Red Hat Bugzilla – Bug 233644
does not allow creation of qemu/kvm guests
Last modified: 2007-11-30 17:11:59 EST
qemu/kvm guests aren't allowed to be created in virt-manager since it's checking
if the box is HVM capable. But that check is Xen-centric.
Running core 7 test 2 "Linux swamp-vmm 2.6.20-1.3017.fc7 #1 SMP Thu Mar 22
23:00:37 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux" I cannot build qemu or kvm
machines. I bring up the virtualization manager and KVM is not even in the list
so I select "qemu". I put in the server name and move to the next panel which
asks about the machine architecture. I select x686 or x86_64 and it puts up the
following message: "Hardware Support Required" with a description of "Your
hardware does not appear to support full virtualization.Only paravirtualized
guests will be available on this hardware."
I am running a Pentium D 930 which does support Intel VT. If I boot the Xen
kernel I can successfully create a fully virtualized guest (Fedora Core 6).
(In reply to comment #0)
> qemu/kvm guests aren't allowed to be created in virt-manager since it's
> if the box is HVM capable. But that check is Xen-centric.
I am not sure that I understand your response. Are you saying that a pentium D
930 is not Intel VT? That is certainly not correct. Is it not supposed to be
doing that check for KVM?
Or are you saying that the HVM check is "Xen" centric. I can create a fully
virtualized guest in Xen.
I just tried this on my Development install (updated as of last weekend) and it
works fine (allows the "Hardware acceleration" box to be checked/unchecked) if
you have the kvm and kvm-intel (or kvm-amd as appropriate) kernel modules loaded
and are installing to a supported guest (for example, KVM-acceleration of a x86
box on an x86_64 install would work, but virtualizing a PPC architecture would
have to be done in software).
Created attachment 151146 [details]
A better fix would be to use the libvirt capabilities stuff, but this is a
quick fix to get things working again
Jeremy - thx that got me past the issue. Kind of tired so i will try to put up
the guest tomorrow. Peter - thx for the input. I am running the latest 1.3023
kernel in x86_64 mode (updated day before yesterday) and from the virt mgr I
selected x86_64 and x686 both yielding the same results. My processor is Intel
VT capable (Pentium D 930).
This made it through the creation of the disk for the guest but finish the
install I received the following error in a dialog box:
Guest Install Error
ERROR: virDomainCreateLinux() failed internal error No <source> 'dev'
attribute specified with <interface type='bridge'/>
Unfortunately this fix only corrected the initial problem and now the source
that I have downloaded is backlevel and the new source does not appear to be
downloadable yet. Consequently I tried to use the native qemu from the command
line and I get the following notation when I start an install:
"[root@swamp-vmm vm]# qemu -hda /vm/swampsol1.img -cdrom /dev/cdrom -boot d
-kernel-kqemu -m 768
Could not open '/dev/kqemu' - QEMU acceleration layer not activated"
The install for solaris does not work well and I cannot get fc7 to work at all
from the command line. I will be unavailable from the 11th through the 24th but
I would be happy to test whatever is available upon my return.
This appears to be the same as what this patch went in to fix:
However the patch has been backed out, I presume while upgrading to the latest
I am having the same problem as described in comment #6 Is there a solution for