Virtualbox has now been updated to version 4.1.6. I remember that in previous versions, image cloning could only be done on the command line, but now it can be done on the interface, which is very convenient.
When cloning, I chose to Reinitialize the MAC Address of all the network cards.
Symptom After the system is started, the network adapter cannot be found. Both netwok restart and reboot are invalid, and the following error message is displayed.
Device eth0 does not seem to be present, delayinitialization.
Using mv /etc/udev/rules.d/70-persistent-net.rules ~ in Resources also does not work.
Then I took a closer look at the content of the file and found that there was something wrong with the configuration of NAME. In addition, the MAC address in the nic configuration of the cloned machine did not have corresponding update, which needed to be manually modified.
When everything is complete, restart the server and the network card is working fine. OK!
References:
1. Virtualbox clone
2. VMWare cannot find the NIC after the VM is cloned or copied
3, udev-linux Man Page