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Don't expect that my efforts (should I even succeed!) will be portable across the whole range of 68030-based Macs. My primary target is the SE/30, so I will tailor things for this machine. Given its peculiarities, I don't expect my port to work on other Macs without changes.

I don't see why a GUI should not work. Perhaps even using parts of the Mac ROM, if they do not conflict with Minix's paradigm. Minix doesn't require an FPU, but an MMU is necessary for memory protection and virtualisation capabilities. Of the old OSes that used the capabilities of the 68030...

Well, let's say my interest is mostly academic, at least at this stage. The biggest hurdle will be to get a proper kernel running. From a practical point of view, Minix is interesting because it has a micro-kernel architecture, contrary to most UNIX versions out there which run on the Mac (and...

On paper, yes :) The MMU embedded in the 68030 is quite easy to program, as it has a lot less features than the 68851.

Thanks for the offer! I think I will tackle the SE/30 first, as it looks the simpler of the two machines. The plan is to try to put together the kernel and the memory manager (two of the components of Minix.) The "pure" 68k implementations of Minix aren't very good since they don't use any MMU...

Thanks for the information; I suspected hardware info I was looking for about Macs weren't really available at all. Good news about the Drivers and Cards book; if it only tells you how to add new hardware and interface it with MacOS then it's not really useful. I was just skimming the A/UX 2.0...

Hi all, I am a newbie to the forum, and (almost) newbie to Macintosh systems. I recently acquired a Macintosh SE/30 and a Macintosh Quadra 650, and I'd like to try my hand at software development. In particular, my idea was to port the old Minix OS to the Macintosh SE/30 (for starters) as a...