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Date:      Wed, 25 Oct 1995 20:50:37 -0400 (EDT)
From:      "Jonathan M. Bresler" <jmb@kryten.Atinc.COM>
To:        M C Wong <mcw@hpato.aus.hp.com>
Cc:        freebsd-questions@freefall.freebsd.org
Subject:   Re: [1.1.5.1] FreeBSD bootblock corrupted ?
Message-ID:  <Pine.3.89.9510252009.G24811-0100000@kryten.atinc.com>
In-Reply-To: <199510260041.AA274748074@hp.com>

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On Thu, 26 Oct 1995, M C Wong wrote:
>    I first suspected the mbr corruption, and ran fdisk /mbr upon boot
> up from a DOS boot disk. That doesn't fix the problem. Now I suspect

	if you did a dos 'fdisk /mbr', the boot blocks are gone.   this 
is the standare method of removing the boot blocks inorder to reinstall.

> my FreeBSD boot block gets corrupted. Can someone tell me the right
> command to re-install the bootblock, I remeber something that involve
> /usr/mdec/sdboot and /usr/mdec/bootsd, but can't remember the exact
> command.

	disklabel -w -B [sw]d0 

	man disklabel

Jonathan M. Bresler  jmb@kryten.atinc.com       | Analysis & Technology, Inc.  
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