iSeries - LSF 9 startpfrmi problem

Hi, I am installing LSF 9.0.0.6 on the IBM iSeries machine. I get the error message as follows:

@@ h2 Enabling servers
@@ run qsh_out -c "startlaw -enable pfrmi"
Service pfrmi enabled.
@@ run qsh_out -c "startlaw -enable pfem"
Service pfem enabled.
@@ run qsh_out -c "startlaw -enable pfbpm"
Service pfbpm enabled.
@@ run qsh_out -c "startlaw -enable pfsch"
Service pfsch enabled.
@@ h2 Starting servers ...
@@ run qsh_out -c "perl /LAW9/gen/bin/startpfrmi"
Startup of pfrmi completed.
ProcessFlow RMI Server is not running on 10.2.15.4:16003
@@ run qsh_out -c "perl /LAW9/gen/bin/startpfem"
Startup of pfem completed.
Event Manager is not running
@@ run qsh_out -c "perl /LAW9/gen/bin/startpfbpm"
Startup of pfbpm completed.
ProcessFlow Server is not running
@@ run qsh_out -c "perl /LAW9/gen/bin/startpfsch"
Startup of pfsch completed.
ProcessFlow Scheduler is not running
@@ h2 Verifying servers started ...
@@ cmd perl /LAW9/gen/bin/pfserv ping rmi
@@ h2 RMI server NOT started
@@ cmd perl /LAW9/gen/bin/pfserv ping em
@@ h2 EventManager server NOT started
@@ cmd perl /LAW9/gen/bin/pfserv ping bpm
@@ h2 BPM server NOT started
@@ cmd perl /LAW9/gen/bin/pfserv ping sch
@@ h2 Scheduler server NOT started
Fatal: [install-pf.pl] Not all the ProcessFlow servers could be started.
Error: Fatal: [install-pf.pl] Not all the ProcessFlow servers could be started.
Error: Activating Process Flow failed.
**** 2010.09.28 14.19.35 RESTART Failed.
Cleaning up
Deleting library LSFCT83

Would someone can help me point where the problem is?

Thanks a lot.

Huizong