When you have installed at least OSX 10.2 on your iBook, please take a look at the Freeware Tool Applejack. In most cases concerning startup-problems applejack can help, and you don't have to use your original system CD/DVD. Once installed, boot your iBook into single user mode, type in applejack and start the automatic repair.
Applejack troubleshooting utility
- Parent Category: FAQ