On Wed, 22 Aug 2012 20:21:50 +0200, Artifex Maximus wrote: > 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.".
The three listed conditions have to be met :-( > It is not clear for me that 64 bit host is enough or VT is required for > 64 bit guests. I regret to say that yes: for 64-bits guests VirtualBox requires VT-x, it is more detailed here¹: "(...) Even though VirtualBox does not always require hardware virtualization, enabling it is required in the following scenarios: (...) - VirtualBox's 64-bit guest support (added with version 2.0) and multiprocessing (SMP, added with version 3.0) both require hardware virtualization to be enabled. (This is not much of a limitation since the vast majority of today's 64-bit and multicore CPUs ship with hardware virtualization anyway; the exceptions to this rule are e.g. older Intel Celeron and AMD Opteron CPUs.)" > The question is I need to upgrade my CPU to any VT capable CPU or is > there any solution staying at the current CPU? Well, you can stil install a 32-bits guest OS but for 64-bits you need a VT-x enabled micro, yes. > If I change the CPU am I need to reinstall Virtualbox? I don't think so. ¹https://www.virtualbox.org/manual/ch10.html#hwvirt Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/k180t9$k87$4...@ger.gmane.org