Message-ID: <00b801c02814$cc72b3a0$0400000a@alain-nb>
From: "Alain" <alainm AT pobox DOT com>
To: <opendos AT delorie DOT com>
Subject: Re: DRDOS FDISK
Date: Tue, 26 Sep 2000 20:33:47 -0300
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Reply-To: opendos AT delorie DOT com

Hi,

I have successfully added a DR-DOS partition to a MS-DOS 7.1 (win98)
system, but I didn't use DR-DOS's fdisk    ;-)

BTW, I lost the message with the information about what should be in
the OEM signature to be MS-DOS compatible. Can someone please
resend it to me?   :)

I found a problem in DR-DOS about the dive letters assigment. Let me
describe it: if I have a drive (only one) with _two_ primary partitions and
an extended partition, MS-DOS uses the active partition as C:, the
extended partition as D: and the other extended partition as E:. This is a
general rule: extra primary partitions go at the end. With DR-DOS, the
first extended partition is C:, and the second is D:, leaving the extended
partition as E:. The biggest problem is that if you put DR-DOS in the
second partition it _cannot_ boot as it changes from C: to D: in the middle
of the boot process. So if you want to have more than one partition
to select which is active, DR-DOS HAS TO BE in the first one. I don't
know for sure, but this may also afect DR-DOS+Linux in the same drive...

Alain

>Hello Alainm,
>     I wasn't calling Msdos trash I was speaking of the condition that the
>data on the shared drives would be in if both O-S's accessed that same
>specific drive.  Anyways, I think you misunderstood my use of "trash".  It
>seems that at least one person remarked that they were successfully sharing
>the drives with both Ms and Dr-dos's so it's still a little unclear but
>perhaps it's not worth the hassle to try adding Ms dos to a Drdos system?
>     TAke care,
>      Mark
>
>
>On 2000-09-25 opendos AT delorie DOT com said:
>   >>Does this mean then that if you had a drive with Drdos #703
>   >>operating and used a bootmanger to install msdos 6.22 the
>   >partitions set-up by Drdos could
>   >>likely become trashed when booting to msdos and read/write on
>   >>those same shared drives?
>   >This is not the first time I hear about this problem. THIS IS A BUG.
>   >It's no point calling M$-DOS trash or crap, one thing _every_ OS
>   >should do is respect other OSes..
>   >Alain
>
>