Unable to boot Ubuntu 64-bit in Virtualbox on Mac OS X

Posted by Aamir on Super User See other posts from Super User or by Aamir
Published on 2011-02-13T11:39:18Z Indexed on 2012/09/16 9:41 UTC
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Filed under:

osx-snow-leopard

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virtualbox

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macbook-pro

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hardware-virtualization

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vt-x

I have latest generation Macbook Pro 7.1 (Intel Core 2 Duo) running Mac OS X 10.6.6. I installed Virtuabox 4.0.2 and tried to boot Ubuntu 10.10 64-bit iso. The boot options screen from the live CD came up:

enter image description here

However when I continued to load the live session, or installer for that matter, I encountered the following error:

enter image description here

This kernel requires an x86-64 CPU, but only detected an i686 CPU. 
Unable to boot - please use a kernel appropriate for your CPU.

I am not sure if VT-x is enabled or is supported in the Core 2 Duo of my Macbook Pro. But at least, I have both I/O APIC and VT-x enabled for hardware virtualization as told in the Virtualbox manual.

enter image description here

enter image description here

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