Re: LocalTalk/AppleShare between IIgs and Mac LC 575 - how?

[dempson@actrix.gen.nz (David Empson)]

Gary Gouriluk <gvgouril@ilos.net> wrote:
> Rodney Hester wrote:
> > "David. E. Goble" <goble@gtech> wrote in message
> > 3b20d7b8.37931164@news.adelaide.on.net">news:3b20d7b8.37931164@news.adelaide.on.net...
> > > I am not sure on this. I have only mounted entire harddrive
> > > partitions. These show up on the IIgs desktop as harddrive icons (HFS
> > > partititions) or floppy drive icons (PRODOS partitions).
> >
> > How do you do this?  I've successfully mounted HFS folders on the IIgs at
> > this point, but I am unable to get the Mac (running System 7.5.5) to share a
> > ProDOS partition or folder at all.

> I believe you need to install the prodos filesystem extension onto the mac
> first. It was on Apple's site at one time.

System 7.5 has PC Exchange, which incorporates the ProDOS file system
extension.

In order to run the older extension, you would have to disable PC
Exchange, and might have to run an older system version as well.

I'd be surprised if the ProDOS file system extension would allow you to
share a ProDOS partition.

If the Mac was to share a ProDOS partition, its File Sharing extension
would need to be able to cope with the different naming restrictions of
a ProDOS partition.  The AppleShare protocol assumes that the host file
system is much more flexible than ProDOS.

It might be possible to share a FAT (MS-DOS) partition, because there
are tricks which Apple can pull to implement most of the features of an
HFS volume on a FAT volume.  The same does not apply in the case of a
ProDOS volume.  (Resource forks and Mac file type/creator information
can be stored by using extended files, but the name restrictions cannot
be bypassed.)  Sharing a read-only foreign file system such as an
ISO-9660 CD-ROM should also be possible.

I expect that the File Sharing extension checks for known file systems
or those with acceptable characteristics before letting you share them.

An earlier version of this extension might have been more flexible, in
which case I'd expect strange errors to occur if you tried to use an
illegal filename on a shared ProDOS volume.