Well since I know you are all very concerned, just following up to say that I answered my own question: booted into ROM (thanks, Rominator!) and ran Norton Utilities, which claimed to patch up a few things and then I was able to reboot into the correct system folder.
Now, a forum etiquette...
OK I hope I haven't screwed anything up too bad.
I have an SE/30 with a ROM-inator II, running 7.5.5 in 32-bit mode. The HD has been replaced with a SCSI2SD (partitioned into three drives, 7.1, 7.5.3 and 7.5.5 but I primarily use the 7.5.5 one). Last night I was trying to futz around with files...
Ahhh did not know that. So the slots are just for additional RAM. Cool! Thanks for the info.
I've been coveting a CC for a long time so couldn't pass this one up. But clearly I've got more to learn!
I tried cleaning it as best I could and figured I'd give it a shot starting the thing up...
I will try that, but I'm pretty sure there are connections that are completely corroded out.
Also I can't believe I just now realized there's no RAM in this board! :O I'm an idiot. Guess you get what you pay for!
Yeah, I wasn't planning on it, but at this point it would probably be just as much effort.
OK, so who wants to sell me a 575 board? ;)
(I know, I will start a thread in the Trading Post)
Took a $20 gamble on a local Color Classic-- owner didn't have keyboard and didn't know if it worked. Had a look at the motherboard and it appears there is significant corrosion near the PRAM battery (but I can't tell if it's from the battery itself or not? I guess the battery was replaced, and...