Loose the ethernet when you moving Ubuntu on VMware ESX ???

Some one can confused because, when you shifting a VM or copy, rename, Vmware asks to update the UUID but when you trying to up the network device you will be seeing something like below,

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





Cause: VMware basses the MAC address of interface on it's internal UUID.

Solution:
Edit /etc/udev/rules.d/70-persistent-net.rules and delete the additional entries if exists and enter the correct MAC address.





Do a restart and the network should be fine.