
> Are UFS snapshots enabled by default on 5.x?

Yes, that's what background fsck uses.

>  Is this related to the
> snapshots taken during dump operations with the L option, or is it
> different?

Same.  See the manpages for more information.

Kris