Mail Archives: opendos/2002/01/13/19:17:09
Please see below ...
Joe.
> -----Original Message-----
> From: Matthias Paul [SMTP:Matthias DOT Paul AT post DOT rwth-aachen DOT de]
> Sent: Friday, January 11, 2002 5:44 PM
> To: opendos AT delorie DOT com
> Subject: Re: Bugs in DR-DOS 7.03
>
> On 2002-01-10, Joe da Silva wrote:
>
> > It changes the OEM ID to this strange "xxxxxIHC" string.
>
> Yep, this is exactly what I have observed as well.
>
> In some sense, it´s good to see the same thing is happening
> on the opposite side of our planet as well, although I would
> be happier if it would not happen at all, of course... ;-)
>
> Right now, I have no idea, what this "IHC" stands for and
> which component actually creates it. (It might also depend
> on the machines ROM-BIOS. Who´s the manufacturer of your
> BIOS?)
>
[Joe da Silva]
Award.
> > However, I had never noticed this before, because the diskettes
> > continue to work properly and never produces "read error" or
> > "floppy not formatted" messages.
>
> Even if you remove and then re-insert them in the drive?
>
[Joe da Silva]
Yes. Like I said, that is why I had never noticed this before.
> As far as I recall, this would indicate that the floppies
> have not been formatted under DR-DOS.
>
[Joe da Silva]
What else writes "DRDOS 7" as it's OEM ID??? <G>
> > I also tried changing the OEM ID from "xxxxxIHC" to "DRDOS 7."
> > (similar to "DRDOS 7" but without the extra space and with added
> > decimal point), but this was still converted back to "xxxxxIHC".
>
> The correct OEM format is "xxxxxy.y", that is "DRDOS7.0" would be
> fine, but not "DRDOS 7.". But reading the high "7.0" version number
> might confuse Windows as well. Since the DR-DOS BPB matches those
> of PC DOS 3.3, the OEM string should really be "IBM 3.3", just as
> it has been in older issues of DR DOS.
>
[Joe da Silva]
Well, I have tried "DRDOS7.0", "DRDOS5.0", "IBM 3.3",
"MSDOS7.0", "MSDOS5.0", "MSDOS3.3" ... In all cases,
W95B re-writes this as "xxxxxIHC". I think it rewrites the
whole boot sector, actually.
BTW, Formatting under W95B "DOS box" creates a boot sector
with "xxxxxIHC" as the OEM ID. I can change the "xxxxx" and
this is not changed again by W95B, so it seems that it only
cares about the "IHC" part of the OEM ID.
Perhaps IHC stands for "I Hate Competition"? ;-)
> This should fix the problem. Formatting the floppy under MS-DOS
> should also fix the problem. Does it?
>
> (Well, it´s a while ago, when I investigated this, and I will have
> to re-read my stuff to be absoletely sure about the effects...)
>
> 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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