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Black Screen after Darwin x86_64 usb install

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Hi i am following this guide: http://Olarila.com/forum/viewtopic.php?f=27&t=1627

CPU: I5 2500K

GPU: AMD 6850



i followed the guide and wrote the image to my usb stick

i tried booting and i got a black screen/reboot after these two lines:

"Starting Darwin x86_64"

"Boot Args: boot-uuid= 6314..."

I then deleted the video kexts with transmac and also deleted this: "/System/Library/Caches/com.apple.kext.caches/Startup/Extensions.mkext"

Still got black screen at the same position as last time, even with these boot options:







... etc

I have also tried looking for HPET and NX Bit in my bios, but i cannot find it to enable it.

is there anything else i can try? thank you

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u video card is only amd 6850 ?

if so must remove the ati6000controller

if also use intel hd 3000 must remove the appleintelhd*.kext

and boot

-f -v GraphicsEnabler=No

and post image where it stop

good hack

PB Easy Note TM 86 - i5 430 M - H55M - Ram - 6 GB - Alc272 - Radeon HD 5470 512 QE/CI

Lenovo G500 - i5 3230m - HM77 - Ram - 8 GB - Conexant audio - HD 4000

My OS X Files 

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thanks for the reply, i have deleted the following kexts: ATI* AppleIntelHD* AppleIntelSNB* NVDA*

my system uses the ati 6850, the onboard intel graphics are NOT used. (i did try booting the usb without the 6850 which didnt work)

i booted with "-f -v GraphicsEnabler=No" like you said and this is the final screen before black screen and system restarts:


anything else i can try? thanks for the help so far :)

*good hack* :P

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is something wrong there in the image

make a new image to pen

only delete the ati6000controller.kext


-f -v GraphicsEnabler=No

good hack


hi i followed your instructions and i still get a reboot before the installer runs:

here is the last screen before the reboot happens:


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