The GreenPlum version is 4.3.8
when I run the gpseginstall utility to create the Greenplum system user (gpadmin) on all hosts and set the password for that user on all hosts occured a error.
Several steps before installing gpseginstall are correct.
I think the reason should that gpadmin user not competence to read root's file,
so I chmod 777 to the file but the error still occured.
the command is gpseginstall -f hostfile_exkeys -u gpadmin -p gpadmin.
who can help me to solve the error.
Here is the picture.