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Mountain Lion Installation on HP Probook 6450b Problem

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I am a new user on Installation Mac on intel based pc. I make a bootable USB with Mountain LION for Desktop and i successfuly install on a pc.

After that i try to install Mountain LIon on a Laptop of HP model 6450b. but i failed always. I have been trying this from last 15 days but i stuck in the same Position. I make the USB bootable from the help of smone in youtube.


Can you Please help me figure out where is the problem and If possible give me the solution.

My Laptop sepecification are bellow:


Model: Hp ProBook 6450b

Processor: Intel core i3 350M 2.27GHz

Socket: 989 rPGA (support SSE, SSE2, SSE3, SSSE3, SSSE4.1, SSE4.2,EM64T,VT-X)

L3: 3MB

Model: 146D


GPU: Intel HD Graphics 1GB



I try install few times but i stuck where laptop boot with the bootable USB but stuck when the apple wndow come and circle spainning. I attach the file when the boot start and where it stuck.


First picture when start with bootable usb and second pic where i stuck.





Attached Files




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essayes PCIRootUID=0 ou 1 GraphicsEnabler=No -f -v



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Hi gils83,

I try with that flagas but it now works.




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try this   boot


-v -s


and type this  five command one at the time 



fsck -fy


mount -uw /


mkdir /kext_backup


mv AppleIntelHD* AppleIntelSNB* AMDRadeon* ATI* GeForce* NVDA* AppleIntelFramebufferCapri.kext /kext_backup





and reboot   -v  :)

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