Re: (bootable) ProDOS floppies from Power Mac

["Paul Grammens" <grammens@svn.net>]

"Simon Williams" <*email*@*luddite.ca*> wrote in message
2161326.UNBLMUSA@news.telusplanet.net">news:2161326.UNBLMUSA@news.telusplanet.net...
>
>
> On Sun, 16 Feb 2003 10:45:07 -0800 "Paul Grammens" <grammens@svn.net>
wrote:
>
> >
> >
> > "Simon Williams" <*email*@*luddite.ca*> wrote in message
> > 216435.ORKFGANX@news.telusplanet.net">news:216435.ORKFGANX@news.telusplanet.net...
> > > Hello nay-sayers.
> > >
> > > I recall some time past, 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. Anyway, for what it's worth,
> > > here's what I've managed to pull-off:
> > >
> >
> > Are you able to boot a IIgs with the disk you create?  You don't
> > specifically mention that.
>
> Yes. I've made both GS/OS 5 & 6 and ProDOS startup disks this way... :)
>

Interesting. Any idea why it works for you, but not for anyone else?  :-)

Quoting from your first message:

"Using Bernie ][ the Rescue on a G3 iMac with a cheap USB floppy, I first
create a Disc Copy 4.2 800KB image, which I copy to a 1.44 MB diskette
with the finder."

This first part doesn't seem like it has anything to do with the fundamental
problem, which is writing a proper 800K ProDos disk with the incompatible
floppy drive and controller in a PPC.

"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."

Neither does that part.

"Format an 800KB ProDOS disk with the finder and then use DiskDup+ to
copy the image to the floppy..."

Formatting an 800K ProDos disk with a PPC 6100/66 should yield a disk that
is not readable by a IIgs or IIc+.  So that part doesn't matter.  I'm not
familiar with DiskDup+.  Perhaps that's the secret. Why aren't you using
DiskCopy? If you do, does the process still work?

"So far it's worked perfectly. 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... "

Are you using a standard 800K drive and the built-in controller on the IIgs
to read these disks? I can believe that the special controller card and a
1.44 SuperDrive mechanism can read these disks, but I find it hard to
believe that a 6100/66 can write an 800K floppy that a standard IIgs can
read.
-Paul