Can't boot Mac Lion

[dcassu]

Hi,

I've been trying to install Lion on my PC for about a month and I'm stuck at the same point .

My PC runs Windows 7 (partition 1) and iATKOS Snow Leopard (partition 2). Core-2Duo, IDE hard-disk and 2 Gb RAM.
I've tried to boot two things:

Mac Lion (the official one, not a iATKOS version) from:
- DVD: with rBoot, stuck with message "Unable to find driver for platform ACPI"
- USB: with Unibeast, it boots but I can't see any disk to select to install (no hard-disk).

iATKOS L2 from:
- DVD: can't boot and stuck at "Still waiting for root device"
- USB: made using Disk-Utility, it boots but I can't see any disk to select except the USB (not hard-disk).

As you see... I have tried several things and none of them work .
Why do you think that it doesn't recognize my hard-disk?
Do you have any idea? Do any of you have the same problem?

Thank you!!

[dddirtman]

if u get to the osx install screen u need to format that partition for osx to see it...