My reading of the corresponding TDE bug http://bugs.pearsoncomputing.net/show_bug.cgi?id=3027 suggests it may be that a TDE patch is required. Successfully booted into a TDE session because older libICE is installed: # echo $HOSTNAME gx620 # rpm -qa | grep libICE libICE6-1.0.9-4.7.x86_64 # echo $XDG_RUNTIME_DIR /run/user/0 # echo $ICEAUTHORITY # echo $XDG_RUNTIME_DIR/IDEauthority /run/user/0/IDEauthority # echo $HOME/.ICEauthority /root/.ICEauthority