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


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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！