Re: [Xen-users] VT-x not found..

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

On 31/05/10 21:23, Bart Coninckx wrote:
> On Monday 31 May 2010 21:59:24 Jonathan Tripathy wrote:
>    
> > Jonathan Tripathy
> > I.T. Solutions Manager
> > ABPNI Computer Solutions Ltd.
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> > On 31/05/10 20:45, Bart Coninckx wrote:
> >      
> > > On Monday 31 May 2010 21:42:20 Jonathan Tripathy wrote:
> > >        
> > > > On 31/05/10 20:42, Bart Coninckx wrote:
> > > >          
> > > > > On Monday 31 May 2010 20:24:15 Jonathan Tripathy wrote:
> > > > >            
> > > > > > On 31/05/10 19:11, Rudi Ahlers wrote:
> > > > > >              
> > > > > > > On Mon, May 31, 2010 at 8:00 PM, Jonathan Tripathy<jonnyt@xxxxxxxxxxx
> > > > > > > <mailto:jonnyt@xxxxxxxxxxx>>    wrote:
> > > > > > >
> > > > > > >        Hi Everyone,
> > > > > > >
> > > > > > >        I upgraded my CentOS 5.5 to Xen 3.4.2 using this guide:
> > > > > > >
> > > > > > > http://www.syntaxtechnology.com/2010/01/upgrade-xen-3-0-on-centos-5-4
> > > > > > > -x 86 _64-to-xen-3-4-2/
> > > > > > >
> > > > > > >        Now, using the new kernel that it gave me, the system doesn't
> > > > > > > seem to be able to detect vt-x..
> > > > > > >
> > > > > > >        In virt-manager, Local Install Media and Network Boot are
> > > > > > > greyed out..
> > > > > > >
> > > > > > >        Any ideas?
> > > > > > >
> > > > > > >        Thanks
> > > > > > >
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> > > > > > >
> > > > > > >
> > > > > > > Doe your CPU acrtually support vt-x?
> > > > > > >
> > > > > > >
> > > > > > > Website: http://www.SoftDux.com
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> > > > > > >                
> > > > > > Yes it does. It worked fine with the orignal version of Xen that came
> > > > > > with CentOS 5.5. It's a brand new server opened today from Dell which
> > > > > > support Vt-x and Vt-d. Virtualisation technology is enabled in the
> > > > > > BIOS
> > > > > >              
> > > > > You have the vmx flag in /proc/cpuinfo?
> > > > > I suppose you had the VT extension enabled before the migration but
> > > > > suppose you fiddled with it, power down your host (like shutdown and
> > > > > pull the plug) and power it up again. I experienced this being
> > > > > necessary once because simple rebooting after getting out of the BIOS
> > > > > did NOT enable VT for real.
> > > > >
> > > > > B.
> > > > >            
> > > > Nope, I don't have that flag in cpuinfo, but I can't understand why....
> > > > Is it possible that the kernel upgrade can disable this somehow??
> > > >
> > > > It's really confusing me
> > > >          
> > > I personally think not. Do the power recycle thing and check again. If
> > > you're sure it's on in the BIOS. Ow yes, which reminds me, I once had a
> > > BIOS where it needed to be enabled on two different spots - I think it
> > > was a HP machine.
> > >        
> > Power cycling made no different. I had the plug out for about 2 or 3
> > minutes.
> >
> > This is really starting to worry me why the vmx flag isn't showing...
> >
> > I never checked for the vmx flag in the vanilla install, but since I was
> > able to create an HVM guest, I image it would have been there?
> >
> >      
> I can't imagine this is a result of the kernel being used. Whatever is in
> /proc/cpuinfo is what Linux reads out of the BIOS. Something is wrong there.
>    
Hmm I just threw in a Ubuntu live CD there and vmx is showing....
Something must be dud in that Xen 3.4.2 source that i downloaded...

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