Success & Bungled password
I did Upgrade on my MacBook Pro, it worked great! Took 1 hour +/-. 🙂
On my iMac, I did Archive and Install because I wanted to get rid of any system and application "clingons" from when I did target mode to move my stuff over from a PM G4 (PowerPC processor).
I had one kind of MAJOR problem, after the initial log on, I wasn't able to download software because the system wouldn't recognize my password. So I rebooted to the install disk to reset my password. Which I did, yet when I rebooted from the hard drive, my account didn't show up in the list of users! I panicked. Then I calmly rebooted and rebooted and booted with the install disk and fixed permissions (which didn't find any to fix), checked the file structure, no problems found there either. 🙁
Got on the Apple support site via the MacBook Pro (sure is nice to have two computers). Alas, I found that likely many others had the same or similar problem and there is a fix for it. It has to do with your password being created at or before OS X 10.2.8. Apparently, Apple assumed everyone would be changing their password at sometime between then and now. Well, I didn't.
You have to boot into "Single user mode" which gets you to the unix command line. From there Apple outlines the necessary commands to delete the old and enter a new password.
Voila! That did the trick. I'm happy now. 😀