In place upgrade question

success!
I spent all day trying to swap out the problem drive in two other systems, a
P2 350, and P2 450, trying to get it to come up as a slave or boot them. No
dice. Tried silly jumper settings, no dice. The other systems didn't see
the drive. I have no idea why. The 350 is running 98, the 450 XP. My
kitchen table looks like a tornado came through and stirred up all my
computer parts. So, sadly, admitting defeat, I put the systems all back
together again.
I figured I'd try it one last time, and don't you know it? There was the
repair hit R option!
I'm gonna go have a beer.

Thanks again, guys, for taking the time to let me know what you thought
about my problem

Aart