How to reset the root password of the mysql server in ubuntu

In ubuntu, how does one reset the root password of the mysql server and install mysql 5 server in ubuntu? Why, the root account password entered during installation cannot be verified by the database server in any way. Instead, you only need to reset the password of the mysql root Account. Check that the root account password is successfully reset using the following methods. First stop the mysql service: www.2cto.com root @ webserver:/home/webmaster # service mysql stop and then re-create a mysql service in the ignore Password Authentication Mode: root @ webserver: /home/webmaster # mysqld -- user = mysql -- skip-grant-tables -- skip-networking & after successful startup, the PID and other startup information are returned: 1 [1] 3591 2 root @ webserver:/home/webmaster #121005 2:59:27 [Note] Plugin 'federated 'is disabled. 3 121005 2:59:27 InnoDB: The InnoDB memory heap is disabled 4 121005 2:59:27 InnoDB: Mutexes and rw_locks use GCC atomic builtins 5 121005 2:59:27 InnoDB: Compressed tables use zlib 1.2.3.4 6 121005 2:59:27 InnoDB: initializing buffer pool, size = 128.0 M 7 121005 2:59:27 InnoDB: Completed initialization of buffer pool 8 121005 2:59:27 InnoDB: highest supported file format is Barracuda. 9 121005 2:59:27 InnoDB: Waiting for the background threads to start10 121005 2:59:28 InnoDB: 1.1.8 started; log sequence number 159568511 121005 2:59:28 [Note] mysqld: ready for connections.12 Version: '5. 5.24-0ubuntu0. 12.04.1 'socket: '/var/run/mysqld. sock 'port: 0 (Ubuntu) www.2cto.com connect to the mysql System Library: root @ webserver: /home/webmaster # mysql-u root mysql connects to the mysql database and directly changes the password of the root account to the new password 'mynewpasswd': Type 'help; 'or' \ H' for help. type '\ C' to clear the current input statement. mysql> update user set Password = PASSWORD ('mynewpasswd') where user = 'root'; Query OK, 3 rows affected (0.00 sec) Rows matched: 3 Changed: 3 Warnings: 0 mysql> flush privileges; mysql> quit; Bye www.2cto.com stop the mysql service process (for PID 3591, see the screen information when the service is started): root @ webserver: /home/webmaster # kill 3591 start the mysql service normally and log on to the mysql server with a new password: root @ webserver:/home/webmaster # service mysql startroot @ webserver: /home/webmaster # mysql-u root-pmynewpasswd