Authenticate root to login in GUI mode in Fedora 10
Today I have installed Fedora10 in my PC in Virtual Box.I was aware that by default Fedora 10 do not permit root to login in Runlevel 5.Fedora has tightened their security.I solved and tested the root authentication issue in my PC.
Copy the gdm file
sudo cp -prf /etc/pam.d/gdm ~/gdm.backup
Edit gdm file
Find and comment this line in file /etc/pam.d/gdm
sudo vi /etc/pam.d/gdm ... # auth required pam_succeed_if.so user != root quiet ...
Logoff or Restart
Logoff or restart the Desktop. Try with root login.