Thanks, would be nice to give the old girl a job again and would be full circle as started my HA journey many years ago on it but had to give up as everything new and exciting was specifically based around the Pi then and rarely worked properly if at all on the Mac.
i just tried my 2.0 ghz core 2 duo mini and it wont see the nuc drive. i think the efi boot at 32bit is the problem - the newer minies have 64 efi boot. but i think you could use an bootloader to overcome this. refind might work: https://www.rodsbooks.com/refind/
To be honest I’m perfectly happy with it running in a VM on my Microserver and don’t miss the old days of having to maintain it under the hood too, that’s why you’re initial discovery piqued my interest, would have been best of both worlds. Thanks again for trying it out.
I’ve just resurrected and repurposed my Mac Mini 2010 based on your post.
However, mine had 2 x HDD, and I knew one to be failing. I removed it, and still booted to Mac OS, but the fan just turned on full speed and stayed that way.
I suspect it may have been linked to the temperature sensor on the drive?
Anyway, did you have fan issues? What did you do to correct it?