Re: UniDOS file copier

[lyleh888@yahoo.com (Lyle)]

"Charlie" <charlied@NOSPAMbboard.com> wrote in message news:<aac7k001diq@enews3.newsguy.com>...
> "Jeff Blakeney" <CUTjblakeney@sympatico.ca> wrote in message
> 3cc97163.10608099@news1.sympatico.ca">news:3cc97163.10608099@news1.sympatico.ca...
> 
> > >There was another OS written by Bob Sander-Cederlof (author of the S-C
> > >Assembler) that worked on 3.5 inch disks. It used a patched FID for file
> > >copying, but (and here my memory may be failing me) I think he used Drive
>  1
> > >to access the first 400k and Drive 2 to access the second 400k.  UniDOS
>  uses
> > >Drive 1 for the first 400k and Drive 3 for the second 400k on an 800k
>  disk.
> > >Drive 2 and Drive 4 seem to be active but unused in an 800k disk.
> >
> > I remember trying that DOS at some point as well.  Drive 2 and drive 4
> > were set up as the two 400K "partitions" on a second 3.5" drive if you
> > had two 3.5" drives hooked up.
> >
> > I didn't much like that way of dealing with it at the time as I only
> > had a single 3.5" drive and most software wouldn't let you put 3 or 4
> > in as drive numbers.
> 
> Yes, I believe that is the problem when using Bob Sander-Cederlof's patched
> FID.  If I remember correctly it only allowed drives 1 and 2.
> 
> > Just off the top of my head I can think of 3 DOS 3.3 clones that I
> > believe allowed using 3.5" disks as multiple 400K drives:  UniDOS,
> > AmDOS and OzDOS.  I never really used any of them, just tried them
> > out.
> 
> As I mentioned there was also one by Bob Sander-Cederlof (I don't know if it
> even had a name) and I have read there was one by Glen Bredon (Master DOS
> maybe?).
> 
> Charlie

The A2-Central disk of August 1994 (9408) has a freeware version of
OZ.DOS by Richard Bennett.  The docs on the A2 disk say that it works
with UniDos.  I unpacked OzDos to a 3.5" disk and booted it.  There
doesn't seem to be any documentation on the disk.  But there is a FID+
on the disk.

I don't have any UniDos disks to test it on.  What is interesting is
that I have an original UniDos manual, but can't find the original
floppy.

If anyone needs OzDos and can't find it elsewhere, I'd email the .shk
file. I'm using a Mac for email, so if I need to ZipIt or Stuffit,
too, let me know.

Lyle