Created attachment 801103 [details]
attached Screenshot

Description of problem:
Clean install ovirt-node-iso-3.1.0-0.999.687.el6.iso
and  enter Security page and selecting "enable ssh password authentication   []"
Then clicking "Save" button to apply it. but an error occurred while applying the 
changes:
Combining  shell=True and a command list does not work. With shell=True the first argument 
must be a string. A list otherwise.


Version-Release number of selected component (if applicable):
ovirt-node-iso-3.1.0-0.999.687.el6.iso


How reproducible:
100% 
 
Steps to Reproduce:

Actual result:


Expect result:


Additional info:
Could meet the same issue when configuring other service in ovirt-node setup menu.