Re: Help: Using an Apple IIGs Hard disk HFS partition for MAC SE30 BOOT disk?

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

Randy Shackelford <shack@onyx.southwind.net> wrote:

> David. E. Goble (goble@kigateway.eastend.com.au) wrote:
> 
> : Sorry for posting this Mac question, but I have a Mac SE30 8/40 and
> : wish to use a HFS partition on my Apple IIGs external hard disk.
> 
> : This partition was formated with system 6.0.1s Adv.Disk.Util.
> 
> You did it backwards. You want to format/partition with your Mac in order
> to get a driver into the APPLE_DRIVER partition on the disk. Then the SE/30
> will be hppy with it.
> 
> : I then, using appleTalk, copied a copy of system 7 on to the
> : partition. Then connected the hard disk up to the Mac SE30 and booted
> : up from the Mac SE30s internal system, but the external hard disk was
> : not recognised. Can anyone help?
> 
> I wouldn't expect this to work.

It should work if done while the hard drive is connected to the same
machine (the Mac Finder knows to copy the "blessedness" of the System
Folder, which requires updating the boot sector), but I'd be surprised
if it worked when copying over a network.

(I discovered that this worked entirely by accident - I backed up my
system folder onto a ZIP disk, then discovered I could boot from the
ZIP!)

It should be easy enough to fix this: drag the Finder out of the
non-blessed System Folder, then drag it back in again.  Finder should
note the presence of both Finder and System, and will mark the folder
with the blessed icon, indicating that it has done the required
low-level updates.


In any case, the primary problem (as others have mentioned) is the lack
of a Macintosh driver, preventing the drive from being seen at all.
This implies it is a third-party drive (not Apple badged), so ADU didn't
put the Apple-only driver onto it.

Using GenEx to create the GenericMacSCSI file _before_ partitioning the
drive on the IIgs should do the trick, but trying to add the driver now
without losing the disk contents is tricky.  I'd suggest backing up any
data you want to keep and starting again.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand