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Message-ID:	<000201c187b1$58270d40$c03dfea9@atlantis>
From:	"Matthias Paul" <Matthias DOT Paul AT post DOT rwth-aachen DOT de>
To:	<opendos AT delorie DOT com>
References:	<DD5711D5247CD4118B280008C79140060589927F AT sharp DOT itsd DOT gov DOT bc DOT ca> <3C1E51C6 DOT 8ABAFDF5 AT cornell DOT edu>
Subject:	Re: Big Drives (was: Pc-Dos 2000)
Date:	Tue, 18 Dec 2001 11:45:19 +0100
Organization:	University of Technology, RWTH Aachen, Germany
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On 2001-12-17, "Alan S." <as173 AT cornell DOT edu> wrote:

> I'm under the impression that the MS-DOS 6.22 FDISK can only "see" up to
> 8GB (with max partition sizes of 2GB?) EVEN IF THE BIOS SUPPORTS MORE
> THAN 8GB

AFAIK DiskManager´s DDO is loading a small BIOS extension which fakes
multiple physical drives with up to 8 Gb each instead of one huge drive.
This way, you can use larger drives even under older operating systems,
be them DR-DOS or other DOS flavours - there is no direct correlation
with any specific DOS version.

However, you may have problems with other, in particular protected mode
operating systems, which do not properly handle the load image of the
BIOS extension while the OS loads, or - as protected mode OS - bypass
this BIOS extension.

I´m not sure if DiskManager is compatible with for example Linux or
NetWare or NT. I too only use it to overcome the 512 Mb barrier
(on an old 386sx test machine).

Greetings,

 Matthias

-- 

 <mailto:Matthias DOT Paul AT post DOT rwth-aachen DOT de>; <mailto:mpaul AT drdos DOT org>
 http://www.uni-bonn.de/~uzs180/mpdokeng.html; http://mpaul.drdos.org

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