service mysqld restart Stopping mysqld: [ OK ] MySQL Daemon failed to start. Starting mysqld: [FAILED]
sudo more /var/log/mysqld.log
2017-07-14 03:32:18 25768 [ERROR] /usr/sbin/mysqld: unknown variable 'default-character-set=utf8' 2017-07-14 03:32:18 25768 [ERROR] Aborting
>sudo vi /etc/my.cnf [mysqld] server-id=2 #default-character-set=utf8 character-set-server=utf8 ... >sudo service mysqld start Starting mysqld: [ OK ]