Angelo
Angelo
I am Angelo. A systems engineer passionate about Linux and all open-source software. Although here I'm just another member of the family.

How To Install MySQL on CentOS 9 Stream

Hello, friends. In this post, you will learn how to install MySQL on CentOS 9 Stream.

MySQL is a powerful relational database manager owned by Oracle. It is open source but also has dedicated enterprise support, which makes it a great alternative to other paid solutions.

Written in C and C++ it is capable of being very fast and handling many requests per second. This makes it suitable for projects of all types and sizes.

In addition to this, MySQL becomes an important tool for many developers who have it for environment testing.

Let’s get to it.

Install MySQL on CentOS 9 Stream

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As expected, MySQL is present in the CentOS 9 Stream repositories. So, the process becomes simple.

First, open your terminal or connect via SSH and update the system

sudo dnf update

Then, you can install MySQL with the following command:

sudo dnf install mysql mysql-server
1.- Install MySQL on CentOS 9 Stream
1.- Install MySQL on CentOS 9 Stream
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Thereafter, check the installed version

mysql --version
mysql  Ver 8.0.28 for Linux on x86_64 (Source distribution)

Preparing MySQL for use

With MySQL installed, we need to do some configuration to get it up and running on the system. First, start the system service.

sudo systemctl start mysqld

Then you can make it start with the system

sudo systemctl enable mysqld

If you introduce changes to the MySQL configuration, then you have to restart it

sudo systemctl restart mysqld

Finally, check the status of the service.

sudo systemctl status mysqld
● mysqld.service - MySQL 8.0 database server
     Loaded: loaded (/usr/lib/systemd/system/mysqld.service; disabled; vendor preset: disabled)
     Active: active (running) since Sat 2022-05-21 15:25:43 UTC; 11s ago
    Process: 2573 ExecStartPre=/usr/libexec/mysql-check-socket (code=exited, status=0/SUCCESS)
    Process: 2595 ExecStartPre=/usr/libexec/mysql-prepare-db-dir mysqld.service (code=exited, status=0/SUCCESS)
   Main PID: 2672 (mysqld)
     Status: "Server is operational"
      Tasks: 38 (limit: 12036)
     Memory: 465.8M
        CPU: 5.272s
     CGroup: /system.slice/mysqld.service
             └─2672 /usr/libexec/mysqld --basedir=/usr

May 21 15:25:35 unixcop systemd[1]: Starting MySQL 8.0 database server...
May 21 15:25:35 unixcop mysql-prepare-db-dir[2595]: Initializing MySQL database
May 21 15:25:43 unixcop systemd[1]: Started MySQL 8.0 database server.

Now we have to configure it, for this we will use the command mysql_secure_installation.

sudo mysql_secure_installation

You will be prompted for a password, which must be blank. If you get an error when logging in, then you can show the temporary password with this command.

sudo grep 'temporary password' /var/log/mysqld.log

Once logged in, you can change the root password. You can also evaluate the strength of this password right there.

You will then be asked the following questions:

Remove anonymous users?
Disallow root login remotely? 
Remove test database and access to it?
Reload privilege tables now?

To each of them, you will have to answer Y.

And with this, you will be able to access the MySQL console

sudo mysql -u root -p
2.- MySQL ready for work
2.- MySQL ready for work

And we are ready to work.

Conclusion

The process of installing MySQL is something simple that we can do on our system without taking so much time. I hope you liked the process and the post as such.

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