You CAN copy Mac disks on a IIgs
Willi Kusche
To make a long story short, you can copy Mac disks with a IIgs and
a couple of 3.5 inch Apple drives. HFS disks can be copied with any
volume copy utility. MFS disks (400K) can be copied by simply copying
the first 800 blocks. I verified copies of both kinds by booting from
a 3.5 inch Apple disk connected to the back of a Mac SE. I had to use
the external drive because the internal drive doesn't work.
The copies I made on the IIgs will not work in an old Mac single
sided drive. That's because an Apple 3.5 inch drive apparently can't
be forced into formatting just one side of a disk. I verified this by
formatting a disk with MS/DOS then formatting that disk with an old
version of the Mac O/S that allows you to specify a one-sided format.
After the Mac format, tracks 40 and higher could still be read by a
sector editor on an MS/DOS system.
Willi
Michael J. Mahon
Since a real 400K drive can't read the "other" side of a disk, it
does not matter whether that side is formatted or not.
What does matter is what is written to the side that it does read,
and that is entirely a matter of software. The appropriate IIgs
software could easily write 400K data on one side of a disk so
that it would be indistinguishable from a Mac 400K disk.
Apparently there has been little need for such software to be
written. ;-)
-michael
Check out amazing quality sound for 8-bit Apples on my
Home page: http://members.aol.com/MJMahon/
Supertimer
>Hi!
>
> To make a long story short, you can copy Mac disks with a IIgs and
>a couple of 3.5 inch Apple drives. HFS disks can be copied with any
>volume copy utility.
Congratulations. If you install GS/OS System 6.0 or
System 6.0.1 and the HFS FST, you can read, write,
and format HFS disks on the IIGS too.
In other words, not only can you COPY the volume,
you can read, write, copy, delete, create, save,
open FILES from an HFS volume on the IIGS.
You can also format hard drive volumes larger than
32MB using HFS on the IIGS.
HFS is one of the two fully supported file systems
on the IIGS. ISO9660 (a CD file system) and the
MS-DOS file system are read-only supported.
Bill Garber
"Supertimer" <super...@aol.com> wrote in message
news:20030906134339...@mb-m13.aol.com...
MS-DOS is fully read/write also with Peter Watson's
MSDOS Utilities or MUG! and a superdrive package.
I do it all the time, or should I say did, until I got the
servers running on the Mac and PC. Now I simply pull
the files straight from the servers with no more need for
first copying to disk and reading/writing them.
Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - will...@comcast.net
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Jeff Blakeney
<will...@comcast.net> wrote:
>"Supertimer" <super...@aol.com> wrote in message
>news:20030906134339...@mb-m13.aol.com...
>>
>> HFS is one of the two fully supported file systems
>> on the IIGS. ISO9660 (a CD file system) and the
>> MS-DOS file system are read-only supported.
>
>MS-DOS is fully read/write also with Peter Watson's
>MSDOS Utilities or MUG! and a superdrive package.
Well, not quite. What Supertimer was saying is that HFS is fully
supported in a way that is totally transparent to the user. I can run
IIgs applications and open files from IIgs applications off of either
ProDOS or HFS disks and practically the only way I could tell the
difference is if the filename contained more than 15 characters or had
characters that were illegal for ProDOS filenames. :-)
MUG! is to GS/OS on the IIgs as HFSLink and A2FX are to ProDOS on all
Apple IIs. They are utilities that let you transfer files back and
forth between disk formats but they are not extensions to the
operating system that give you transparent use of those disk formats
like GS/OS' ProDOS and HFS FSTs do.
--
Jeff Blakeney - Dean of the Apple II University in the
Apple II Community on Syndicomm.com
CUT the obvious from my address if you want to e-mail me