Created https://answers.launchpad.net/ubuntu/+source/virtualbox-
ose/+question/122834 to track the solution to the general issue.
** Summary changed:
- VirtualBox can't operate in VMX root mode.
+ Removing qemu-kvm doesn't prevent kvm module from getting loaded (purging
works ok)
** Changed in:
This bug as it stands is confusing.
There should be two parts:
- one "Answer" to the question about further explaining the "VirtualBox can't
operate in VMX root mode. Please disable the KVM kernel extension" error message
- one bug about making sure the kvm module is unloaded if you remove KVM.
I
Still a problem in Lucid. I blacklisted the kvm_intel module by editing
the blacklist.conf file:
nano /etc/modprobe.d/blacklist.conf
and adding
"blacklist kvm_intel" to the file.
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** Tags added: patch
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I had some problem with VirtualBox ... I was installing qemu ... so I take it
out and now it is working ... :D
$sudo apt-get purge qemu*
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@ Felix Geyer
I'm on Lucid and running VirtualBox VMs when KVM is loaded does not work
for me (I get the aforementioned error message). I have to unload kvm
and kvm_intel for it to work.
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** Changed in: qemu-kvm (Ubuntu)
Status: New => Triaged
** Changed in: qemu-kvm (Ubuntu)
Importance: Undecided => Medium
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I tried that when I first reported the bug. The files still loaded
despite being blacklisted.
That was my original annoyance. I should have just been able to stop
KVM ever loading, but couldn't
Sent from my iPhone
On 12 May 2010, at 01:20, Christophe Besson wrote:
> (not tested)
> If you w
I still think qemu-kvm shouldn't load those kernel modules when the package has
been removed but not purged.
Please consider sponsoring this fix:
qemu-kvm (0.12.3+noroms-0ubuntu10) maverick; urgency=low
* debian/qemu-kvm.upstart: don't load the kernel modules if the package
has been remove
Running VirtualBox VMs when the kvm module is loaded works for me in Lucid.
Does it fail for anyone?
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(not tested)
If you want to use VirtualBox as your default VT solution and if you don't want
to uninstall kvm, try to not load the kvm modules at startup by adding a new
file in /etc/modprobe.d/kvm-blacklist, containing these directives:
blacklist kvm
blacklist kvm_intel
That should work after t
For me qemu-kvm still loads the kvm kernel modules when the package is
removed but not purged.
** Changed in: qemu-kvm (Ubuntu)
Status: Fix Released => New
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I had this error, removed qemu-kvm and was fine until I applied a kernel
update this morning and then got the error again; modprobe -r kvm_intel
fixed it this time. I am running Lucid 64 bit.
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yes, seems working.
now, I use Ubuntu 10.04 Lucid, and both qemu and virtualbox can be run at same
time, without any setting change.
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This should be fixed in lucid. Can you please test and if it still
doesnt work please re-open.
** Changed in: qemu-kvm (Ubuntu)
Status: New => Fix Released
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The qemu-kvm upstart job shouldn't load the kenel modules when the
package has been removed.
** Also affects: qemu-kvm (Ubuntu)
Importance: Undecided
Status: New
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i use that every time i reboot box sudo modprobe -r kvm_intel
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Hmm, maybe without this line:
sudo initctl reload
I may have been a bit to eager on that one.
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I see this: http://packages.ubuntu.com/karmic/qemu-kvm
But I still do not understand precisely what this package is doing in
_desktop_ Ubuntu? Anyone know why it's here and what relies on it out
the box?
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Hmm, some looking around has made me think this is an error in the qemu-kvm
packaging.
Removing qemu-kvm should remove the qemu-kvm upstart job (which actually loads
the module).
Qemu can run without kvm, but then it isn't using hardware virtualization. This
could be a solution for people only u
It would seem that this has to do with incompatibility of bum with upstart.
sudo stop qemu-kvm
Seems to be the way the go these days. Of course this is more of a patchwork
solution than a final one.
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Yes, this used to work with the bum solution. Afaik it worked because
qemu fired up kvm on start, I don't think actual parallel use of qemu
and VBox was available.
The fact that the bum solution doesn't work anymore in Lucid is quite
inconvenient indeed.
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this problem affected me in ubuntu beta1 10.04
i installed 9.04 and upgraded using update-manager -d
installed virtualbox and now it show this error..
NS_ERROR_FAILURE (0x80004005)
Componente: Console
Interfaccia: IConsole {6375231a-c17c-464b-92cb-ae9e128d71c3}
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Does anyone else remember using both KVM and VirtualBox back in Jaunty
and earlier releases, without conflict? Does anyone know why they
started conflicting?
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This is a serious annoyance. Why not remove the QEMU module or at least
mark it incompatable with virtualbox?
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Why does kvm not remove the kernel module permanently when the package
is uninstalled? Is there some reason to keep it?
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Installing BUM worked foe me. thank you for the tips
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I think that on install, in a debconf box, virtualbox should say that
KVM is the default virtualization service, but that virtualbox kernel
module can't start if the kvm service is running. Would you like to
disable it?
Alternatively, virtualbox could disable the kvm service / unload the kvm
modu
can I use qemu and virutalbox on same ubuntu 9.10 ?
must I remove qemu ?
is there a way to use both ?
This seems something like, "virtualbox tries to kick off qemu ?"
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KVM is the default virtualization system for Ubuntu 9.10:
"The default virtualization technology supported in Ubuntu is KVM, a
technology that takes advantage of virtualization extensions built into
Intel and AMD hardware. For hardware without virtualization extensions
Xen and Qemu are popular sol
For users who still might want to use qemu-kvm, you can use:
sudo update-rc.d -f qemu-kvm remove
To remove the system startup links that insert the module at boot. Now
if you want to use kvm, then run:
sudo /etc/init.d/qemu-kvm start
To insert the module and enable kvm.
This bug suggests that
So why is qemu and/or KVM installed by default in Karmic? What changed,
or is this a mistake?
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Just upgraded from Jaunty to Karmic and I just started seeing this problem.
sudo aptitude purge qemu qemu-kvm
worked !!!
Not sure if it was nessesary to purge both qemu-kvm & qemu, but i did both just
to be sure. I am not using it for anything anyways.
Thanks Germán Pablo Gentile (#15)
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You have qemu working, just remove it and solved.
sudo aptitude purge qemu-kvm
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I'm running Ubuntu Karmic, and even when I had already uninstalled (as
in removed completely) qemu-kvm and kvm, I still had to untick "Full
virtualization on i386 and amd64 hardware - kvm" in Boot Manager to stop
it from starting up... So, "removed completely" doesn't really mean
remove completely.
I'm with Simon in comment #8. Some of us actually use qemu, which
requires qemu-kvm. There was no conflict with VirtualBox in Jaunty.
Why the conflict now?
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I just upgraded from 9.04 to 9.10 and VB 3.08 to 3.10. Also get the
same message as in the original bug report. The workaround:
sudo modprobe -r kvm-intel
worked, but that's a cludge. I am not a great linuxer, and don't know
how to fix this "nicely"
Yav
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I just found the same issue after upgrading to Ubuntu 9.10 and VirtualBox 3.x.
For some reason the package qemu-kvm got installed and that's what runs the kvm
module.
Before I was using VirtualBox 2.2 (not the OSE version, but the personal use
version from virtualbox.org) in Ubuntu 9.04. I don't
** Changed in: virtualbox-ose (Ubuntu)
Importance: Undecided => Medium
** Changed in: virtualbox-ose (Ubuntu)
Status: New => Triaged
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I think if KVM is not installed, the module should not be loaded. Or at least,
they should not be loaded by default. Those who want to use KVM will load them.
I have too the problem with Jaunty and VirtualBox (either the OSE one - v2.1.4
- in the Ubuntu repositories or the Sun deb one - v2.2.2).
Only problem with this workaround is what if you are actually using KVM?
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With VirtualBox 2.1.2 on Intrepid (binary packs from Sun) it is enough
to stop kvm service to unload the kvm module.
$ sudo /etc/init.d/kvm stop
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Thank you Motin. Your fix worked for me.
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Thanks for the tip Motin, I don't need to manually unload the module
each time I reboot now.
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The workaround is to disable KVM:
1. Install "bum" (Boot-up Manager): sudo apt-get install bum
2. Start Boot-up Manager (in systems menu) and untick "Full virtualization on
i386 and amd64 hardware - kvm"
3. Click Apply
Answer yes to make the change effective right away.
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Windows users have the same problem, see
http://forums.virtualbox.org/viewtopic.php?t=7796&highlight=vmx+root+mode
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That works, it's a good work around, thanks, but virtualbox should work
directly "out of box".
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I faced the same problem and modprobe -r kvm_intel solved it for me
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