postgres@DESKTOP-1TPO12P:~$ /etc/init.d/postgresql start
     * Starting PostgreSQL 10 database server                                                                                * Error: /usr/lib/postgresql/10/bin/pg_ctl /usr/lib/postgresql/10/bin/pg_ctl start -D /var/lib/postgresql/10/main -l /var/log/postgresql/postgresql-10-main.log -s -o  -c config_file="/etc/postgresql/10/main/postgresql.conf"  exited with status 1:
    2019-04-30 14:58:57.825 DST [123] LOG:  listening on IPv4 address "127.0.0.1", port 5432
    2019-04-30 14:58:57.837 DST [123] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
    2019-04-30 14:58:57.891 DST [124] LOG:  database system was interrupted; last known up at 2019-04-30 14:44:15 DST
    2019-04-30 14:58:57.891 DST [124] PANIC:  could not flush dirty data: Function not implemented
    2019-04-30 14:58:57.891 DST [123] LOG:  startup process (PID 124) was terminated by signal 6: Aborted
    2019-04-30 14:58:57.891 DST [123] LOG:  aborting startup due to startup process failure
    2019-04-30 14:58:57.901 DST [123] LOG:  database system is shut down
    pg_ctl: could not start server
    Examine the log output.