Ubuntu version book:
ubuntu12.04
Waiting for network configuration appears when the server starts up, and then the network card hangs up
Solution:
1. Manually find the network card after startup:
sudo ifconfig eth0 up
If the prompt is not then try eth1 until no error message is raised
2. Manually modify the configuration:
sudo vi /etc/network/interfaces
Replace the original ethx with the found network card, for example, replace all eth0 with eth1
3. Restart the network service
sudo /etc/init.d/networking restart