If you don’t remember your MySQL root password, you can follow the steps below to reset it to a new value. The following example uses MySQL with Bitnami Ubuntu instance. Substitute the directory paths with where you have MySQL installed.
Create a file in /home/bitnami/mysql-init with the content shown below (replace NEW_PASSWORD with the password you wish to use):
UPDATE mysql.user SET Password=PASSWORD('NEW_PASSWORD') WHERE User='root'; FLUSH PRIVILEGES;
If your stack ships MySQL v5.7.x, use the following content instead of that shown above:
UPDATE mysql.user SET authentication_string=PASSWORD('NEW_PASSWORD') WHERE User='root';
FLUSH PRIVILEGES;
TIP: Check the MySQL version with the command
/opt/bitnami/mysql/bin/mysqladmin --version
or
/opt/bitnami/mysql/bin/mysqld --version.
Stop the MySQL server:
sudo /opt/bitnami/ctlscript.sh stop mysql
Start MySQL with the following command:
sudo /opt/bitnami/mysql/bin/mysqld_safe --pid-file=/opt/bitnami/mysql/data/mysqld.pid --datadir=/opt/bitnami/mysql/data --init-file=/home/bitnami/mysql-init 2> /dev/null &
Restart the MySQL server:
sudo /opt/bitnami/ctlscript.sh restart mysql
Remove the script:
rm /home/bitnami/mysql-init
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