SATA or IDE ?

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Mac OS X 10.6.3 • 2.8 GHz Intel Core I7 860 • ASUS P7P55D • 2 GB 2 Ghz DDR3 • ATI RADEON XFX 4890 1GB • 2 x Hitachi 160 GB Serial-ATA • PIONEER DVD-RW DVR-112 • LaCie Desktop Harddrive 750 GB USB

Hey zeph i just want to say first thanks for taking the time to answer all the questions you can, greatly appreciate it.

it's a TSSTcorp CD/DVDW TS-L63M ATA DEVICE-So SATA right? The think it worked in your 10.5.1 cd

If we use mbr then the efi doesn't work correct?

The efi seems to work great when booting with the cd its just i can't get it to see the bootloader on the drive.

Has anyone managed to boot a guid install with the efi bootloader?

like I said, It did not detect my HD, DVD, and even pluged USB drive, it means there are nothing show up in disk utilities even the booting DVD in the DVD drive.
Again, I using hirren boot CD to delete all partitions, the drive totally blank, free space, un-located.
I can use 10.5.1 install to my USB drive. The problem is I want to install it into my internal HD so that OSx will be the primary OS that why I waitting for Rev2 (which you call now 10.5.2 Rev1). But it still did not detect the HD and it more worster than the old ver. (10.5.1) is show not thing in diskutilities (for my laptop).
Again my laptop chipset and southbridge is NForce 560, does a 10.5.2 support it? if it is, how does it not detect the HD? and how to fix it? Please!!!!!!!!!!!!!

A lot of people are experiencing the same error. Interestingly enough, it is not an error. I encountered the same thing, and this is what I did.

heres the deal, Make sure your partition is configured with MBR (Master Boot Record), and assure that the name of your Partition/HD Volume is one word only, i.e. Leopard, not Macintosh HD.

Lastly, make sure the Bootloader you install is MBR as well.

You should be on the road then. - WinLinMac01

WinLinMac01: Do you get my point????? the installer did not detect HD How do I partition it?????
Ok What I do now is restore win Vista back to Part 1 40G,(ofcourse the HD now is MBR), un-located (free space) 120G. Boot DVD still not detect HD and DVD

That's strange. What kind of HD is this, ATA right? Most likely I would suppose. Format the existing data and see if the drive is detectable in the BIOS, and lastly, assure that the ribbons are securely attached. That's the best I can tell since I've never encountered this in a Mac.

I tried installing 10.5.1 and I could get past everything but It wouldn't format my HD
so i waited for 10.5.2 because the nforce drivers were going to included in this one
I have all sata drives I don't have the option to use IDE now i get Still waiting for root device
anyway to solve this
The Inspiron 531 uses a motherboard manufactured by Gigabyte (arguably an ASUS board) for Dell. It uses a nVidia nForce 4 chipset with an on-board video card. It also has on-board sound (Realtek) and an on-board gigabit NIC. It has one PCIe x16, One PCIe x1, and two PCI card slots. It has four DIMM memory slots, and four SATA connectors. The 531 motherboard does not support PATA or IDE drives without the use of a third-party controller.
that is my computer ^^^^

I'm very appreciate all yr reply, but seem my problem does not solve I did wrote my hard ware spec. in the post #1, it is a laptop and of-course the HD is detectable by BIOS (windows is working normally) so no need to check the cable.
I post the error images for yr ref.

error image during verbose mode