Do you have the dnsmasq service running ? In bug 350598, that was my problem. Anything related to dnsmasq or virbr0 in syslog/messages.log ?
** This bug is no longer a duplicate of bug 350598 Fails to start VM after Jaunty upgrade: Failed to add tap interface 'vnet%d' to bridge 'virbr%d' -- kvm images created under 8.10 fail to load https://bugs.launchpad.net/bugs/350751 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
