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I am trying to install CentOS 5.6 in My VirtualBox but I got this error on boot screen.

Your CPU Does not support long mode : use a 32 bit Distribution

My CPU is 64 bit I checked that using uname -a command and the output is

Linux localhost.localdomain #1 SMP Mon Jun 4 20:33:44 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

As per my knowledge I need to enable 32 bit support to my VirtualBox but I don't know from where I can enable that.

If you have any idea regarding this then please suggest me.

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up vote 1 down vote accepted

You're running a 64bit centos in your VM, but you only get one cpu introduced, try increase the CPUs to at least 2,

enter image description here

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Thanks, in my VM it seems disable i am unable to increase the CPU. it says you need hardware Virtualization support – juned Nov 3 '12 at 6:40
@juned output of cat /proc/cpuinfo ? – warl0ck Nov 3 '12 at 7:07
Can you enable hardware virtualization in your bios? – jmort253 Nov 3 '12 at 7:07
@jmort253 i didn't enable hardware virtualization in my system – juned Nov 3 '12 at 7:10
@warl0ck here is my output of cat /proc/cpuinfo procinfo.txt – juned Nov 3 '12 at 7:12

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