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Need help getting IIgs working



Lately I've been trying to get a IIgs system working.  The main problem 
I've been having seems to be getting a working boot disk.

First, a few months ago I found an old ROM 00 machine, hooked up a 3.5" 
drive, made a  IIgs System 6.0 boot disk from off on an old (March 1993) 
Developer CD using my Mac, and tried firing it up.  "UNABLE TO LOAD 
PRODOS".  I also tried adding RAM chips to fill up the RAM board, and that 
didn't help either.

Today I found a ROM 01 machine, and some more drives that obviously were 
donated to the thrift store along with the IIgs.  (The keyboard and mouse 
I could always use anyhow, so I got them, and the monitor I already had 
one of.  So I left the monitor and Imagewriter II behind.)  The 3.5" drive 
had a "DRIVE 1" sticker on it, so it must have been used as drive 1, 
right?  :)

I hooked it up, made a System 6.0 boot disk, and "UNABLE TO LOAD PRODOS".  
It had an extra floppy controller card, and I got the same result (only 
with a little more startup delay to scan for the drive) when the drive was 
plugged into one of the extra floppy ports.

So I have a few questions:

* I've been told that I can boot System 6.0 on a ROM 01 machine with 1M of 
RAM.  Is this true?

* How do the jumpers on the 1M memory card work?  The machine I found 
today had a second bank populated, and J2 jumpered.  The first machine was 
empty and had no jumpers.  Am I right to guess that this refers to memory 
size and that both jumpers in place = a full board?

* Is it even possible to start this thing up from a 3.5" drive?  (Or else 
why would they put 3.5" images on the Developer CD in the first place?)  I 
even tried an 8-bit PRODOS 3.2 system disk, but again, "UNABLE TO LOAD 
PRODOS".


I guess at this point the only thing to do is go through my collection of 
Apple II disks and see what I can get to work on the 5 1/4" side.  But I 
seriously doubt I have any 5 1/4" IIgs system disks.  Games, maybe, but 
that's it.