Need help with retrieving data from a DOS 2.11 formated

From: Mark Nias <markn_at_mr2.net>
Date: Mon May 7 18:09:11 2001

try using a real 720k 3.5" floppy and format it on the DOS 2 system, you
might have better luck reading it

failing that you can try covering the HD hole (the one opposite to the
write-protect tab) on a high density disk and formatting it as a 720k...
though HD disks dont often work well as 720k disk because the media is
actually different, but it's worth a try

mark


=======================
Mark Nias
http://www.mr2.net
http://www.marknias.com
=======================

> -----Original Message-----
> From: owner-classiccmp_at_classiccmp.org
> [mailto:owner-classiccmp_at_classiccmp.org]On Behalf Of Tony Duell
> Sent: 07 May 2001 23:18
> To: classiccmp_at_classiccmp.org
> Subject: Re: Need help with retrieving data from a DOS 2.11 formated
>
>
> >
> > --============_-1222849775==_ma============
> > Content-Type: text/plain; charset="us-ascii" ; format="flowed"
> >
> > It sounds to me like it would be quite a non-standard format,
> > as I don't believe DOS 2.11 supports the 1.44meg format. Anyone
> > else?
>
> Yes, that bothered me as well....
>
> Also, most machines that run MS-DOS 2.11 are XTs. Which may well not
> support high density drives at all (yes, I know there are high density
> controllers for XT machines, but they're not that common).
>
> I am wondering if this is a 1.44Mbyte disk at all. It might be formated
> as a 720K disk. In which case a machine with a high density drive and
> controller might get very confused.
>
> Also, does MS-DOS 2.11 know about anything other than 360K disks? It
> might only be using the first 40 cylinders of the disk (and %deity knows
> what it's doing to the directory).
>
> -tony
>
Received on Mon May 07 2001 - 18:09:11 BST

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