Weird. Do you have a Disk Tools disk for it? You can boot off a floppy and
circumvent that, it sounds like a weird INIT or Extension. What version of
MacOS does it look like?
I'm a Mac ignoramus. I owned a broken 512k briefly, but was never able to
fix it. Unfortunately, I can't answer these questions. Without a keyboard, I
can't navigate enough, and didn't see any info regarding version when it was
booting.
SE/30s use regular old ADB mice and keyboards. Every swap meet has nine
billion of them, but CompUSA still sells new ADB mice and keyboards if you
don't mind the highway robbery. Look for the small circular plug with four
pins and one big plastic prong. DON'T BUY THE USB ONES. ;-)
I looked briefly on e-bay, and found I could buy a full SE/30 with keyboard
and mouse for $20 + S&H, so I'm going to hope I don't have to spend (any or
a lot) of money.
I don't know about OpenBSD, but NetBSD is definitely supported on
that model.
OpenBSD supports the SE/30. That's one of the first things I checked :)
Anything that NetBSD supported, when OpenBSD broke off, is still supported.
Beware, since the SE/30 has 24-bit "dirty"
ROMs. My advice is to
land a copy
of System 7.1 (or 7.5.3; Apple has that free for download although it will
be a slower boot than 7.1 on that system), wipe the machine,
install Mode32
if 7.5.3 doesn't include it already, and then install NetBSD.
(NetBSD requires
MacOS to boot.)
I looked briefly for System 7.5.3, but didn't find it. Admittedly I didn't
search long, but when I get a kb/mouse, I'll worry about that.