Re: SyQuest and HFS FST

[David.Empson@bbs.actrix.gen.nz]

In article <9211180616.AA16897@chasm.scar.utoronto.ca> 90taobri@CHASM.SCAR.UTORONTO.CA (Brian Tao) writes:
> 
>     Since Syquests have a SCSI partition map, I assume the problem is
> the same one preventing an HFS hard disk formatted on a GS from working
> on a Mac.  You need some sort of special partition with Mac-specific
> data for it to be recognized.  The GS doesn't need it (and doesn't put
> it on).

If a SCSI drive is formatted on a IIgs and is not partitioned, the
drive will be unusable on the Mac.  If it has been partitioned, the
Macintosh still can't access it unless there is a Macintosh SCSI Driver
for the drive, in its own partition.

Advanced Disk Utility installs the driver in the case of Apple-branded
drives, but not for non-Apple drives, unless you make a copy of ADU in
your */System/Drivers directory and rename it to GenericMacSCSI.

However, even this won't work, because the driver supplied with ADU
doesn't know about removable drives, so the Mac will get confused if
the SyQuest is ejected.

>The reverse may also be a problem:  the Mac partition confuses GS/OS somehow.

Definitely not.  The IIgs and Mac use the same partitioning mechanism.

Formatting the drive on the Mac _should_ allow it to be read by both
computers.  There must be some other problem.
-- 
David Empson

Internet: David.Empson@bbs.actrix.gen.nz    EMPSON_D@kosmos.wcc.govt.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand