Lors de l'installation à partir de la source, vous devrez ajouter un fichier d'unité systemd qui fonctionne avec l'installation de la source. Pour RHEL, Fedora mon fichier d'unité ressemble à :
/usr/lib/systemd/system/postgresql.service
[Unit]
Description=PostgreSQL database server
After=network.target
[Service]
Type=forking
User=postgres
Group=postgres
# Where to send early-startup messages from the server (before the logging
# options of postgresql.conf take effect)
# This is normally controlled by the global default set by systemd
# StandardOutput=syslog
# Disable OOM kill on the postmaster
OOMScoreAdjust=-1000
# ... but allow it still to be effective for child processes
# (note that these settings are ignored by Postgres releases before 9.5)
Environment=PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
Environment=PG_OOM_ADJUST_VALUE=0
# Maximum number of seconds pg_ctl will wait for postgres to start. Note that
# PGSTARTTIMEOUT should be less than TimeoutSec value.
Environment=PGSTARTTIMEOUT=270
Environment=PGDATA=/usr/local/pgsql/data
ExecStart=/usr/local/pgsql/bin/pg_ctl start -D ${PGDATA} -s -w -t ${PGSTARTTIMEOUT}
ExecStop=/usr/local/pgsql/bin/pg_ctl stop -D ${PGDATA} -s -m fast
ExecReload=/usr/local/pgsql/bin/pg_ctl reload -D ${PGDATA} -s
# Give a reasonable amount of time for the server to start up/shut down.
# Ideally, the timeout for starting PostgreSQL server should be handled more
# nicely by pg_ctl in ExecStart, so keep its timeout smaller than this value.
TimeoutSec=300
[Install]
WantedBy=multi-user.target
Activez ensuite le service au démarrage et démarrez le service PostgreSQL :
$ sudo systemctl daemon-reload # load the updated service file from disk
$ sudo systemctl enable postgresql
$ sudo systemctl start postgresql
# systemctl start postgresql.service
Certains environnements traduiraient service <name> start à systemctl start <name>.service , mais vous n'êtes pas obligé de vous y fier.