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Date:      Mon, 8 Jul 2002 15:10:49 -0600
From:      "John Nielsen" <hackers@jnielsen.net>
To:        "Julian Elischer" <julian@elischer.org>, <hackers@FreeBSD.ORG>
Subject:   Re: offtopic: low level format of IDE drive.
Message-ID:  <017901c226c3$ef8b09a0$0900a8c0@max>
References:  <Pine.BSF.4.21.0207081308410.29644-100000@InterJet.elischer.org>

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Julian Elischer <julian@elischer.org> wrote:
> One of my FreeBSD development boxes had a hernia last week when it lost
> power while writing to disk. The drive wrote out garbage to a track.
>
> I want to reformat the drive, (low level) but the bios doesn't have any
> support to do this (In the past That is how I did this).
> The machiine has 1 CD drive and no floppy..
>
> anyone with any ideas as to how one can reformat a hard drive feel free to
> lend me a clue..

Boot from a fixit CD, and use dd to zero out the whole disk, e.g.:

dd if=/dev/zero of=/dev/ad0c

JN


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