Date: Thu, 31 Dec 2009 01:56:49 +0000 From: Jase Thew <bazerka@beardz.net> To: freebsd-virtualization@freebsd.org Subject: Re: FBSD 8.0 And VirtualBox 3.1 Message-ID: <4B3C04E1.7060701@beardz.net> In-Reply-To: <4B2FC386.6030709@tundraware.com> References: <4B2BB633.8080302@tundraware.com> <71884493a925c9959242935b6db83e80.squirrel@pop2.pknet.net> <4B2C4D1C.8000707@tundraware.com> <b649e5e0912190301s711ce57kf2f6f70aa1945ccc@mail.gmail.com> <hgnje5$3fl$1@ger.gmane.org> <4B2FC386.6030709@tundraware.com>
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On 21/12/2009 18:50, Tim Daneliuk wrote: > On 12/21/2009 4:42 AM, Ivan Voras wrote: > >> Marius Nünnerich wrote: >> >>> On Sat, Dec 19, 2009 at 04:48, Tim Daneliuk<tundra@tundraware.com> >>> wrote: >>> >>>> On 12/18/2009 8:16 PM, Peter wrote: >>>> >>>>>> I have a machine running Win/XP Pro SP3 hosting VirtualBox 3.1. >>>>>> >>>>>> The hardware happily boots the Ubuntu amd64 CDROM natively and >>>>>> FreeBSD 8.0 >>>>>> also boots fine - well ... up to the point where it has to ID the hard >>>>>> drive, but that's another story. >>>>>> >>>>>> IOW, the hardware is 64-bit capable (It is an Intel mobo w/a Pentium-D >>>>>> 940 w/EMT64 option). >>>>>> >>>>>> HOWEVER, when I run VirtualBox and try to install the 64 bit version >>>>>> of FreeBSD in a VM, it get a "CPU doesn't support long mode" error >>>>>> during the FreeBSD virtual booting process. FreeBSD 8.0 i386 works >>>>>> fine. >>>>>> >>>>>> 'Anyone run across this before and/or have a fix? >>>>>> >>>>>> TIA, >>>>>> >>>>> Do you have VT-x/AMD-v enabled? [in the BIOS and VBox for this VM] >>>>> >>>> Yup, but I wonder ... I'm running XP as the host which is 32-bit even >>>> though >>>> the hardware is 64-bit capabale. Could this be limiting what VirtualBox >>>> can deliver? >>>> >>> Exactly. For 64bit guests the host has to be 64bit too afaik. >>> >> No, if hardware extensions are enabled then PAE is the only requirement >> for 32-bit hosts to run 64-bit guests. >> >> According to Wikipedia >> (http://en.wikipedia.org/wiki/List_of_Intel_Pentium_D_microprocessors) >> some models of Pentium D have VT extensions and some don't. But then >> there's also the question of motherboard support. >> > Very strange. I have tried this on two different motherboards and > neither works: > > 1) Win XP running on an Intel 945 mobo with a Pent D 940 which supposedly > has VT support. > > 2) Ubuntu Karmic 64bit on a MSI P4M890 with a Pentium D 925 which may not > have VT support. > > Is the claim here that you cannot virtualize 64bit w/o VT support? Certainly > you seem not to need it for 32 bit guests. > 64bit guests require VT support : http://www.virtualbox.org/manual/UserManual.html#intro-64bitguests hth, Jase.
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