# vi /etc/my.cnf
在[mysqld]的段中加上一句：skip-grant-tables
例如：
[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock skip-grant-tables
保存并且退出vi。
3．重新启动mysqld
# /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
4．登录并修改MySQL的root密码
# /usr/bin/mysql Welcome to the MySQL monitor. Commands end with ; or /g. Your MySQL connection id is 3 to server version: 3.23.56 Type 'help;' or '/h' for help. Type '/c' to clear the buffer. 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 ( 'new-password' ) WHERE User = 'root' ; Query OK, 0 rows affected (0.00 sec) Rows matched: 2 Changed: 0 Warnings: 0 mysql> flush privileges ; Query OK, 0 rows affected (0.01 sec) mysql> quit Bye
5．将MySQL的登录设置修改回来
# vi /etc/my.cnf
将刚才在[mysqld]的段中加上的skip-grant-tables删除
保存并且退出vi。
6．重新启动mysqld
# /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
OK 所有操作均已完成 大吉大利
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