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Pre-install problem Yosemite

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I boot into chameleon and then use boot flags /amdfx npci=0x2000 USBBusFix=Yes EHCIacquire=Yes UHCIreset=Yes USBLegasyoff=Yes -v to boot into Yosemite-zone.The system boots into yosemite-zone and starts but stops in a line where it says "bpfAttach len 64 dlt 12" for a long time and does nothing.Never enters the OSX Installation screen.

My specs are:

AMD FX 8350


16Gb Kingston 1333Mhz

Sapphire 5770

How can i solve this problem?

Thanks in advance.

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/amd npci=0x2000 USBBusFix=Yes -v

Probably this is enough keep pressing enter key

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Hi again

Thanks for the reply.I tried the boot flags you said and pressing enter key and I managed to get into OS X Installation screen.

I choose the language for installation but the button for go on is inactive.I can't go on through installation proccess.


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