[MySQL] MySQL5.6忘记root密码

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环境： CentOS6.7 + MySQL5.6，忘记root密码。

重置方法：

1. 停止MySQL服务

[root@vm ~]# service mysql stop

2. 修改MySQL配置文件，取消账号验证

[root@vm ~]# vi /etc/my.cnf
[mysqld]
skip-grant-tables

3. 修改root密码

[root@vm ~]# mysql -uroot -p
Enter password:   不需要输入密码，直接回车
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.21 MySQL Community Server (GPL)

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

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 mysql.user set password=password('password') where user='root';
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4  Changed: 4  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye
[root@vm ~]# 

4. 恢复MySQL配置文件，去掉刚添加的配置

[root@vm ~]# vi /etc/my.cnf
[mysqld]
#skip-grant-tables

5. 启动MySQL服务，使用root账密登录成功

[root@vm ~]# service mysql start
[root@vm ~]# mysql -uroot -p
Enter password:password 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.21 MySQL Community Server (GPL)

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

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