Wow, I just found this thread and am excited for the possibility!
I had looked into getting a Quadra or Centris 610 for playing around with A/UX and now finally got one. When I found out about the CPU upgrade I was intrigued and my searching led me to here. Is there still interest/progress in...
Hrm, according to https://whitefiles.org/tec/pgs/h10b.htm the 5V power is only on pin 9, which my Classic and SE/30 don't have, so it would mean pulling power from a different port like ADB, SCSI, or floppy.
Which Macs have 9 pin mini din?
I'm wondering if this could be adapted to a RPi0W, using the GPIO to interface with the Mac serial over AppleTalk, and NAT to the network using WiFi... Would the Mac serial port be able to provide the 5V power the RPi0W needs?
This would likely be the cheapest physical adaptation to get a...
So here is my second System 8 attempt to squeeze as much as possible and still compress down to 1.5M, complete with:
System 8.0 732K / Finder 8.0 294K
Control Panels
Memory 7.5.9 38K
MountImage 1.2b2 12K
SCSIProbe 4.3 26K
Extensions...
So here is a better System 8.1 attempt compressed down to 3.5M, complete with:
System 8.1 2347K / Finder 8.0 294K
Control Panels
LiteSwitch 1.0 75K
Memory 7.5.9 38K
SCSIProbe 4.3 26K
Extensions
Apple CD-ROM 5.4.2 93K
ISO 9660 File Access 5.2 20K
Text Encoding...
I have spent a great deal of time trying to slim down the 8.1 System file, by comparing it side-by-side to the System file from the 8 boot floppy, First, I removed any resource in the 8.1 System which wasn't in the 8 System, rebooting between each removed resource, to test that it was still...
I finally found the trick to getting an 8.1 System suitcase to recognize HFS+ is including the 'Text Encoding Converter' extension! But this is 592K and the 8.1 System suitcase is more than 6M... I'm still searching how to slim it down.
At least it will fit in a 12M disk image, so it should fit...
Hrm... so changing or removing that message might take some more free time than I have lately.
At least I've now verified that the image boots fine in a real SE/30 using BMOW's FloppyEmu in HD20 mode.
Does anyone know how to remove this startup message with resedit or equivalent? Everything still technically works, it's just an big annoyance to click or press Return on every boot.
OR!!!
Is is possible to take this text and modify it to provide the user with some instructions for recovery?
So here is my System 8 attempt compressed down to 1.5M, complete with:
System 8.0 732K / Finder 8.0 294K
Apple CD-ROM 5.4.2 93K
ISO 9660 File Access 5.2 20K
MountImage 1.2b2 12K
Apple HD SC Setup 7.5.1 87K
Disinfectant 3.7.1 347K
Disk Copy 4.2 24K
Disk First Aid 8.1 153K
System...
Using fc8, it does indeed shrink down to less than 1.5MB.
Ideally I'd like to use the same microchip drive icon that the Macintosh Classic uses for its CMD+OPT+X+O ROM booting.
My goal is to have the best 'recovery' boot in the ROM, which would allow fixing as many different situations as possible.
So far, with the base 2.25MB image before compression I have been able to fit:
System Folder 7.0.1
(patched) Apple HD SC Setup 7.5.1
Disinfectant 3.7.1
Disk Copy...
Bolle, I have 2 extra 16MB cards (already have a 16MB card inside my 520c) with empty connector pads on the back. Could I send these to you to convert to a 32MB and play with getting 64MB or 128MB recognized?
I would love to play around with a Macintosh SE/30 and max it out (including ROMinator II), but all I have with m68k is a Macintosh Classic and PowerBook 520c.
At least I've gotten the Control Strip to play well on 68000 (vMac Classic), but I think this will likely not surprise anyone.