Re: Looking for a couple of On-Line Systems disk images...

["Michael J. Mahon" <mjmahon@aol.com>]

Chris Alaimo wrote:
> I messed around with MUFFIN, but the copied disk doesn't work.

It wouldn't, since MUFFIN copies files from a 13-sector disk to
a 16-sector disk.  Any file protection would 1) prevent this from
working, and 2) not be preserved in a 16-sector copy, so the copy
would fail the protection test(s).

> In bit-copying the disc, what parameters would I use?

First try a simple full-disk bit copy.

If you do a hi-res scan of the disk, you will see the self-sync
marks displayed and can count the sectors on each track--and also
find tracks that are not formatted at all.

Also check for any SoftKeys that apply to the disk in the volumes
Mike Maginnis recently posted.

> Chris
>
> Michael J. Mahon wrote:
>
> > Chris Alaimo wrote:
> >
> > > These are 5.25" disks.  I believe the file system is DOS 3.2 (these are
> > > from early in the A2's life cycle).  I tried using the disk
> > > verification option in Copy II+, and it gave a track error for every
> > > track.
> > >
> > > ERROR TRACK $00
> > > SECTOR $0 1 2 3 4 5 6 7 8 9 A B C D E F
> > >
> > > And so on for each successive track...
> >
> > That's a 13-sector disk, so you'll need to bit-copy the disk.
> >
> > Since that was very early, it's likely that any protection
> > is pretty simple.
> >
> > BTW, your 16-sector can read the disk fine, but if you want to
> > *boot* it, you'll need to pre-boot BOOT13 from the system master.
> >
> >
> > > Michael J. Mahon wrote:
> > >
> > >
> > > > Chris Alaimo wrote:
> > > >
> > > >
> > > > > OK, Locksmith didn't work.  Does anyone have any insight into how I can
> > > > > copy this disk?
> > > >
> > > > Getting through copy protection is a really fun game!  Some are easy,
> > > > and some are devilishly clever.
> > > >
> > > > I don't know what kind of disks these are--5.25" or 3.5"--or what
> > > > file system is used:  DOS 3.3, ProDOS, or "other".  That often
> > > > gives some guidance about likely protection schemes.
> > > >
> > > > When you attempt a "disk verify", what result(s) do you get?
> > > >
> > > > -michael
> > > >
> > > > New, faster SUDOKU v2.0 solver for Apple II's!
> > > > Home page:  http://members.aol.com/MJMahon/
> > > >
> > > > "The wastebasket is our most important design
> > > > tool--and it's seriously underused."
> >
> > --
> >
> > -michael
> >
> > New, faster SUDOKU v2.0 solver for Apple II's!
> > Home page:  http://members.aol.com/MJMahon/
> >
> > "The wastebasket is our most important design
> > tool--and it's seriously underused."


--

-michael

New, faster SUDOKU v2.0 solver for Apple II's!
Home page:  http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it's seriously underused."