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Date:      Wed, 24 Mar 1999 08:53:27 +1030
From:      Greg Lehey <grog@lemis.com>
To:        Chris Piazza <cpiazza@home.net>
Cc:        questions@FreeBSD.ORG
Subject:   Re: harddrive woes (!)
Message-ID:  <19990324085327.F425@lemis.com>
In-Reply-To: <XFMail.990322231721.cpiazza@home.net>; from Chris Piazza on Mon, Mar 22, 1999 at 11:17:21PM -0800
References:  <19990323174001.K442@lemis.com> <XFMail.990322231721.cpiazza@home.net>

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On Monday, 22 March 1999 at 23:17:21 -0800, Chris Piazza wrote:
> On 23-Mar-99 Greg Lehey wrote:
>> On Monday, 22 March 1999 at 22:34:37 -0800, Chris Piazza wrote:
>>
>> This is telling you that the sector you're looking for on the disk
>> simply isn't there.  This isn't FreeBSD, it's the drive itself.
>>
>>> It seems to me like FreeBSD spammed my harddrive with something, but
>>> what I don't understand is why other OS' do not even think twice
>>> about it.
>>
>> There are two possibilities here:
>>
>> 1.  The other OSs don't try to access this sector.
>> 2.  They ignore the error.
>
> My problem with this is I can't even write 100k on to this partition (about 3.3
> gigs, at the end of the drive) in FreeBSD, yet I've filled the drive in both
> Linux and FreeBSD =/.

Filling the drive doesn't mean you have written every sector.

>> Hopefully (1) is the correct answer :-)
>>
>>> Is there any way to wipe this part of the drive "totally" clean?
>>
>> Some format utilities can do this for you.  Unfortunately FreeBSD
>> doesn't supply anything to format IDE drives.  Does your BIOS have
>> something?
>>
>
> It has the 'low level format', of course ;).  And this error has survived
> through that.

It's not much of a low level format if it doesn't detect unrecoverable
defects.  There's a program called bad144 which we used to use for MFM
drives; you might like to investigate whether it can help you.

Greg
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