I installed the 8.3 postgres the amount of giving the command: bash-3.2$ /usr/local/postgres_8.3/bin/initdb -D /base/data
the result is: The files belonging to this database system will be owned by user "postgres". This user must also own the server process. The database cluster will be initialized with locale en_US.UTF-8. The default database encoding has accordingly been set to UTF8. The default text search configuration will be set to "english". initdb: directory "/base/data" exists but is not empty If you want to create a new database system, either remove or empty the directory "/base/data" or run initdb with an argument other than "/base/data". but do not raise your service