From owner-freebsd-fs@FreeBSD.ORG Sat Oct 2 14:21:47 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F6C7106566B for ; Sat, 2 Oct 2010 14:21:47 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta02.emeryville.ca.mail.comcast.net (qmta02.emeryville.ca.mail.comcast.net [76.96.30.24]) by mx1.freebsd.org (Postfix) with ESMTP id 11DCD8FC19 for ; Sat, 2 Oct 2010 14:21:46 +0000 (UTC) Received: from omta23.emeryville.ca.mail.comcast.net ([76.96.30.90]) by qmta02.emeryville.ca.mail.comcast.net with comcast id Dq5S1f0031wfjNsA2qMmGY; Sat, 02 Oct 2010 14:21:46 +0000 Received: from koitsu.dyndns.org ([98.248.41.155]) by omta23.emeryville.ca.mail.comcast.net with comcast id DqMl1f00A3LrwQ28jqMlXu; Sat, 02 Oct 2010 14:21:46 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 713489B418; Sat, 2 Oct 2010 07:21:45 -0700 (PDT) Date: Sat, 2 Oct 2010 07:21:45 -0700 From: Jeremy Chadwick To: Phan Quoc Hien Message-ID: <20101002142145.GA70541@icarus.home.lan> References: <20101002132548.00002898@unknown> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-fs@freebsd.org, Ronald Klop Subject: Re: Data loss when hard shutdown! X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Oct 2010 14:21:47 -0000 On Sat, Oct 02, 2010 at 08:26:48PM +0700, Phan Quoc Hien wrote: > On Sat, Oct 2, 2010 at 7:59 PM, Ronald Klop wrote: > > > On Sat, 02 Oct 2010 14:49:50 +0200, Phan Quoc Hien > > wrote: > > > > Thank for your respond. I have checked my fstab file. I didn't see any > >> option about SoftUpdates for my / partition. > >> > > > > When you give the command 'mount' you will see several lines like this. > > > > /dev/ad8s1d on /var (ufs, local, soft-updates) > > > > Softupdates can be enabled/disabled with the command tunefs. See 'man > > tunefs'. > > > > When I run mount command. it shown: > $ mount > /dev/ad0s1a on / (ufs, local) > devfs on /dev (devfs, local, multilabel) I didn't see anyone mention this to you in the thread, but: By default in FreeBSD (during the installation phase), softupdates are explicitly **not** applied to the root filesystem. This is intentional, but the reason for it I do not know. I imagine it's justified though. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |