[ovs-discuss] Libvirtd throwing some error in kvm in openvswitch-2.0.0

[Ramana Reddy]

On Thu, Feb 27, 2014 at 1:00 AM, Kyle Mestery <mestery at noironetworks.com>wrote:

> On Wed, Feb 26, 2014 at 12:56 PM, Ramana Reddy <gtvrreddy at gmail.com>wrote:
>
>> Hi Ben,
>> I created br0 using ovs-vsctl and created VM using virt-manager ( GUI
>> interface).
>> At the time of creation, its throwing the following error:
>>
>> Does virt-manager support creating XML files with the OVS backend yet? It
> didn't
> years back when we added the support into libvirt.
>

Yes. I used virt-manager in ubuntu 12.04 to create VMs with
openvswitch-1.7.1 in bridge mode.
xml files were created for each VM, and I modified those xml files to add
multiple interfaces.
I am not sure what is the problem with current virt-manager.
Anyhow, will figure it what is happening.

Thanks,
Ramana.


>
>> unable to complete install: 'Unable to add bridge br0 port vnet0:
>> Operation not supported'
>>
>> I am not good at libvirtd library and how its working with kvm, but I
>> could not see any error
>> when I created br0 using brctl command after loading linux bridge module(
>> with out openvswitch module).
>>
>> But I did the same setup with ovs-1.7.1 with libvirtd 0.9.8 version, and
>> its working fine.
>> At this time, I am not sure whether its the problem with libvirtd or some
>> thing else.
>>
>> Thanks,
>> Ramana.
>>
>>
>>
>>
>>
>>
>> On Wed, Feb 26, 2014 at 11:44 PM, Ben Pfaff <blp at nicira.com> wrote:
>>
>>> You need to provide information showing what libvirtd did and how it
>>> failed.
>>>
>>> On Wed, Feb 26, 2014 at 10:12:48PM +0530, Ramana Reddy wrote:
>>> > @sachin: Yes I referred the document. But the xml file only comes after
>>> > creating the VM.
>>> > This error is throwing while creating the VM. I tried any way also: I
>>> > created VM after creating br0 using brctl command,
>>> > and deleted br0 and created br0 using ovs-vsctl and modified xml file,
>>> but
>>> > still getting the same error when I start the VM.
>>> >
>>> > @Ben: When I used ubuntu 12.04, KVM with libvirtd version 0.9.8 (
>>> default
>>> > one) and  openvswitch-1.7.1
>>> > Its successfully creating the VMs. There is no need of modifying the
>>> xml
>>> > file.
>>> >
>>> > Libvirtd version 0.9.8 requires both openvswitch kernel module and
>>> brcompat
>>> > kernel module.
>>> > I installed both and created br0 using ovs-vsctl command and created
>>> VM in
>>> > bridge mode. Its perfect.
>>> >
>>> > Where as INSTALL.Libvirt is referring libvirtd version no at least
>>> 0.9.11
>>> > or above. Now I tried with ubuntu 13.10
>>> > with openvswith-2.0.0 and libvirtd ( default version no 1.1.1), But
>>> > openvswitch 2.0.0 does not support
>>> > brcompat module, so I Installed openvswitch kernel module only and
>>> created
>>> > bridge br0, and trying to create
>>> > VM in bridge mode, but its throwing the error.
>>> >
>>> > Is some thing missing in my setup. Is the case that linux bridge
>>> module is
>>> > needed along with openvswitch kernel
>>> > module. I tried all the combinations, but getting the same error. Help
>>> in
>>> > this case is highly appreciated.
>>> >
>>> > Thanks,
>>> > Ramana.
>>> >
>>> >
>>> >
>>> >
>>> > On Wed, Feb 26, 2014 at 9:39 PM, Ben Pfaff <blp at nicira.com> wrote:
>>> >
>>> > > On Wed, Feb 26, 2014 at 12:45:58PM +0530, Ramana Reddy wrote:
>>> > > > I have installed openvswitch-2.0.0 on ubuntu 13.10 ( kernel:
>>> > > > 3.8.0-34-generic), and
>>> > > > created a bridge br0. Now I started virt-manager to install VM.  I
>>> > > selected
>>> > > > bridge
>>> > > > mode  and given br0 as bridge name. After that when I click  finish
>>> > > button
>>> > > > its
>>> > > > throwing the following error (libvirtd version is 1.1.1).
>>> > >
>>> > > The error messages you provided don't give any hint as to the
>>> problem,
>>> > > or even whether Open vSwitch is involved.  For us to help, you will
>>> need
>>> > > to provide additional information showing what libvirtd did and how
>>> it
>>> > > failed.
>>> > >
>>>
>>
>>
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>> http://openvswitch.org/mailman/listinfo/discuss
>>
>>
>
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