Fixing "Could not update ICEauthority file /var/lib/gdm/.ICEauthority"

> Press Crtl, Alt and F2 to get into CLI mode. > Login as Root > sudo chown -R gdm: /var/lib/gdm

How to reset a Root Password In Fedora

Entering Recovery Mode 1. While you system is starting up, hold down the Ctrl key or Esc to see the boot loader menu. After you see the menu: 2. Use the arrows to select the boot entry you want to modify. 3. Press e to edit the entry. 4. Use the arrows to go to kernel line. 5. Press a or e to append this entry. 6. At the end of the line add the word single or the number 1. 7. Press Enter to accept the changes. 8. Press b to boot this kernel. As root, changing password does not ask for your old password. Run the command: # passwd