转移虚拟机后ubuntu network available SIOCSIFADDR: No such device

After cloning a virtual machine running Ubuntu Server 10.04 found that it didn
’t have any network available.

Restarting networking gave:
sudo /etc/init.d/networking restart * Reconfiguring network interfaces... eth0
: ERROR

while getting interface flags:
No such device SIOCSIFADDR: No such device eth0: ERROR

while getting interface flags:
No such device SIOCSIFNETMASK: No such device SIOCSIFBRDADDR: No such device
eth0: ERROR

while getting interface flags:
No such device eth0: ERROR while getting interface flags: No such device
Failed to bring up eth0.

The problem lies in the fact that ethernet MAC addresses are cached.
You need to remove a file to clear the cached value:

sudo rm /etc/udev/rules.d/70-persistent-net.rules

After a restart of your server you should have networking back again.