I started up my iBook just before, and it's booting up on OS 9.2 and doesn't seem to be booting up in OS X. Can't figure it out. Is there a way to select which OS to boot up with in the start up?
I had a similar problem with not being able to get into OSX, (or OS9 for that matter - my PBook refused to boot!!) Although I could bring up the disk selector using the option key, it wouldn't find the OSX disk.
Eventually, I found out that you can change the startup disk from the OSX install CD/DVD. If you boot into that (hold down C?), then go to the Installer menu, you can change the startup disk from there.