Re: Virtualbox 64 bit guest option is missing
Am Mittwoch, 29. August 2012 schrieb Camaleón:
> On Tue, 28 Aug 2012 20:01:41 +0200, Martin Steigerwald wrote:
> > Am Sonntag, 26. August 2012 schrieb Camaleón:
> >> On Sun, 26 Aug 2012 18:47:34 +0200, Sven Hartge wrote:
> >> > Camaleón <noelamac@gmail.com> wrote:
> >> >> On Sun, 26 Aug 2012 18:26:19 +0200, Sven Hartge wrote:
> >> >>> Hmm. Could you post the output of
> >> >>>
> >> >>> grep flags /proc/cpuinfo
> >> >>>
> >> >>> so that we can see which capabilities the kernel thinks are
> >> >>> available on you CPU,
> >> >>
> >> >> That will be of little help because CPU will expose the VT-x
> >> >> capabilities despite the BIOS have them turned off.
> >> >
> >> > Oh?
> >> >
> >> > I must admit, I never owned a board/CPU combination, where the CPU
> >> > had virtualization features but the board lacked support for them.
> >> > So I assumed the capabilities list would reflect this.
> >>
> >> I experienced such situation: a BIOS revision that did not expose
> >> any VT- x options while the CPU supported them. A BIOS update
> >> solved it and a new menu for VT-x was added to the updated BIOS.
> >>
> >> But regardless this I think that "cpuinfo" is about CPU and not BIOS
> >> capabilities; from here you can't really know what to expect.
> >
> > May dmidecode be able to step in there?
> >
> > It shows the DMI / SMBIOS tables.
>
> I never have had a positive experience with dmidecode because it
> provides untrustworthy output :-/
In my experience it depends heavily on the BIOS. But for this ThinkPad
T520 the output appears to be pretty accurate for me. On the FTS Esprimo
workstation at work the output appears to be quite lacking of detail.
Whether everything is correct? Well…
But since it somehow seems to relate to the BIOS I thought it might help
here.
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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