I got the following error after trying this command: $sudo virt-install --connect qemu:///system --force --name VM2 --ram=1024 --vcpus=1 --disk path=/var/lib/libvirt/images/VM2.img,size=8,format=qcow2 --cdrom=/home/ramanar/Downloads/ubuntu-14.04.3-server-amd64.iso --vnc --os-variant=ubuntutrusty --network=br0,model=virtio ERROR Error in network device parameters: Unknown network type br0
*br0.xml file:* <network> <name>br0</name> <forward mode='bridge'/> <bridge name='br0'/> <virtualport type='openvswitch'/> </network> Did I miss something. On Tue, Oct 6, 2015 at 12:34 AM, Scott Lowe <scott.l...@scottlowe.org> wrote: > Please see my responses inline, prefixed by [SL]. > > Ramana Reddy <gtvrre...@gmail.com> wrote: > > > Hi Scott, > > > > I followed your blog mentioned in the url. I tried the following steps: > > > > Create a br0.xml file: > > <network> > > <name>br0</name> > > <forward mode='bridge'/> > > <bridge name='br0'/> > > <virtualport type='openvswitch'/> > > </network> > > > > $sudo virsh net-define br0.xml > > Network br0 defined from br0.xml > > > > $sudo virsh net-start br0 > > Network br0 started > > > > $sudo virsh net-list --all > > Name State Autostart Persistent > > ---------------------------------------------------------- > > br0 active no yes > > > > $sudo qemu-img create -f qcow2 /var/lib/libvirt/images/VM2.img 8G > > Formatting '/var/lib/libvirt/images/VM2.img', fmt=qcow2 size=8589934592 > encryption=off cluster_size=65536 lazy_refcounts=off > > > > $sudo virt-install --connect qemu:///system --force --name VM2 > --ram=1024 --vcpus=1 --disk > path=/var/lib/libvirt/images/VM2.img,size=8,format=qcow2 > --cdrom=/home/ramanar/Downloads/ubuntu-14.04.3-server-amd64.iso --vnc > --os-variant=ubuntutrusty --network=bridge:br0,model=virtio > > > > 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 VM2 > > > > $sudo ovs-vsctl show > > 92d0c0b6-bbbb-4f86-aebd-ec4cc33653a3 > > Bridge "br0" > > Port "br0" > > Interface "br0" > > type: internal > > Port "eth0" > > Interface "eth0" > > > > > > > > Any idea why this approach is not working. > > > [SL] If you create a libvirt network to "front end" the OVS bridge, then > you would no longer use "--network=bridge:br0,model=virtio" but > "--network=br0,model=virtio" (specifying the name of the libvirt network > that you created). > > Hope this makes sense. > > > > Some how the second method is working fine. I created a VM using NAT, > and then modified VM XML file as per instructions mentioned below: > > <interface type='bridge'> > > <mac address='52:54:00:71:b1:b6'/> > > <source bridge='br0'/> > > <virtualport type='openvswitch'/> > > <address type='pci' domain='0x0000' bus='0x00' slot='0x03' > function='0x0'/> > > </interface> > > > > This is working now. I tried this one previously, and not working. May > be it messed up with some thing!! > > > > Thanks for all your inputs. I thought that I can go with my old setup > (ubuntu 12.04 with brcompat module with ovs 1.9.3: it was working well). > > > > > > > > > > > > > > On Mon, Oct 5, 2015 at 9:51 PM, Scott Lowe <scott.l...@scottlowe.org> > wrote: > > Please see my response below. > > > > Ramana Reddy <gtvrre...@gmail.com> wrote: > > > > > Hi all, > > > > > > I installed a VM in NAT mode using virt-manager and edited the xml > file as per the > > > instructions given in this link: > > > > > > > http://git.openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Libvirt;hb=HEAD > > > > > > Basically It tells the following modofications: > > > And change it to something like this: > > > > > > ... > > > <interface type='bridge'> > > > <mac address='52:54:00:71:b1:b6'/> > > > <source bridge='ovsbr'/> > > > <virtualport type='openvswitch'/> > > > <address type='pci' domain='0x0000' bus='0x00' slot='0x03' > function='0x0'/> > > > </interface> > > > ... > > > > > > After modifications, I started VM. But its throwing the errors: Unable > to complete install: 'Unable to add bridge br0 port vnet0: Operation not > supported' > > > > > > I started VM with both virsh start VM and virt-manager, but both are > giving the same error. > > > > > > Does any one face the same problem. Please help me in this regards. > > > > > > > > Can you share the actual XML you're using (just the network interface > portion is needed), along with the output of "ovs-vsctl show"? > > > > Also, I (personally) find the easiest way to work with libvirt+KVM+OVS > is to use a libvirt network wrapped around OVS, as described here: > > > > <http://blog.scottlowe.org/2012/11/07/using-vlans-with-ovs-and-libvirt/> > > > > -- > > Scott > > >
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