plymouth + xterm + sudo: not work...why?

i create file sh, i click file sh will start to executive. but Xterm not work to run plymouthd... instead kdesu is worked to run plymouthd..but i want to use xterm.. maybe i missing something parameter.. this is KDESU **(works)** #!/bin/bash kdesu -c "sudo plymouthd; plymouth --show-splash; sleep 10; plymouth quit" this is xterm **(not work)** #!/bin/bash xterm -geometry 130x15 -fg Plum1 -bg Purple4 -fa 'Monospace' -fs 10 -e 'sudo plymouthd; plymouth --show-splash; sleep 10; plymouth quit' I checked in google but nothing find..damn...