In Linux, MySQL forgets the root password 1.1 and mysqlroot.

In Linux, MySQL forgets the root password 1.1 and mysqlroot.
1. First confirm that the server is in a secure state, that is, no one can connect to the MySQL database at will.
Because, during the resetting of the MySQL root Password, the MySQL database is completely out of password-free
Other users can log on to and modify MySQL information as needed. You can use
The external port is closed, and Apache and all user processes are stopped to implement server quasi-security.
Status. The safest status is to operate on the server Console and unplug the network cable.
2. modify the MySQL Logon Settings: (the change here is/etc/my. cnf file. If you install different mysql versions, the configuration file is located in different locations, for example, my files are/usr/local/mysql/my. cnf. If you are in windows, it may be my. ini, but the content structure is the same)
# Vi/etc/my. cnf
In the [mysqld] section, add skip-grant-tables.
For example:
[Mysqld]
Datadir =/var/lib/mysql
Socket =/var/lib/mysql. sock
Skip-grant-tables
Save and exit vi.
3. Restart mysqld
#/Etc/init. d/mysqld restart
Stopping MySQL: [OK]
Starting MySQL: [OK]
4. log on to and modify the MySQL root Password
#/Usr/bin/mysql
Welcome to the MySQL monitor. Commands end with; or \ g.
Your MySQL connection id is 3 to server version: 3.23.56
Type 'help; 'or' \ H' for help. Type '\ C' to clear the buffer.
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-
Database changed
Mysql> UPDATEMysql. userSET Password = password ('new-password') WHERE User = 'root ';
Query OK, 0 rows affected (0.00 sec)
Rows matched: 2 Changed: 0 Warnings: 0
Mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
Mysql> quit
Bye
5. Modify the MySQL Logon Settings.
# Vi/etc/my. cnf
Delete the skip-grant-tables added to the [mysqld] section.
Save and exit vi.
6. Restart mysqld
#/Etc/init. d/mysqld restart
Stopping MySQL: [OK]
Starting MySQL: [OK]

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Reference: http://www.cnblogs.com/allenblogs/archive/2010/08/12/1798247.html