Vcenter cloned a virtual machine and found that the network card could not be found when it started, as shown below:
> service network restart
Bringing ip loopback interface
Bringing up interface eth0: Device eth0 does not seem to be present, denitialization.
The reason is that the physical MAC and the system MAC are inconsistent.
vim /etc/rc.local
# Join as follows:
>/etc/udev/rules.d/70-persistent-net.rules
# Restart
Or delete the 70-persistent-net.rules
`` file, and then restart the system to regenerate it.