From owner-freebsd-questions@FreeBSD.ORG Tue Mar 14 04:56:09 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A008816A400 for ; Tue, 14 Mar 2006 04:56:09 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5DFC743D48 for ; Tue, 14 Mar 2006 04:56:09 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id 446F61A4DD5; Mon, 13 Mar 2006 20:56:09 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 8DD9051954; Mon, 13 Mar 2006 23:56:08 -0500 (EST) Date: Mon, 13 Mar 2006 23:56:08 -0500 From: Kris Kennaway To: "Tamouh H." Message-ID: <20060314045608.GA7378@xor.obsecurity.org> References: <4416483E.70600@ywave.com> <20060314044240.C6F8543D46@mx1.FreeBSD.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="VS++wcV0S1rZb1Fb" Content-Disposition: inline In-Reply-To: <20060314044240.C6F8543D46@mx1.FreeBSD.org> User-Agent: Mutt/1.4.2.1i Cc: freebsd-questions@freebsd.org Subject: Re: how does a system come up if you disable background fsck ? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Mar 2006 04:56:09 -0000 --VS++wcV0S1rZb1Fb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Mar 13, 2006 at 11:42:45PM -0500, Tamouh H. wrote: > =20 > >=20 > > Ensel Sharon wrote: > > > I have disabled background fsck in my /etc/rc.conf with: > > >=20 > > > background_fsck=3D"no" > > >=20 > > > But I am curious - what does this mean for the system if the system= =20 > > > crashes ? > > >=20 > > > Does this mean that the system will wait for all non root=20 > > partitions=20 > > > to fully fsck before coming up into multi-user mode ? > > >=20 > > > OR > > >=20 > > > Does it mean the system will boot up quickly into=20 > > multi-user mode, but=20 > > > the non-root partitions will just not be mounted and/or=20 > > usable until I=20 > > > fsck them by hand ? > > >=20 > > > thanks. > >=20 > > The former, as I can say with ample experience this morning.=20 > > (stupid USB > > panic) > >=20 > > HTH, > > Micah >=20 > I find both ways useless. If fsck background starts after a crash it lite= rally slows down the machine to a halt rendering it unusable. >=20 > If enable fsck to check the system prior to mounting device, it will take= at least 15-30 minutes for it to complete (in the event of a hard crash). = Which also translates to a downtime. >=20 > disabling fsck on the long run is a bad choice too as eventually the syst= em files will become corrupt beyond repair. >=20 > What is the solution here ? Invest in a UPS? Kris --VS++wcV0S1rZb1Fb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD8DBQFEFkznWry0BWjoQKURAr02AKC9pRgiBTaUCbuWPoJFaf054oLy5gCfaZkO R//wWh6z4VOXAgFxCiTcjlM= =fV/3 -----END PGP SIGNATURE----- --VS++wcV0S1rZb1Fb--