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I have Gateway NE56R laptop with Intel B960 processor, which do not support virtualization. But I want to install x64 bit guest OS on VirtualBox, it gives me error. I have also used VMware workstation, Parallels workstation. My host OS is Ubuntu 12.10 x64 bit.

Please tell me, which virtual software I can use in this situation.

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3 Answers 3

Virtual Box

When installed on a 64-bit host operating system there is no reason why Virtual Box should not be able to run a 64-bit guest operating system. This is different to running a 64-bit guest on a 32-bit host, which can only be done when the CPU supports virtualization.

On 64-bit hosts (which typically come with hardware virtualization support), 64-bit guest operating systems are always supported regardless of settings, so you can simply install a 64-bit operating system in the guest. Virtual Box Manual

Depending on the host OS you should enable I/O APIC, and on a Windows guest also use the Intel networking device.

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I think you undervalued the qualification (which typically come...) and hardware virt support is always needed. –  guntbert Feb 13 '13 at 8:33
    
I am successfully running Virtual Box on an old non-Vt-x Intel CPU - not to the best performance but it does run. –  Takkat Feb 13 '13 at 8:47
    
My objection was not about being able to run VB at all but to run 64-bit guests - but I cannot test it now. –  guntbert Feb 13 '13 at 8:50
    
Hi Takkat, as you mention here you are running Virtual Box on an old non-vt-x intel cpu, so can you tell me the process step by step. –  Tyagi Feb 25 '13 at 5:39

I did not test this, but qemu-system-x86_64, plain qemu without kvm does not use the processor's vt support. If it works, the performance might be a bit sluggish. Just boot some 64bit linux installation disk:

qemu-system-x86_64 -cdrom 64bitlinux.iso -boot d
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For the record, VirtualBox does not support 64-bit guests on non VT-x hardware:

VirtualBox's 64-bit guest support [...] require[s] hardware virtualization to be enabled. VirtualBox Manual

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