Date: Mon, 21 Dec 2009 12:50:46 -0600 From: Tim Daneliuk <tundra@tundraware.com> To: freebsd-virtualization@freebsd.org Subject: Re: FBSD 8.0 And VirtualBox 3.1 Message-ID: <4B2FC386.6030709@tundraware.com> In-Reply-To: <hgnje5$3fl$1@ger.gmane.org> References: <4B2BB633.8080302@tundraware.com> <71884493a925c9959242935b6db83e80.squirrel@pop2.pknet.net> <4B2C4D1C.8000707@tundraware.com> <b649e5e0912190301s711ce57kf2f6f70aa1945ccc@mail.gmail.com> <hgnje5$3fl$1@ger.gmane.org>
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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. -- ---------------------------------------------------------------------------- Tim Daneliuk tundra@tundraware.com PGP Key: http://www.tundraware.com/PGP/
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