Jamie- Try adding "-net user" to the end of the kvm command.
So: $ /usr/bin/kvm -S -M pc -m 384 -smp 1 -name sec-hardy-i386 -uuid c28d7c53-0da0-75c0-b360-df536d434f51 -monitor pty -pidfile /var/run/libvirt/qemu//sec-hardy-i386.pid -boot c -drive file=/srv/vms/kvm/sec-hardy-i386/root.qcow2,if=ide,index=0,boot=on -net nic,macaddr=00:16:36:70:61:a2,vlan=0,model=virtio -net tap,fd=18,script=,vlan=0,ifname=vnet1 -serial none -parallel none -usb -vnc 127.0.0.1:2 -net user This is working like a champ for me, with a Jaunty host, and both Hardy and Jaunty guests: $ kvm -hda hardy-server.img -cdrom ../iso/ubuntu-8.04.1-server-amd64.iso -net nic,model=virtio -net user :-Dustin ** Also affects: virt-manager (Ubuntu) Importance: Undecided Status: New -- virtio on hardy guest and jaunty host (kvm 84) is broken https://bugs.launchpad.net/bugs/331128 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs