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OSX Lion: 64-bit Kernel and Extensions NO

8441 Views 16 Replies Latest reply: May 5, 2012 1:09 PM by X423424X RSS
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May 4, 2012 12:49 AM

I partitioned my hard drive into 2 partitions. 1 installed OSX Snow Leopard and the other OSX Lion.

However, I can't get the OSX Lion to 64-bit Kernel.


I tried to go to terminal and did the

sudo systemsetup -setkernelbootarchitecture x86_64


It says the changes to kernel have been saved. But, when I check on the About this Mac, it still says NO 64-Bit.


Any recommendation?

Mac Pro, Mac OS X (10.7.3), Mac Pro Dual-Core Intel Xeon 2.66
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