Michael, On Monday 20 April 2009, Michael Schwartzkopff wrote: > I have a intel machine (Linux) that tells me: > # uname -p > x86_64 > > So I did download the 64 bit verison > (http://download.virtualbox.org/virtualbox/2.2.0/VirtualBox-2.2.0-45846- > Linux_amd64.run) and installed it. No problem so far. > > When I want to install a 64bit guest from CD image VirtualBox keeps telling > me: "This is a 32 bit machine. You cannot install a 64 bit guest."
not VirtualBox is telling you this but the guest. For 64-bit support you have to enable VT-x/AMD-V. As of VirtualBox 2.2.0 this is done automatically for new VMs. And you should select a 64-bit VM type, for instance 'Linux / Ubuntu 64-Bit'. Note that 64-bit types are only available if your host supports VT-x/AMD-V. Iff this is true, then I assume that VT-x/AMD-V was not enabled properly for the VM for some reason. You should hover over the small circuit with a 'V' in it. The tooltip should show you if VT-x/AMD-V is enabled or not for that VM. Check the VM settings and check the VBox.log file. Search for 'HWACCM: ...' entries. Most probably the BIOS of your machine did not properly enable that hardware mode. Kind regards, Frank -- Dr.-Ing. Frank Mehnert Sun Microsystems http://www.sun.com/
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