- OS: OpenBSD 7.2
- DB: PostgreSQL 14.5
Each step is described later.
$ doas pkg_add postgresql-server $ doas su - _postgresql $ mkdir /var/postgresql/data $ # --locale below is optional $ initdb -D /var/postgresql/data -U postgres -A scram-sha-256 -E UTF-8 -W --locale=xx_XX.UTF-8 $ # will be asked password of the superuser, "postgres" above $ exit $ doas rcctl enable postgresql $ doas rcctl start postgresql
The one-by-one steps are as follows.
1. Install PostgreSQL Server
Get the package from ports system:
$ doas pkg_add postgresql-server
The output was:
quirks-6.42 signed on 2022-10-30T18:56:25Z postgresql-server-14.5:postgresql-client-14.5: ok useradd: Warning: home directory `/var/postgresql' doesn't exist, and -m was not specified postgresql-server-14.5: ok The following new rcscripts were installed: /etc/rc.d/postgresql See rcctl(8) for details. New and changed readme(s): /usr/local/share/doc/pkg-readmes/postgresql-server
2. Init database
In order to avoid permissions error, switch user to
_postgresql which was created above:
$ doas su - _postgresql
Create the directory for
$ mkdir /var/postgresql/data
initdb to create a database cluster:
$ initdb -D /var/postgresql/data -U postgres -A scram-sha-256 -E UTF-8 -W --locale=xx_XX.UTF-8
-U postgres (=
--user=...) above is the superuser’s name. The password will be asked when
--pwprompt) is set.
-A scram-sha-256 (=
--auth=...) are for the sake of security.
--locale=... is optional for one but en_US.UTF-8.
Also, the documentation (
It is strongly advised that you do not work with the postgres dba account other than creating more users and/or databases or for administrative tasks. Use the PostgreSQL permission system to make sure that a database is only accessed by programs/users that have the right to do so.
As a result, the whole output was:
The files belonging to this database system will be owned by user "_postgresql". This user must also own the server process. The database cluster will be initialized with locale "ja_JP.UTF-8". initdb: could not find suitable text search configuration for locale "ja_JP.UTF-8" The default text search configuration will be set to "simple". Data page checksums are disabled. Enter new superuser password: Enter it again: fixing permissions on existing directory /var/postgresql/data ... ok creating subdirectories ... ok selecting dynamic shared memory implementation ... posix selecting default max_connections ... 20 selecting default shared_buffers ... 128MB selecting default time zone ... Asia/Tokyo creating configuration files ... ok running bootstrap script ... ok performing post-bootstrap initialization ... ok syncing data to disk ... ok Success. You can now start the database server using: pg_ctl -D /var/postgresql/data -l logfile start
Yay, successful. Let’s
3. Start PostgreSQL server
Activate the daemon and start it:
$ doas rcctl enable postgresql $ doas rcctl start postgresql postgresql(ok)
4. Work with the server
The postgresql server daemon is now activated and started. It works as RDBMS and listens to requests from clients.
The configuration files such as postgresql.conf and pg_hba.conf were generated automatically, and also
psql was installed.
They are useful to configure the server.
It is used as a terminal-based front-end to PostgreSQL. By using the password asked above, it’s able to connect to the server:
$ psql -U postgres Password for user postgres:
You will be welcomed :)
psql (14.5) Type "help" for help. postgres=#