Oops. I wasn’t paying attention to the updates in the Mac Update manager. One of them was for 10.5.3. I’m thinking: whatever, just update the OS, so I clicked to do the update. Except now with the Hac, I do have to pay attention. Because these OS updates don’t work as normal. All the updates are fine except for these “point” updates to the OS (“.3” to the “10.5”). Even with my supposed “vanilla” kernel, it didn’t work. The result was a crash during update and a dead OS that wouldn’t boot, apparently the result of an unknown CPU – i.e., not a Mac provided CPU.
So, I did the install over again. I used the dual boot to get into Vista, backup the files in my User directory, then move them back to the MacOS drive after reinstall. (MacDrive was really useful for this.) Then I reinstalled the software that I had installed so far. I ended up killing a few hours putting things back together. It’s an oops I won’t repeat.
As for the OS update, it isn’t something I really need which is even more reason to be annoyed at myself for not paying attention. At some point, I’ll try the 10.5.3 upgrade again. But that will be after I’ve got a good backup (hello, Time Machine) and after the experts at InsanelyMac have the upgrade figured out.