Fedora 11: Install Problem-GNOME Power Manager

Fedora 11 problem:

             "Install Problem!

             the configuration defualts of GNOME Power Manager have not been installed correctly.

            contact..."

boot cause:

          the harddisk is 100% full, need del some file to release  some space.

solving solution:

            using ctrl+alt+f2 enter text mode,and release some space.

            then reboot!