1[Unit] 2Description=MySQL database server 3 4[Service] 5ExecStartPre=/bin/sh -c 'test -d /var/mysql/mysql || mysql_install_db --user=mysql --ldata=/var/mysql' 6ExecStart=/usr/bin/mysqld_safe 7Restart=always 8User=mysql 9RuntimeDirectory=mysql 10RuntimeDirectoryMode=0755 11 12[Install] 13WantedBy=multi-user.target 14