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Date: Tue, 27 Jan 2004 09:52:30 -0800
From: Chris Pressey <cpressey@catseye.mine.nu>
To: Ruben de Groot <mail25@bzerk.org>, b1henning@hotmail.com
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cc: freebsd-questions@FreeBSD.ORG
Subject: Re: MBR
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On Tue, 27 Jan 2004 17:10:35 +0100
Ruben de Groot <mail25@bzerk.org> wrote:

> On Tue, Jan 27, 2004 at 04:49:02PM +0100, Namik Dala typed:
> > On Tue, Jan 27, 2004 at 09:10:51AM -0600, Brian H wrote:
> > > Currently I have the BSD boot loader running in my MBR, but since I only 
> > > have BSD on my system I would like to replace it with the standard MBR. Is 
> > > there a way with unix to safely reset the MBR?
> > 
> > This
> > 
> >   dev=/dev/ad0 # change this
> >   dd if=$dev of=/boot/mbr.backup bs=512 count=1
> >   dd if=/boot/mbr of=$dev bs=512 count=1
>  
> Don't do this. It'll overwrite your partition table. Use:
> 
> fdisk -B [-b /boot/mbr] /dev/ad0
> 
> instead.
> 
> Ruben

Can't you accomplish the same thing (more modestly) with

  boot0cfg -b /boot/mbr /dev/ad0

?

-Chris