I'm experiencing a similar problem with my server where if i have both
Virtualization and DEP enabled in the BIOS, i get a Hyper-V launch failed. On
closer inspection virtualization is disabled (even though enabled in the
bios), en DEP enabled. I can however start Hyper-V if i disable Hardware
Virtualization and enable DEP, but this negatively affects my performance.
Does anyone have any advice? I'm running a DELL Poweredge 2900 with server
2008 enterprise. The only thing installed on it is Hyper-V and File Services
role
Thanks,
Hanno
"Robert Comer" wrote:
Quote:
>
> You're quite welcome!
> Quote:
> >A sideways look at the problem!
>
> Sometimes that's best. <g>
>
> --
> Bob Comer <Microsoft MVP Windows - Virtual Machine>
>
>
>
> On Wed, 11 Jun 2008 14:11:01 -0700, Ian Crisp
> <IanCrisp@xxxxxx> wrote:
> Quote:
> >Thanks Robert
> >
> >A sideways look at the problem!
> >
> >I got RDP working to Hyper-V with sound and 24 bit color. cool
> >
> >thanks again
> >Ian
> >
> >"Robert Comer" wrote:
> > Quote:
> >> >My question is, how do I get Virtual PC 2007 SP1 64 bit to run on a
> >> >'Hardware DEP' enabled machine running Windows Server 2008 SP1 64 bit?
> >>
> >> The short answer is you can't if you're running Hyper-V too, the
> >> hypervisor has control of the CPU and via virtualization, wont let
> >> another higher level app even see that HW Virtualization is available.
> >>
> >> Your speed problems really can't be helped and it's actually kind of a
> >> miracle that VPC can run at all -- it just goes to show how hard the
> >> virtualization team at Microsoft worked to get VM's so compatible with
> >> real machines.
> >>
> >> To get sound and 32-bit color in a VM is actually not all that hard in
> >> Hyper-V anyway, just don' connect to the VM with Hyper-V's console,
> >> use the normal RDP client instead, and have the VM's OS set to be able
> >> to access the remote desktop. You can get odd screen resolutions that
> >> way too where the Hyper-V console doesn't allow things like wide
> >> screen. (1200x800 on my laptop) There's really no speed penalty for
> >> using normal RDP either...
> >>
> >> --
> >> Bob Comer
> >>
> >>
> >>
> >> On Wed, 11 Jun 2008 03:33:15 -0700, Ian Crisp
> >> <IanCrisp@xxxxxx> wrote:
> >>
> >> >I have a curious experience which i do not understand so thought I'd ask for
> >> >some assistance. Basically I get slow running guest OS in VPC 2007 SP1 64 bit
> >> >when running on Windows Server standard 2008 64 bit. The synopsis is as
> >> >follows:
> >> >
> >> >I have a fresh install of Windows 2008 standard SP1 64 bit as I was going to
> >> >test out Hyper-V. I enabled hardware DEP and Virtualization Technologies in
> >> >the BIOS and Hyper-V runs lovely and with fast guests OS's. Good with server
> >> >guests but no sound support and only 16bit colour.
> >> >
> >> >However, I have an XP Pro SP3 32 bit guest (that I've been using for
> >> >sometime in VPC 2007 on another host) that I want 32 bit colour and sound so
> >> >I thought I'd install Virtual PC 2007 SP1 64 bit and try it out on that, my
> >> >thinking was to use Hyper-V for server guests and VPC for client guests on
> >> >the same Win 2K8 host.
> >> >
> >> >I noticed that VPC runs the guest but it is painfully slow and it does not
> >> >recognise 'Hardware Virtualization' in the VPC Options dialog - it i greyed
> >> >out (but I have it turned on in the BIOS). After some experiments, I found
> >> >that if I leave Hardware Visualization enabled in the BIOS but disable
> >> >Hardware DEP in the BIOS, then the VPC recognises Hardware Virtualisation and
> >> >the guest runs really fast (faster than expected in fact 
). However,
> >> >without DEP, Hyper-V won't run.
> >> >
> >> >My question is, how do I get Virtual PC 2007 SP1 64 bit to run on a
> >> >'Hardware DEP' enabled machine running Windows Server 2008 SP1 64 bit?
> >> >
> >> >Note, I was running Vista Ultimate 32 bit on the same hardware before with
> >> >both Hardware DEP enabled and Hardware Virtualization enabled in the BIOS and
> >> >VPC 2007 SP1 worked brilliantly - suggesting that the hardware/BIOS is
> >> >working properly.
> >> >
> >> >Note 2, Virtual Machine additions is installed in the guest OS.
> >> >
> >> >Ideally I'd like to enable Hardware DEP and Hardware Visualization to run
> >> >both Hyper-V and VPC simultaneously.
> >> >
> >> >Thanks in advance
> >> >Ian
> >> >