Ubuntu - Upgrade de 11.04 a 11.10 Problemas: dbus Couldn't connect to system bus - networking waiting up to 60

Al actualizar Ubuntu de 11.04 a 11.10 si nos encontramos con el problema de que arranca sin conexión de red, dando el siguiente mensaje error:
"waiting up to 60 more seconds for the network configuration"
y:
Couldn't connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

Y tampoco arranca el entorno gráfico, la solución:

sudo mv /var/run/* /run/
sudo mv /var/lock/* /run/lock/
sudo rm -r /var/run
sudo rm -r /var/lock
sudo ln -s /run /var/run
sudo ln -s /run/lock /var/lock
sudo rm /run/dbus/*