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How To Fix Access Denied Error When Creating MySQL Database on Ubuntu

Ubuntu 7

In this article, we will explore how to fix the “Access Denied” error when creating a MySQL database on Ubuntu. This error often arises due to insufficient user permissions, and we will walk through the steps to resolve it.

Quick Answer

To fix the "Access Denied" error when creating a MySQL database on Ubuntu, you can start MySQL in safe mode, log in as the root user without a password, grant all privileges to the root user, and then restart MySQL normally.

Understanding the Error

The “Access Denied” error typically occurs when the user does not have the necessary privileges to perform a certain action, such as creating a database. The error message might look something like this: “Access denied for user ”@’localhost’ to database ‘database_name'”. This means that the user you are logged in as does not have the necessary privileges to create a database.

Logging in as Root User

To grant the required privileges, you need to log in as the root user. However, if you are unable to log in as the root user due to an “Access Denied” error, you will need to start MySQL in safe mode.

Starting MySQL in Safe Mode

Safe mode allows you to bypass the permission checks. Here’s how to start MySQL in safe mode:

  1. Open the terminal.
  2. Run the following command:
sudo mysqld_safe --skip-grant-tables

In this command, sudo allows you to run the command as an administrator, mysqld_safe starts the MySQL server, and --skip-grant-tables bypasses the permission checks.

Logging in as Root User Without a Password

Once MySQL is running in safe mode, you can log in as the root user without a password. Follow these steps:

  1. Open a new terminal window.
  2. Log in as the root user by running the following command:
mysql -u root

In this command, mysql starts the MySQL command-line client, -u specifies the user name, and root is the user name.

Granting All Privileges to the Root User

Now, you can grant all privileges to the root user. Here’s how:

  1. Run the following command:
GRANT ALL PRIVILEGES ON `%`.* TO 'root'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION;

In this command, GRANT ALL PRIVILEGES grants all privileges, ON %.* specifies all databases and tables, TO 'root'@'localhost' specifies the user and host, IDENTIFIED BY 'password' sets the password, and WITH GRANT OPTION allows the user to grant or remove other users’ privileges. Replace ‘password’ with your desired password.

  1. Exit MySQL by typing exit and pressing Enter.

Restarting MySQL Normally

Finally, restart MySQL normally by running the following command:

sudo service mysql restart

In this command, sudo allows you to run the command as an administrator, service manages system services, mysql is the service name, and restart restarts the service.

Conclusion

Now, you should be able to log in as the root user with the password you set and create databases without any “Access Denied” errors. If you still encounter any issues, please provide more information about your MySQL setup and any error messages you receive, and we can assist you further. For more information on MySQL commands and their parameters, you can refer to the MySQL documentation.

What should I do if I encounter an “Access Denied” error when creating a MySQL database on Ubuntu?

If you encounter an "Access Denied" error when creating a MySQL database on Ubuntu, you can try starting MySQL in safe mode and then log in as the root user to grant the necessary privileges. Follow the steps outlined in the article to resolve the issue.

How do I start MySQL in safe mode on Ubuntu?

To start MySQL in safe mode on Ubuntu, open the terminal and run the command sudo mysqld_safe --skip-grant-tables. This will bypass the permission checks and allow you to log in as the root user without a password.

Can I log in as the root user without a password in safe mode?

Yes, once MySQL is running in safe mode, you can log in as the root user without a password. Open a new terminal window and run the command mysql -u root. This will start the MySQL command-line client and log you in as the root user.

How do I grant all privileges to the root user?

To grant all privileges to the root user, run the command GRANT ALL PRIVILEGES ON %.* TO 'root'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION; while logged in as the root user. Replace ‘password’ with your desired password. This command grants all privileges on all databases and tables to the root user.

How do I restart MySQL normally after making changes?

To restart MySQL normally after making changes, run the command sudo service mysql restart in the terminal. This will restart the MySQL service and apply the changes you made.

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