When it doesn't load the installation disk, I get the following error

USBF: 0.455 AppleUSBEHCI[0x600a800]: unable to get filterInterruptedEventSource
USBF: 0.456 AppleUSBEHCI[0x600a800]: UIMInitialize - Error Occurred (0x******) (can't make the rest of the code out from photo)
USBF: 0.460 AppleUSBEHCI[0x600a800]: start unable to initialize UIN
mblnlt: done (64 MB memory set for mbuf pool)

Then the disk stops reading.

I just tried to boot the setup again, but just using -v -f cpus=2, I left out the bus ratio.

It got stuck on
Bug: launchctl.c:2325 (23930):39: (dbfd = open(g_job_overrides_db_path, 0_RDONLY | 0_EXLOCK | 0_CREAT, S_IRUSR | S_IWUSR)) != -1

2 minutes later it shows under it
systemShutdown false

This stays for a good 5-6 minutes while the CD is buzzing away, like the laptop is trying to find something. Afterwards, it loaded, but the touchpad wasn't moving. Brilliant.

Eitherway, if installation loads, and the touchpad works, the above bug and systemshutdown messages are shown regardless.