Hi all.
I have found a little mistake in the bug "GDM transition fail" (
http://fedoraproject.org/wiki/Common_F19_bugs#gdm-transition-fail).
In last paragraph, when solution is given, the commands order is not
correct.
E.g., if command 'systemctl enable kdm.service' is executed first, fails
because the related link already exists.
So command 'systemctl disable gdm.service' must be executed first.
Best regards.