Just tried x64 safe mode again, here some facts:

- Kext Utility repair permissions WORKS
- Rebuild Extensions.mkext FAILS
- Spotlight does not work (is that safe mode related?)
- In Terminal sudo -s WORKS wihout package or other error

I got another panic when trying to repair permissions with terminal. I also havent checked disk utility for the package error. Will check now as last test for today.

Update: Alright, repair permissions works within Disk Utility but got another panic before it finished. No more UUID, Packages or other errors though. This is tested in safe mode (because panics happen a lot faster in normal boot)

I'm out of ideas for 64bit though so for now back to my old trusty 10.5.8