I followed the directions located here http://linuxconfig.org/linux-authentication-login-with-usb-device
Once I reached step 4 I found that the changed authorizations did nothing, so I reverted back, saved over it so I whent back to the end of step 3 and looked up other tutorials and found a video.... the video, which made a successful attempt, did not make any changes to the file. So, I tried login in with making no changes to the authorizations, no joy.
When I see them do su "username" they get this 5 line, 6 line explenation from terminal about their login status. I get a single line that says "no passwd entry for user 'Thornton'"
I dont know what I am doing wrong at this point. As stated in the title I am using the latest version of ubuntu and would like not to leave this half finished.
It still asks me for my writen password and my writen password still works.
Everything in the pictures proveded match up with my results up until this point, so they are not a good reference for understanding where the problem is.