[Users] error at Creating the database

Hi, I am a newbie. I am trying to build oVirt-engine from source following this tutorial http://www.ovirt.org/Building_oVirt_engine When I am trying to create the database, I am getting the following error: $ ./create_db_devel.sh -u postgres Running original create_db script... Creating the database: engine dropdb: could not connect to database template1: FATAL: Ident authentication failed for user "postgres" createdb: could not connect to database template1: FATAL: Ident authentication failed for user "postgres" Failed to create database engine Failed to create database engine I am on rawhide and I have already altered # tail -3 /var/lib/pgsql/data/pg_hba.conf local all all trust host all all 127.0.0.1/32 trust host all all ::1/128 trust What am I doing wrong? Thanks, Arindam