Description of problem:

Original /etc/sysconfig/network-scripts/ifcfg-ethX configurations are lost when using the script "create-ovirt-network".  

Version-Release number of selected component (if applicable):

0.96

How reproducible:

This happens whenever you specify an ethernet controller to attach to the virtual bridge.  (Use of the '-e' flag)

Steps to Reproduce:
1. create-ovirt-network -e eth1
2.
3.
  
Actual results:
The original configurations are overwritten.

Expected results:
At least a backup copy being made.

Additional info:
Having the ability to migrate the configurations would be greatly appreciated.