I was playing with My Virtualbox today and i tried to clone some Centos Servers. But after this, when starting the eth0, it is no more available.
To Solve this
Delete networking interface rules file so that it can be regenerated and reboot your CentOS system.
New Mac address has been generated:
* CentOS & Device eth0 does not seem to be present
* 複製虛擬機 Linux，網卡啟動失敗 Device eth0 does not seem to be...esent, delaying initialization