Allow root login

To allow GUI login for root:

• 1. Enter as root, either by using su, sudo or logging in using a text console (<CTRL><ALT><F2>, for instance).

  2. Edit /etc/pam.d/gdm

  3. Comment (add # to the beginning of the line) the line that reads:

• • auth required pam_succeed_if.so user != root quiet

1. Repeat for gdm-password file.