$ sudo systemctl status postgresql -- postgresql.service - PostgreSQL database server Loaded: loaded (/usr/lib/systemd/system/postgresql.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Tue 2021-10-26 17:11:53 CDT; 2min 49s ago Process: 17336 ExecStart=/usr/bin/pg_ctl -s -D ${PGROOT}/data start -w -t 120 (code=exited, status=1/FAILURE) CPU: 7ms Oct 26 17:11:53 SVRNAME systemd[1]: Starting PostgreSQL database server... Oct 26 17:11:53 SRVNAME postgres[17338]: 2021-10-26 17:11:53.420 CDT [17338] FATAL: database files are incompatible with server Oct 26 17:11:53 SRVNAME postgres[17338]: 2021-10-26 17:11:53.420 CDT [17338] DETAIL: The data directory was initialized by PostgreSQL version 13, which is not compatible with this version 14.0. Oct 26 17:11:53 SRVNAME postgres[17336]: pg_ctl: could not start server Oct 26 17:11:53 SRVNAME postgres[17336]: Examine the log output. Oct 26 17:11:53 SRVNAME systemd[1]: postgresql.service: Control process exited, code=exited, status=1/FAILURE Oct 26 17:11:53 SRVNAME systemd[1]: postgresql.service: Failed with result 'exit-code'. Oct 26 17:11:53 SRVNAME systemd[1]: Failed to start PostgreSQL database server.
-- postgresql.service - PostgreSQL database server
Loaded: loaded (/usr/lib/systemd/system/postgresql.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2021-10-26 17:11:53 CDT; 2min 49s ago
Process: 17336 ExecStart=/usr/bin/pg_ctl -s -D ${PGROOT}/data start -w -t 120 (code=exited, status=1/FAILURE)
CPU: 7ms
Oct 26 17:11:53 SVRNAME systemd[1]: Starting PostgreSQL database server...
Oct 26 17:11:53 SRVNAME postgres[17338]: 2021-10-26 17:11:53.420 CDT [17338] FATAL:
database files are incompatible with server
Oct 26 17:11:53 SRVNAME postgres[17338]: 2021-10-26 17:11:53.420 CDT [17338] DETAIL:
The data directory was initialized by PostgreSQL version 13,
which is not compatible with this version 14.0.
Oct 26 17:11:53 SRVNAME postgres[17336]: pg_ctl: could not start server
Oct 26 17:11:53 SRVNAME postgres[17336]: Examine the log output.
Oct 26 17:11:53 SRVNAME systemd[1]: postgresql.service: Control process exited, code=exited, status=1/FAILURE
Oct 26 17:11:53 SRVNAME systemd[1]: postgresql.service: Failed with result 'exit-code'.
Oct 26 17:11:53 SRVNAME systemd[1]: Failed to start PostgreSQL database server.