Greenplum Installation ---- Error logging in

Dear All,

Kindly assist, I have installed greenplum on an Amazon EC2 instance...(Red Hat OS).

But the installation failed and i have been trooubleshooting for 3 days. below are outputs from the error log.

20150523:21:31:16:008047 gpcreateseg.sh:ec2-54-77-20-110:gpadmin-[FATAL][0]:-Failed Update port number to 50000

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-End Function PARALLEL_WAIT

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-End Function PARALLEL_COUNT

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-Start Function PARALLEL_SUMMARY_STATUS_REPORT

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:------------------------------------------------

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-Parallel process exit status

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:------------------------------------------------

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-Total processes marked as completed           = 0

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-Total processes marked as killed              = 0

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[WARN]:-Total processes marked as failed              = 1 <<<<<

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:------------------------------------------------

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-End Function PARALLEL_SUMMARY_STATUS_REPORT

FAILED:ec2-54-77-20-110.eu-west-1.compute.amazonaws.com~50000~/greenplumdb/data1/gpsne0~2~0~0

20150523:21:31:16:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[INFO]:-End Function CREATE_QES_PRIMARY

INSERT 0 1

20150523:21:31:17:001837 gpinitsystem:ec2-54-77-20-110:gpadmin-[FATAL]:-Errors generated from parallel processes

this is my last event on the server and i dont know how to process.

gpadmin@ec2-54-77-20-110 gpAdminLogs]$ /bin/bash /home/gpadmin/gpAdminLogs/backout_gpinitsystem_gpadmin_20150523_213010                                     Stopping Master instance

pg_ctl: PID file "/greenplumdb/master/gpsne-1/postmaster.pid" does not exist

Is server running?

Removing Master log file

Removing Master lock files

Removing Master data directory files

removing directory /greenplumdb/data1/gpsne0 on ec2-54-77-20-110.eu-west-1.compute.amazonaws.com