I've in my notebook HP Pavillion DV5-1070el a Serial ATA DVD-RW (Optiarc AD-7561S), that don't works and on boot form dvd i read the 'Still waiting for root device' message. I installed leopard retail by an external dvd usb. Another curious thing is the error in System Profiler on Serial ATA section, it don't recognizes SATA Controller.

But if i physically remove the sata dvd, this fix the error in system profile, and i can view all sata ports recognized!! Scoring analysis for mac. It's incredible. Any solution? This depends by dvd or controller?

Ich9m E M Sata Ahci Driver For Mac Pro

This is a problem only for leopard, win vista and ubuntu isn't affect. I've this problem with all distrubution of leo: retail, iDeneb, kalyway, iAtkos and iPC. The product id of my chipset is 0x29298086. Sorry for my bad english.Thanks. Its not really that important if the controller shows up as Unknown or ICH9, its mostly the same, though the legacy kext uses a slightly different driver its unknown what are the functional difference. I would advise you to try this: 1st: restore the original vanilla AppleAHCIport and IOAHCIFamily/IOAHCIBlockstorage kexts and remove corresponding legacy kexts if you have any, and see if you get the 2 ports recognized (as unknown) without the dvd plugged on. Then try with the dvd connected but check if you see it in Disk Utility, not only in system profiler.

2nd: install the legacy kext ( LegacyAppleAHCIPortIntelICHx.kext.zip) I proposed above (without dvd) and make sure it loads, i.e the ports should appear now as ICH9M/ICH9M-E AHCI in System Profiler instead of Unknown AHCI. Now try with the DVD connected and see if it appears in Disk Utility.

If it doesnt work I'm afraid that particular drve is the one to blame.