I recently bought a used 76GB HD from a friend. Upon getting it, I formatted it to have a 10GB partition and a a 66GB partition. I had backed up the HD that this drive was replacing, and copied it all to the 10GB partition (Mac OS 9 System Folder too).
Ever since then, whenever I verified the 10GB partition with Disk Utitlity I would get an error of 'Invalid Key Length' halfway through the test. It says that it can't fix it. Until recently, I merely ignored it and continued on. Tonight, though, when I was having a video conference I suddenly got a kernal panic, my first one, and had to restart. The bad thing is, once I restarted the 10GB partition was no longer mounted. I can't seem to manually mount it with Disk Utitlity either.
I think that it can't be the entire hard drive because the larger partition mounts fine, and I've being doing a lot on it lately.
Does anyone know if the 'Invalid Key Length' error is keeping the partition from mounting? If so, is there any hidden utility in Mac OS X that could repair it?