1.停止mysql程序
[root@H0f ~]# service mysqld stop
Stopping mysqld: [ OK ]
2.打开mysql配置文件
[root@H0f ~]# vim /etc/my.cnf
搜索mysqlld /mysqld
[mysqld]#下一行添加
skip-grant-tables #忽略MySQL权限问题，直接登录
3.开启MySQL服务
[root@H0f ~]# service mysqld start
4.无密码直接进入mysql
[root@H0f ~]# mysql Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 2 Server version: 5.1.73-log Source distribution Copyright (c) 2000, 2013, 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.
5.使用mysql表，进行修改密码
mysql> use mysql
Database changed
mysql> update user set password=password("123") where user="root";#密码修改为123
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
6.刷新权限
mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
7.杀死所有mysqld进程
[root@H0f ~]# killall mysqld [root@H0f ~]# ps -ef|grep mysqld root 53342 45198 0 20:57 pts/6 00:00:00 grep mysqld
8.开启mysqld服务
[root@H0f ~]# service mysqld start Starting mysqld: [ OK ]
9.测试进入mysql
[root@H0f ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 2 Server version: 5.1.73-log Source distribution Copyright (c) 2000, 2013, 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>