Re: SCSI hard-drive partition questions

[Dennis Jenkins <dennis@usb.com>]

My IIgs hangs at boot time when I attach my 44M syquest drive to my SCSI
chain.  The drive works fine on my mac.

John King wrote:
> 
> On ebay I bought some old SyQuest drives ($10-15 each) and disks ($5ish
> each). Attach one to Mac one to IIgs.
> 
> I can exchange disks and data between them -- I think both ProDos and HFS.
> 
> For a while, until I hooked up a scanner (something is wrong I know), I
> could even take a disk PC_formatted_SyQuest and directly copy PC to Prodos
> in the Mac (old Classic II).
> 
> "Dennis Jenkins" <dennis@usb.com> wrote in message
> 3A8AC412.353AE7AB@usb.com">news:3A8AC412.353AE7AB@usb.com...
> > Hello all,
> > I'm having difficulty getting my hard-drive on my IIgs to be recognized
> > when I remove it from the IIgs and attach it to my Mac LC-II.  For
> > anyone to help me, I should start at the beginning:
> >
> > 0) I won an ebay auction for an Apple SCSI card.
> > 1) I took a 40M Original Apple HD out of a spare mac and placed it in a
> > SCSI enclosure.
> > 2) I used Mac software (Apple HD SC Setup) to partition the drive:  32M
> > prodos and 8M HFS.
> >   The Mac recognized everything just fine.  I was able to copy lots of
> > files into my ProDOS
> >   partition using the Mac's Finder.
> > 3) My SCSI card arrived, I plugged it into my IIgs.
> > 4) I attached the 40M HD to my IIgs.
> > 5) The computer failed to boot from the HD, so I booted prodos from a
> > 800K floppy.
> > 6) ProDOS did not recognize the partitions.  Ug.
> > 7) I used 'filer' for format the drive.
> > 8) I copied my files back to the drive, one at a time, using 'filer'.
> > (that sucks)
> > 9) I can boot from my HD.  Yippie!
> > 10) 2 weeks later I decide that filer sucks, and since GS/OS doesn't
> > like my SCSI rom,
> >   I can't run GS/OS's finder.  So I attach the drive to my Mac.
> > 11) The mac won't recognize it.
> >
> > I suspect that 'filer' formatted the first 32M of the device as a raw
> > prodos device.  Ie,
> > no partition table, no SCSI v4.3 driver partition, just 65534 blocks of
> > prodos followed
> > by 16386 blocks of junk.  (yes, I'm 2 blocks short of a full 32M.  I
> > have no idea why filer did that.)
> >
> > I have never run the official apple II SCSI utilities on the device
> > (but I did download them.  I will play with them soon).
> >
> > I want to be able to attach the HD to the IIgs or the Mac LC-II and
> > have both computers recognize both the ProDOS and HFS partitions.  (I
> > realize that until I get my ROM upgraded, I can't run GS/OS, hence no
> > IIgs access to HFS).  However, the Mac wants a partition table and the
> > IIgs SCSI card (rom ver B) appears to hate partition tables (I will
> > check the device later to see if it really does have a partition table).
> >
> > I don't mind reformatting the whole thing, but I will need to back it
> > up first.  I can probably attach it to my Linux box and use 'dd' to copy
> > off the sectors that form the ProDOS partition.  I can then repartition
> > the device so that the ProDOS partition has exactly 65534 blocks, and
> > then DD the prodos filesystem back to the HD.)  If that doesn't work,
> > I'll ShrinkIt everything that I currently have (about 3M of stuff) to
> > 800K floppies.
> >
> > Any ideas, thoughts, suggestions, etc... ?
> >
> > --
> > dennis@usb.com                           Universal Savings Bank.
> >
> > The three most dangerous things are a programmer with a soldering
> > iron, a manager who codes, and a user who gets ideas.

-- 
dennis@usb.com                           Universal Savings Bank.

The three most dangerous things are a programmer with a soldering
iron, a manager who codes, and a user who gets ideas.