一、结束当前正在运行的mysql进程。
mysql
# /etc/init.d/mysql stop
二、用mysql安全模式运行并跳过权限验证。
# /usr/bin/mysqld_safe --skip-grant-tables
三、重开一个终端以root身份登陆mysql。
# mysql -u root
四、修改root用户口令。
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> update user set Password = PASSWORD('root') where User ='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql> exit
五、结束mysql安全模式,用正常模式运行mysql。
# /etc/init.d/mysql restart
六、试试你新修改的口令
mysql> show grants for 'root'@'127.0.0.1';
mysql> flush privileges;
mysql> quitsql