mysql密码丢失 ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
密码丢失修改密码
mysql> use mysql ERROR 1820 (HY000): You must SET PASSWORD before executing this statement mysql> exit Bye [root@localhost ~]# /etc/init.d/mysql stop ERROR! MySQL server process #17602 is not running! [root@localhost ~]# ps -ef|grep mysql root 18980 15786 0 21:11 pts/3 00:00:00 grep mysql
下面是修改步骤
[root@localhost ~]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
[1] 19128
[root@localhost ~]# 150610 21:11:39 mysqld_safe Logging to '/var/lib/mysql/localhost.localdomain.err'.
150610 21:11:39 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
mysql -u root mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.24 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, 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> UPDATE user SET Password=PASSWORD('broadtech') where USER='root';
Query OK, 0 rows affected (0.00 sec)
Rows matched: 4 Changed: 0 Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
[root@localhost ~]# /etc/init.d/mysql restart
Shutting down MySQL..150610 21:12:36 mysqld_safe mysqld from pid file /var/lib/mysql/localhost.localdomain.pid ended
SUCCESS!
Starting MySQL. SUCCESS!
[1]+ Done mysqld_safe --user=mysql --skip-grant-tables --skip-networking
[root@localhost ~]#
You have new mail in /var/spool/mail/root
[root@localhost ~]#
[root@localhost ~]# ps -ef |grep mysql
root 19496 1 0 21:12 pts/3 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.localdomain.pid
mysql 19597 19496 2 21:12 pts/3 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/localhost.localdomain.err --pid-file=/var/lib/mysql/localhost.localdomain.pid
root 19627 15786 0 21:12 pts/3 00:00:00 grep mysql
最后修改完成
[root@localhost ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.24 Copyright (c) 2000, 2015, 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>
但是登陆后，执行还是会报错
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement，必须重新设置一次密码：
[root@localhost ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 35
Server version: 5.6.24
Copyright (c) 2000, 2015, 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
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
mysql> SET PASSWORD = PASSWORD('broadtech');
Query OK, 0 rows affected (0.00 sec)
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>
在你用客户端登陆时，会报密码过期， 所以需要再改一次密码
官网说：
It is possible to “reset” a password by setting it to its current value. As a matter of good policy, it is preferable to choose a different password.
所以改为123456
mysql> SET PASSWORD = PASSWORD('123456');
Query OK, 0 rows affected (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
