libvirt users - May 2013 - Libvirt 1.0.5 with Openvswitch 1.11.90: unable to add bridge br0 port vnet0 operation not supported

Howdy,

Running the most recent OVS and libvirt I'm running into the following error
message with virt-install:

root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl -V
ovs-vsctl (Open vSwitch) 1.11.90
Compiled May  6 2013 22:37:22
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#>
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2
--ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none
--network=bridge:br0  --vnc --os-type=linux --cdrom /dev/sr0

Starting install...
ERROR    Unable to add bridge br0 port vnet0: Operation not supported
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start DSL2
otherwise, please restart your installation.
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl del-port br0 vnet0
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> libvirtd --version
libvirtd (libvirt) 1.0.5
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> virsh --version
1.0.5
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2
--ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none
--network=bridge:br0  --vnc --os-type=linux --cdrom /dev/sr0

Starting install...
ERROR    Unable to add bridge br0 port vnet0: Operation not supported
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start DSL2
otherwise, please restart your installation.
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#>
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl show
b81788a2-f45d-4fad-aad2-f423e6e70bad
    Bridge "br0"
        Port "eth1"
            Interface "eth1"
        Port "br0"
            Interface "br0"
                type: internal
        Port "tap0"
            Interface "tap0"
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at qemu-kvm:~/libvirt-1.0.5>

Even if I create a new OVS switch I get the same result:

root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> ovs-vsctl add-br b1
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#> virt-install --connect qemu:///system --name DSL2
--ram 1024 --vcpus 1 --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none
--network=bridge:b1  --vnc --os-type=linux --cdrom /dev/sr0

Starting install...
ERROR    Unable to add bridge b1 port vnet0: Operation not supported
Domain installation does not appear to have been successful.
If it was, you can restart your domain by running:
  virsh --connect qemu:///system start DSL2
otherwise, please restart your installation.
root at qemu-kvm:~/libvirt-1.0.5#<mailto:root at
qemu-kvm:~/libvirt-1.0.5#>

Nothing in the openvswitch log file (OVS itself works fine, I can start VMs with
the kvm command line).

Any clues? I'm not too sure how to trace libvirt calls to OVS (according to
the release notes, versions 1.0+ of libvirtd should work with OVS. Note: I am
not using brcompat, I believe it's obsolete in the OVS version I'm
running).

Thanks,

Chris.
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On 05/07/2013 02:10 AM, Christopher Paggen (cpaggen)
wrote:
>
> Howdy,
>
>  
>
> Running the most recent OVS and libvirt I'm running into the following
> error message with virt-install:
>
>  
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> ovs-vsctl -V
>
> ovs-vsctl (Open vSwitch) 1.11.90
>
> Compiled May  6 2013 22:37:22
>
> root at qemu-kvm:~/libvirt-1.0.5# <mailto:root at
qemu-kvm:%7E/libvirt-1.0.5#>
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> virt-install --connect
> qemu:///system --name DSL2 --ram 1024 --vcpus 1 --disk
> path=/tmp/dsl2,size=1,bus=virtio,cache=none --network=bridge:br0 
> --vnc --os-type=linux --cdrom /dev/sr0
>
>  
>
> Starting install...
>
> ERROR    Unable to add bridge br0 port vnet0: Operation not supported
>
> Domain installation does not appear to have been successful.
>
> If it was, you can restart your domain by running:
>
>   virsh --connect qemu:///system start DSL2
>
> otherwise, please restart your installation.
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> ovs-vsctl del-port br0
vnet0
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> libvirtd --version
>
> libvirtd (libvirt) 1.0.5
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> virsh --version
>
> 1.0.5
>
> root at qemu-kvm:~/libvirt-1.0.5#
> <mailto:root at qemu-kvm:%7E/libvirt-1.0.5#> virt-install --connect
> qemu:///system --name DSL2 --ram 1024 --vcpus 1 --disk
> path=/tmp/dsl2,size=1,bus=virtio,cache=none --network=bridge:br0 
> --vnc --os-type=linux --cdrom /dev/sr0
>
There is nothing in this command line to say that the bridge is an
openvswitch bridge, so libvirt is attempting to treat it as the default
Linux host bridge type.

As a matter of fact, as far as I know virt-install hasn't been enhanced
to support direct description of an openvswitch bridge on its commandline.


The best way to solve this problem is to create a libvirt network to
encapsulate the openvswitch bridge, then tell virt-install to use that
network.

1) Put the following xml into a file (e.g. /tmp/ovsnet.xml):


    <network>
      <name>ovs-br0</name>
      <forward mode='bridge'/>
      <bridge name='br0'/>
      <virtualport type='openvswitch'/>
    </network>

2) define and start the network:

    # virsh net-define /tmp/ovsnet.xml
    # virsh net-start ovs-br0
    # virsh net-autostart ovs-br0

3) run virt-install telling it to use the network "ovs-net":

    # virt-install --connect qemu:///system --name DSL2 --ram 1024
--vcpus 1 \
      --disk path=/tmp/dsl2,size=1,bus=virtio,cache=none \
      --network=ovs-br0 \    <======= THIS LINE IS CHANGED.
      --vnc --os-type=linux --cdrom /dev/sr0


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