Resolution of Errors : How to Fix “Device eth0 does not seem to be present, delaying initialization” Error on Centos

OS Based            : Linux Centos 6.3 64Bit
Command to use : ifconfig, ifup, rm, reboot, service

I was copying my Oracle Virtual Box VMs from PC to Laptop,Server power on successfully but when I try to connect to the network the VM is isolated.  

Symptoms :

• Check the network using ifconfig command it seems that eth0 has no IP Address
• Restart the the whole network service using service network restart, error shown "Device eth0 does not seem to be present, delaying initialization"

Solutions :

• Remove file 70-persistent-net.rules in order to re-genereate MAC address when the server start-up.

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