1.修改/etc/my.conf，添加參數skip-grant-tables 2.重啟mysql service mysqld stop service mysqld start 3.用root 直接登錄 [root@bogon ~]# mysql -uroot Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4 Server version: 5.7.11 MySQL Community Server (GPL)Copyright (c) 2000, 2016, 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> 4.修改密碼 mysql> alter user 'root'@'localhost' identified by 'newpassword'; ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement mysql> 這種方式不好使，換一種方式：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 -ADatabase changed mysql> update user set authentication_string=PASSWORD('newpassword') where User='root'; Query OK, 1 row affected, 1 warning (0.07 sec) Rows matched: 1 Changed: 1 Warnings: 1mysql> 5.將/ect/my.conf 修改回來，重啟mysql 測試新密碼 [root@bogon ~]# service mysqld stop Stopping mysqld: [ OK ] [root@bogon ~]# service mysqld start Starting mysqld: [ OK ] [root@bogon ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.11 MySQL Community Server (GPL)Copyright (c) 2000, 2016, 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>修改完成

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轉載于:https://www.cnblogs.com/Alex-Zeng/p/5508766.html

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