Authentication is required to install software packages For Knoppix
 

I have had some help with root password su and sudo su, but I can not find the correct password to install or remove programs. I keep getting the same message ' Authenticate' Authentication is required to install software packages. An application is attempting to perform an action that requires privileges. Authentication is required to perform this action.
Then it asks for a password, I've tried enter, seacats, knoppix, user, and my root password. None of these work I seem to be a second user and not the owner. This is very frustrating all help is greatly appreciated.
My Linux language is very low, but I am learning, right now in order to find or try to install software I go through the startup menu> preferences> software center. Is there another way to find and install software that doesn't require and authentication password? If so where do I find out the steps to do this? Hands on is always the best teacher.
Again thank you all for your patients and time.
Jonnynitro138

To become root, try this:

su -

Make sure you use the -

You could try rebooting the system into single user mode are reseting the root password. A quick google should find you instructions on how to do that.