07.012 Can I create standard 3.5" IIgs diskettes on a Mac?
Description
This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
07.012 Can I create standard 3.5" IIgs diskettes on a Mac?
You are most likely to succeed with an older Mac. However, even older Macs
that have built in compatible 800k (DD) drives will often produce a IIGS
diskette that is not quite right-- such as a diskette that should boot gives
the "Unable to Load ProDOS" error message.
If you have an older Mac that should write standard IIgs disks properly
and it does not, clean your Mac drive and keep trying. For instance, you may
need to extract a diskcopy archive a few times for the disk to write properly.
Newer Macs are, generally, less likely to succeed. Some Macs, such as
iMacs with a floppy drive option, cannot format IIgs-compatible 800k diskettes.
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By: Simon Williams
There was a thread discussing the impossibility of creating bootable
ProDOS disks from a Mac with a 'force-feed' floppy drive. Seems it ain't
necessarily so.
Using Bernie ][ the Rescue on a G3 iMac with a cheap USB floppy, I first
create a Diskcopy 4.2 800KB image, which I copy to a 1.44 MB diskette with the
finder.
Then I transfer the disk image to a PowerPC 6100/66 which has the non-auto-
inject disk drive (running System 7.5)... copy the image to the HD. Format an
800KB ProDOS disk with the finder and then use DiskDup+ to copy the image to
the floppy...
So far it's worked perfectly. I've made both GS/OS 5 & 6 and ProDOS
startup disks this way... :) The one oddity is that GS-formatted disks take a
long time to write, whereas the ones formatted under MacOS seem to write much
quicker...
DiskDup+ is the key. I wondered myself why I hadn't tried Diskcopy... so I
tried it -- without success.
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