Thank you very much Hiko. Now the issue got resolved. But post installation of EM, i am running into another postgresql issue. When i login to PGADMIN, the cemdb is not visible. I thought that might be the db did not installed. So i ran the installation script once with database only install. But there i am getting msg that cembd is existed.
But in pgadmin, under databse only one database is visible i.e. postgre. Could you please suggest what is wrong?