From owner-freebsd-questions@FreeBSD.ORG Thu Sep 4 14:38:15 2003 Return-Path: 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 70A8D16A4BF for ; Thu, 4 Sep 2003 14:38:15 -0700 (PDT) Received: from fep3.cogeco.net (smtp.cogeco.net [216.221.81.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id A3A5243FDF for ; Thu, 4 Sep 2003 14:38:14 -0700 (PDT) (envelope-from pnmurphy@cogeco.ca) Received: from earth.upton.net (d141-18-230.home.cgocable.net [24.141.18.230]) by fep3.cogeco.net (Postfix) with SMTP id 8E1B83E23; Thu, 4 Sep 2003 17:38:13 -0400 (EDT) Date: Thu, 4 Sep 2003 17:38:04 -0400 From: Paul Murphy To: Matthew Seaman Message-Id: <20030904173804.6000c9cb.pnmurphy@cogeco.ca> In-Reply-To: <20030904121125.GC88888@happy-idiot-talk.infracaninophile.co.uk> References: <20030903181348.5cbfcabb.pnmurphy@cogeco.ca> <200309031800.30413.dkelly@HiWAAY.net> <20030904121125.GC88888@happy-idiot-talk.infracaninophile.co.uk> X-Mailer: Sylpheed version 0.9.3claws (GTK+ 1.2.10; i386-portbld-freebsd4.8) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="pgp-sha1"; boundary="Oh,+L=.+gByh=Jnj" cc: David Kelly cc: FreeBSD-Questions@freebsd.org Subject: Re: Undo MBR X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Sep 2003 21:38:15 -0000 --Oh,+L=.+gByh=Jnj Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 4 Sep 2003 13:11:25 +0100 Matthew Seaman wrote: > On Wed, Sep 03, 2003 at 06:00:30PM -0500, David Kelly wrote: > > On Wednesday 03 September 2003 05:13 pm, Paul Murphy wrote: > > > I have just installed FBSD-CURRENT on a test box. During install > > > I > > > unwittingly installed a BootMgr entry for the second HDD (it will > > > just be a data disk, no need to boot from it). > > > > > > If I do 'dd if=/dev/zero of=/dev/rad2 count=15' will this "erase" > > > the BootMgr or will I have to redo Fdisk and etcetera. There is no > > > data on the disk yet so this would be no hardship, but is there a > > > "proper" way of doing what I want? > > > > > > > > > Just to clarify, upon booting I get: > > > > > > F1 FreeBSD > > > F5 Drive 1 > > > > > > but I just want to boot straight into FreeBSD, no "dual-boot". > > > > I don't know why you are fretting about this prompt and momentarily > > pause in the boot process. Also think you are confused about the MBR > > thing on the 2nd drive. > > > > The prompt above is coming from your first HD. If the BIOS did not > > know about the 2nd drive the F5 entry would not be there and the > > FreeBSD F1 entry would still be there. You could hide this prompt by > > retuning the MBR to pause 0 or 1 seconds. Zero might be infinite. > > > > To eliminate the prompt, wipe the HD and reinstall "dangerously > > dedicated." The result will be a disk which lacks the headers which > > allows other x86 OS's to understand what/how the disk is used. > > Errr... That's a little excessive. The quick way to remove the > FreeBSd boot manager and restore a standard MBR is: > > # boot0cfg -B -b /boot/mbr ad0 > > (The OP might want to do that on his data disk ad2 as well). No > changes to the filesystems on those disks should be necessary. > THAT'S what I was looking for! I knew it should have something to do with boot0cfg, just didn't read the man page closely enough I guess. -- Cogeco ergo sum --Oh,+L=.+gByh=Jnj Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/V7DDTv5Mxsi/WPMRAqdzAJ4pd8kVCaPIqfRxxG+ImKZWogMDLQCgqsI4 pLLKleaqfAG7zBYP0utZfB8= =Mej9 -----END PGP SIGNATURE----- --Oh,+L=.+gByh=Jnj--