18.04: Allow root login via GUI

--- 18.04: Allow root login via GUI---

skubuntu.com/questions/967789/any-idea-on-how-to-enable-root-login-through-gui-on-17-10

vi /etc/gdm3/custom.conf
     [security]
     AllowRoot=true

vi /etc/pam.d/gdm-password
     ### auth required pam_succeed_if.so user != root quiet_success

The deskstop needs to be stopped and restarted it is really easier to : reboot.

CENTOS|RHEL|OEL

vi /etc/gdm/custom.conf
     [security]
     AllowRoot=true