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Reset MySQL Root Password

Background

If you can no longer access the CDR database in MySQL and do not have a working root account password, the root account may be reset via the following instructions.

The following applies to MySQL 5.6 – please consult the appropriate MySQL user manual for different versions:

Windows

On Windows, use the following procedure to reset the password for all MySQL root accounts:

Step 1) Log on to your system as Administrator.

Step 2) Stop the MySQL server if it is running. For a server that is running as a Windows service, go to the Services manager: From the Start menu, select Control Panel, then Administrative Tools, then Services. Find the MySQL service in the list and stop it.If your server is not running as a service, or the service does not stop correctly, you may need to use the Task Manager to force it to stop.

Step 3) Create a text file containing the following statements. Replace the password with the password that you want to use.

UPDATE mysql.user SET Password=PASSWORD(‘MyNewPass’) WHERE User=’root’;

FLUSH PRIVILEGES;

Write the UPDATE and FLUSH statements each on a single line. The UPDATE statement resets the password for allroot accounts, and the FLUSH statement tells the server to reload the grant tables into memory so that it notices the password change.

Step 4) Save the file. For this example, the file will be named C:mysql-init.txt.

Step 5) Open a console window to get to the command prompt: From the Start menu, select Run, then enter cmd as the command to be run.

Step 6) Start the MySQL server with the special --init-file option (notice that the backslash in the option value is doubled):

C:> C:\mysql\bin\mysqld --init-file=C:\mysql-init.txt

If you installed MySQL to a location other than C:\mysql, adjust the command accordingly.

The server executes the contents of the file named by the --init-file option at startup, changing each rootaccount password.You can also add the --console option to the command if you want server output to appear in the console window rather than in a log file.

If you installed MySQL using the MySQL Installation Wizard, you may need to specify a --defaults-file option:C:\> "C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe" --defaults-file="C:\Program Files\MySQL\MySQL Server 5.6\my.ini" --init-file=C:\mysql-init.txt

The appropriate --defaults-file setting can be found using the Services Manager: From the Start menu, select Control Panel, then Administrative Tools, then Services.

Find the MySQL service in the list, right-click it, and choose the Properties option. The Path to executable field contains the --defaults-file setting.

Step 7) After the server has started successfully, verify that you can log into MySQL with the new password and then deleteC:\mysql-init.txt.

You should now be able to connect to the MySQL server as root using the new password. Stop the MySQL server, then restart it in normal mode again. If you run the server as a service, start it from the Windows Services window. If you start the server manually, use whatever command you normally use. 

Article Source: http://dev.mysql.com/doc/refman/5.6/en/resetting-permissions.html

You may also encounter a condition where you are able to log into the MySQL command line simply by typing mysql, and you are not promted for any username or password. However, attempting to log in with the root username or password fails. If you are able to log into MySQL with this anonymous method. you may attempt to reset the MySQL password with the same syntax as in the script above, only directly from the CLI:

UPDATE mysql.user SET Password=PASSWORD(‘MyNewPass‘) WHERE User=’root’; FLUSH PRIVILEGES;

MAC OSX

Step 1)  Stop the mysqld server.  

Typically this can be done by from ‘System Prefrences’ > MySQL > ‘Stop MySQL Server’

Step 2)  Start the server in safe mode with privilege bypass

     From a terminal:

     sudo /usr/local/mysql/bin/mysqld_safe –skip-grant-tables

Step 3)  In a new terminal window:

     sudo /usr/local/mysql/bin/mysql -u root

     UPDATE mysql.user SET Password=PASSWORD(‘NewPassword’) WHERE User=’root’;

     FLUSH PRIVILEGES;

     \q

Step 4)  Stop the mysqld server again and restart it in normal mode.

Updated on January 29, 2019

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