Following a week of trial and error (a lot of errors), I was finally able to install last night my first Hackintosh!
First attempt using Clover boot loader did not work and resulted mostly in kernel panic. Second attempt with Chameleon got me closer, but still I could not figure out what was wrong. The one thing that my gut feeling told me was that I may need to make sure I have maxed out my RAM with identical SO-DIMMs. When I started, the Elitebook had one 4GB and one 2GB SO-DIMM. When I tried swapping, there were further problems which could only be resolved by resetting the BIOS to default. After that, everything went mostly smoothly.
This is my current BIOS configuration:
IMG_3498.JPG 106.05KB 451 downloads
With the boot flags -x -v -f I was able to finally get the installation completed:
IMG_3516.JPG 50.85KB 334 downloads
Could create an account and log in:
IMG_3543.JPG 100.3KB 184 downloads
and these are the screenshots showing the OS X:
IMG_3548.JPG 125.95KB 223 downloads
and as what the Elitebook is known to the Apple world, as a MacBook Pro 6.2:
IMG_3549.JPG 116.54KB 250 downloads
I'll post more details in a follow-up.
Many special thanks go to all who have helped, but in particular to iFire, artur-pt, PJALM, joe75, Download-Fritz and Joseph. Apologies if I forgot any of the many from this forum who have actively helped me to get this far.
Attached is the Manual for the HP8440p with hardware specifications, which is useful to know what kind of kexts to install. HP8440p Manual.pdf 2.56MB 910 downloads