This is a little bit clearer instructions for this build than the TC's. Most of his stuff is right just not real clear. You might not encounter any of the problems I did but if you do I hope they clear them up. And remember Google is your friend, if you encounter something else I'm sure someone else has and found how to fix it.
I had my DVD burned hooked up into SATA port 1 (Top right grey). My hard drive was plugged into the top 6GB port. The drive is only a 3GB but it worked and I used the regular black cable and not the white 6GB ones.
The bios settings were as follows: I had version 0704.
Main--storage config--configure sata as-ACHI
Power--Suspend--S3 / Both ACPI options enabled.
I don't know if it matters but all onboard devices were disabled as was speed step-c state and A20m were also disabled under the advanced cpu config
Software i used was a factory copy of 10.6 SL iBoot 3.0 and the newest multibeast
To boot with iboot the only option I could use was -x PCIROOTUID=1 GraphicsEnabler=NO -v
Anything else would not boot for my setup and videocard. That alone was a huge problem for me to figure out. If you have a nVidia card try that if you cant get to the install screen.
Now here are the problems i encountered and how I solved it:
During the the first couple times trying I encountered the line "Still waiting for root device". After tinkering with the sata cables a bit I never had that problem again.
The -v bootup would hand on the following line ACPI_SMC_Platformplugin ::start - waitForService(resourceMatching(AppleIntelCpuPowerManagement) timed out. This was a video card issue which lead me to find out that the only way it would get to the install screen was -x PCIROOTUID=1 GraphicsEnabler=NO -v If you have a nvidia series 4xx or 5xx I would recommend that if you still cant boot.
The last problem I encountered was I got all the way to the install progress bar but it froze at the very beginning and would not move. Checking the error log from the task bar showed ERROR: Error writing cache to /Volumes/SystemX/Library/Caches/com.apple.FindSystemFiles.plist
ERROR: Failed to enumerate /Volumes/SystemX/Library/Caches, cannot prune ()
I fixed this by reactivating the 6GB port in the bios and plugging the HD to that. All of a sudden it worked like it should.
Post installation: Everything works for me sound, ethernet, USB, shut down/reboot. You dont need any other kexts. All the ones in the newest Multibeast work with it. Just follow the iBoot instructions to get the install and updates working.
*Note After reinstalling my other stick of ram bringing the total to 6 GBs, OSX failed to boot. This was fixed by selecting boot options typing the flag -x (safe mode), and running Multibeast selecting the options to rebuild caches and repairing permissions. After the reboot OSX was business as normal
