On Wed, Aug 22, 2012 at 08:21:50PM +0200, Artifex Maximus wrote: > Hello! > > Virtualbox on my Wheezy x86_64 is not showing 64 bit for guest and > guest x86_64 OS installer displays CPU mismatch error. My CPU is a > E5200 which does not have VT support. Virtualbox page says "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.". It is not clear for me that 64 bit host is enough or VT is > required for 64 bit guests. > > The question is I need to upgrade my CPU to any VT capable CPU or is > there any solution staying at the current CPU? If I change the CPU am > I need to reinstall Virtualbox?
When you specify the guest operating system type, do you have the option for 64-bit OSes? When creating a new Virtual machine, if you select, say, "Debian", you'll get a 32-bit virtual processor. What you need to do is select "Debian (64-bit)", if available, and then your guest can access the 64-bit capabilities.
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