I am not able to connect zabbix database with mysql database during installation. I am getting frontend does not matches with zabbix database.Also I am not able to create schema with mysql -u zabbix -p zabbix < schema.sql command in unix.I am getting -bash: schema.sql: No such file or directory message.My username and password are zabbix in zabbix.conf.php and zabbix_server.conf files.