MySQL5.7 forgets the root password and resets the password

You can try to mysqldboot in safe mode.

Note, however, mysqldthat booting in safe mode using is a bit more complicated. Here is a basic step:

1. Find my.cnfthe file : my.cnfis the MySQL configuration file, usually located in /etc/my.cnf, /etc/mysql/my.cnfor ~/.my.cnf.

2. Edit my.cnfthe file : [mysqld]Add the following line below the section of the file:

   skip-grant-tables
   

   This will allow MySQL to skip the privilege table the next time it starts, allowing you to log in directly.

3. Restart the MySQL service :

   sudo systemctl stop mysqld
   sudo systemctl start mysqld
   

4. Connect to MySQL and reset the password :

   mysql -u root
   USE mysql;
   UPDATE user SET authentication_string=PASSWORD("newpassword") WHERE User='root';
   FLUSH PRIVILEGES;
   EXIT;
   

   Replace "newpassword"with your desired new password.

5. To restore the original my.cnfsettings : edit my.cnfthe file, remove skip-grant-tablesthe line, and restart the MySQL service again.

Remember, before editing any configuration files, it's a good idea to make a backup in case something goes wrong. .