无法将mysql数据库格式从STATEMENT更改为ROW

Question

I'am using mysql 5.5.21 and trying to change mysql db from STATEMENT format to ROW for replication purpose.

I tried it in two ways editing the configuration file or during the runtime.

1.The changes I have done in configuration file is adding a line under mysqld "--binlog-format=ROW to change it into row format but it didn't work.

2.Again I tried to change it during run time, for that I declared the command

mysql> SET GLOBAL binlog_format = 'ROW';

Also I logedin as super user in mysql.

Please help me to solve this issue. Thanks in advance.