Any idea on how to enable root login through GUI on 17.10?

Question

I was able to to do it on 17.04, but i guess the display manager has changed

I know it is not recommended. But it eases a lot of things for me.

Answer 1

This link points it out for Debian, but instead of daemon.conf just edit custom.conf. Everything else is the same.

In a nutshell, first run

sudo vim /etc/gdm3/custom.conf

Under [security] type AllowRoot=true so that it looks like

[security]
AllowRoot=true

Save and exit. Then run

sudo vim /etc/pam.d/gdm-password

Within this file you have comment out the line containing

auth required pam_succeed_if.so user != root quiet_success

so that it looks like this

#auth required pam_succeed_if.so user != root quiet_success

Save the file and exit and reboot.