$ su - postgres
$ initdb
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 ja_JP.UTF-8.
The default database encoding has accordingly been set to UTF8.
fixing permissions on existing directory /var/lib/pgsql/data ... ok
creating directory /var/lib/pgsql/data/global ... ok
creating directory /var/lib/pgsql/data/pg_xlog ... ok
creating directory /var/lib/pgsql/data/pg_xlog/archive_status ... ok
creating directory /var/lib/pgsql/data/pg_clog ... ok
creating directory /var/lib/pgsql/data/pg_subtrans ... ok
creating directory /var/lib/pgsql/data/pg_twophase ... ok
creating directory /var/lib/pgsql/data/pg_multixact/members ... ok
creating directory /var/lib/pgsql/data/pg_multixact/offsets ... ok
creating directory /var/lib/pgsql/data/base ... ok
creating directory /var/lib/pgsql/data/base/1 ... ok
creating directory /var/lib/pgsql/data/pg_tblspc ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 1000
creating configuration files ... ok
creating template1 database in /var/lib/pgsql/data/base/1 ... ok
initializing pg_authid ... ok
enabling unlimited row size for system tables ... ok
initializing dependencies ... ok
creating system views ... ok
loading pg_description ... ok
creating conversions ... ok
setting privileges on built-in objects ... ok
creating information schema ... ok
vacuuming database template1 ... ok
copying template1 to template0 ... ok
copying template1 to postgres ... ok
WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the -A option the
next time you run initdb.
Success. You can now start the database server using:
postmaster -D /var/lib/pgsql/data
or
pg_ctl -D /var/lib/pgsql/data -l logfile start
$ pg_ctl start
postmaster starting
$ createuser rails
Shall the new role be a superuser? (y/n) n
Shall the new role be allowed to create databases? (y/n) y
Shall the new role be allowed to create more new roles? (y/n) n
CREATE ROLE
