Linux下忘记root密码重置过程笔记

1.[root@VM_132_65_centos init.d]# service mysql stop
Shutting down MySQL. SUCCESS! 

2.[root@VM_132_65_centos init.d]# mysqld_safe --skip-grant-tables

3.另外打开一个窗口

[root@VM_132_65_centos ~]# mysql

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.5.56-log Source distribution

Copyright (c) 2000, 2017, 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

Database changed

mysql> update user set password=password("新密码") where user="root";

Query OK, 3 rows affected (0.00 sec)

Rows matched: 3  Changed: 3  Warnings: 0

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> exit

Bye

[root@VM_132_65_centos ~]# service mysql restart

Shutting down MySQL. SUCCESS! 

用新的密码登录吧！