8

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

Gareth
  • 19,080
Aamir
  • 295

1 Answers1

18

You should go back to your virtualbox "new machine wizard" (it's the thing that opens when you hit "new") then when selecting your OS Type, select "Ubuntu" and switch the Version to "Ubuntu (64 bit)". This makes sure it enables the 64bit processor extensions for your machine.

jelveh
  • 181