| 1. Create the backup of grub.conf # cp --preserve=context /etc/grub.conf /etc/grub.bak
2. Add biosdevname=0 to Kernel boot argument in /etc/grub.conf
3. Goto to the directory #cd /etc/sysconfig/netwrok-scripts/ Check for the interfaces #ls open the file ifcfg-em1 in editor Rename interface, by changing the line Device="em1" similarly(em2,em3,em4) to Device="eth0" similarly(eth1,eth2,eth3)
4. Delete /etc/udev/rules.d/70-persistant-net.rules (If Exists)
5. Reboot |