Hey guys, you do have the option to boot in AHCI mode. Go in the BIOS and go to the second tab then go to setting configurations... ( this is from the top of my head) then highlight the second option it is for the SATA configuration you can choose from AHCI, IDE, and RAID. AHCI mode only works to get past the "still waiting for root device" however PATA hdd's aren't showing up at install, which I need it to because I want to install OSX86 on my PATA hdd. We are getting this close to work guys.