Seem to unable to get root on the VT2 shell

I can’t seem to get root on the VT2 shell. I don’t know how to get login into root. I am trying to get CRAP on the chromebook and it says to run with root instead of chronos and I cant do sudo su or login with root. I have tried changing the password with sudo passwd root and can’t. Can anyone please help me.

power wash and don’t click things you don’t understand / aren’t explicitly told to enable (ie, don’t enable ChromeOS Debugging options)