Message-ID:	<01FD6EC775C6D4119CDF0090273F74A4021FE4@emwatent02.meters.com.au>
From:	"da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
To:	"'opendos AT delorie DOT com'" <opendos AT delorie DOT com>
Subject:	RE: [ot] disk geometry mismatch?
Date:	Thu, 15 Mar 2001 09:56:41 +1100
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2448.0)
Reply-To:	opendos AT delorie DOT com

Yes, it may be a BIOS limitation problem, with the *second* MB!

Your problems with the *first* MB sound like hardware, instead.

You can tell if you had DM installed by trying to remember one
thing : During boot-up (first MB), did a rectangular text box
appear, prompting you to press the space bar if you wanted to
boot from floppy (you get a one or two second pause, before
booting continues)? I'm sure you didn't, otherwise you would
have noticed this (and the Disk Manager title in the text box).
So, I don't think you have DM installed on the HD. I'm also
pretty sure your first MB didn't need it.

The 4G limit is only one of many limits, and not a particularly
common one, at that. The more common limit is simply the
1024 cylinder limit, which means the 504/528M limit, which
can be rather *less* than this amount, if the CHS parameters
are set to their native values (ie. multiply 512 bytes, by 1023
cylinders, by the number of heads, by the number of sectors). 

Joe.

> -----Original Message-----
> From:	Rob McGee [SMTP:i812 AT iname DOT com]
> Sent:	Wednesday, 14 March 2001 20:23
> To:	opendos AT delorie DOT com
> Subject:	Re: [ot] disk geometry mismatch?
> 
> On Wed, Mar 14, 2001 at 06:07:53PM +1100, da Silva, Joe wrote:
> > I always recommend to read :
> > "http://web.inter.nl.net/hcc/J.Steunebrink/bioslim.htm"
> 
> Thanks Joe. Do you think this was a BIOS limitation problem? I doubt it.
> The deceased motherboard was actually more recent than the one the drive
> is on now, and both BIOS' recognized the drive.
> 
> Perhaps there was Disk Manager or other such abomination on it? I really
> would not know. Is there something I could look for in the raw data on
> the disk, to possibly determine if a disease like that was installed?
> 
> I looked at the 4GB limit part, but although this drive is >4GB that
> does not seem to apply. This is a 15-head drive, but from reading that I
> understand that the 4GB limit only applies to 16-head drives.
> 
> Thanks for the input.
> 
>     Rob - /dev/rob0

- Raw text -