Error symbol on boot of usb

[iampaulb]

Hi Guys

I have built my hackintosh tonight, and now trying to install ML on in the little devil. its a Gigabyte H77n MB / with a i3 ivy bridge cpu and crosair ram. AHCI is set in bios and optimized settings also. the usb boots fine but then i get promtped with this screen ---- any ideas?

PS: i didnt choose (14. If using a Socket 1156 system without Rate Matching Hub (RMH) USB choose Legacy USB Support) - because my MB is a LGA1155 socket! is this where i went wrong??

 

[Middleman]

Iampaulb,

Try booting in at the Chameleon boot prompt with -v -x BuiltInEthernet=Yes PCIRootUID=0 and see how far it gets you.
Report back with any issues.

 

[iampaulb]

Ok thank you for that.
Is that under the USB menu? (step 3. of the unibeast guide for m.lion)

Ill give it a go tonight, wish i wasnt at work now