Re: ProDOS partition on MAC SCSI

[supertimer@aol.com (Supertimer)]

Dennis Fenton <defenton@MBnet.MB.CA> wrote:

>How does one make a Macintosh recognize a ProDOS partitition on a an
>external SCSI hard drive?
> 
>I have a 300 Mb external SCSI hard drive partitioned with a 32 Mb ProDOS
>partitition and the rest as an HFS Mac partition. The drive itself was not
>originally Mac but is installed in the case of an old "zero footprint"
>drive. SCSI is SCSI isn't it? I ins
>talled GS/OS 6.0.1 on the ProDOS partition by connecting the drive to my
>IIGS which has a RamFast SCSI card. I installed Mac/OS 7.0 on the HFS
>portion by connecting the drive to a Mac Plus. My ultimate goal is to use
>the drive as a server from which a string of IIGS Rom 03's will boot.

I do not think this is possible with a ProDOS partition.  To function
on this way requires the Mac Plus to be set up as an AppleShare
server, not just MacOS System 7 file sharing.  Also, you would not
be using ProDOS.  You would be using AppleShare.

Remember, everything the IIGS does with regard to drives and
file systems involves FSTs.  You want to use the ProDOS FST
to somehow access a ProDOS partition over an AppleTalk network.
This is not possible.  The ProDOS FST is for direct connect
volumes already.  GS/OS provides the AppleShare FST for reading
AppleShare based volumes.  To the Mac, the drives you set up
for AppleShare are just standard HFS volumes.
 
>The Plus boots from the drive but does not recognize the ProDOS partition,
>nor does it recognize ProDOS 3.5" floppies. When I connect the drive to
>other Macs some recognize the ProDOS partition and floppies while others
>don't. I can't find anything through their Control Panels or anything else to
>tell me why some do and some don't. I hope someone knows the answer to
>this quandary.

Assuming you can mount the ProDOS partitions, you still will not
be able to boot over a network from them.  You must do this
via AppleShare and the AppleShare FST.  But if you were doing
that, you should not need to mess with ProDOS at all.

I think the person best suited to answer this question is our resident
Mac to IIGS connectivity expert, Randy Shackelford.  I hope he
can answer your question for you in a more detailed way.  Good
luck!