Fedora root UI login

Fedora 10 update GDM config to allow root login

Type your root password. Next, make a backup of /etc/pam.d/gdm, enter:
cp /etc/pam.d/gdm /root
Now open /etc/pam.d/gdm using gedit or vi text editor, enter:
gedit /etc/pam.d/gdm
OR
vi /etc/pam.d/gdm
Alternatively, you can do everything in a one command:
su -c 'gedit /etc/pam.d/gdm'
Find line that read as follows:

auth required pam_succeed_if.so user != root quiet

Remove or comment out line by prefixing #.

# auth required pam_succeed_if.so user != root quiet

Save and close the file. Logout from terminal and from GUI itself. Now you should be able login as root user using GDM GUI login manager.