Read this before doing anything. Why is it bad to run as root?
First of all, you must set
root 's password.
sudo passwd root Enter new UNIX password:
Now you have
root password. Now activate the
sudo usermod -U root
Then you should allow lightdm, gdm or kdm to allow logging in as
To enable this:
/etc/gdm/custom.conf file and include
/etc/kde4/kdm/kdmrc file and change
This procedure enables the "Other" menu, so you can type the username
root and login. You must edit
/etc/lightdm/lightdm.conf and add
greeter-show-manual-login=true. Then reboot.
Others session managers have other methods to accomplish this.
As you have noticed I gave the instructions but by any circumstance you should not run the GUI as root. Murphy's Law says that it is likely that you mess up somehow and will be annoyed starting again.
I played around enough, how do I go back?
To disable root login just type:
sudo passwd -dl root
Then revert the changes on the files above. Did it feel good having super-cow powers?