How To Install MySQL 8.0 on CentOS 7/6

MySQL 8 is the latest version available for the installation. MySQL is the most popular database server for Linux systems, it also supports a large number of platforms. This tutorial will help you to Install MySQL Server 8.0 Community Edition on CentOS/RHEL 7/6 LInux using the package manager.

Step 1 – Setup Yum Repository

First, you need to enable MySQL yum repository in your system provided by MySQL. Execute one of the below commands as per your operating system version.

### On CentOS/RHEL 7 system ###
rpm -Uvh https://repo.mysql.com/mysql80-community-release-el7-3.noarch.rpm

### On CentOS/RHEL 6 system ###
rpm -Uvh https://repo.mysql.com/mysql80-community-release-el6-3.noarch.rpm

Step 2 – Install MySQL Community Server

The MySQL yum repository contains multiple repositories configuration for multiple MySQL versions. So first disable all repositories in mysql repo file.

sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/mysql-community.repo

Then execute one of the followings commands as per your operating system to install MySQL.

yum --enablerepo=mysql80-community install mysql-community-server  ## CentOS & RedHat 
dnf --enablerepo=mysql80-community install mysql-community-server  ## Fedora Systems 

Step 3 – Start MySQL Service

Start the MySQL server using the following command from the Linux terminal.

Using SysVinit

service mysqld start

Using Systemd

systemctl start mysqld.service

Step 4 – Find default root Password

With the installation of MySQL 8.0, a temporary password is created for the MySQL root user. You can find the temporary password generated in log files.

grep "A temporary password" /var/log/mysqld.log

Output:

[Note] [MY-010454] [Server] A temporary password is generated for [email protected]: VWa>Bo9xFUrs

Step 5 – MySQL Post Install Setup

After installing MySQL first time, execute mysql_secure_installation command to secure MySQL server. It will prompt for few question’s, we recommended to say yes ( y ) for each.

mysql_secure_installation

Enter password for user root:

The existing password for the user account root has expired. Please set a new password.

New password:
Re-enter new password:

Change the password for root ? ((Press y|Y for Yes, any other key for No) : n

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y

Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y

Step 6 – Restart and Enable MySQL Service

The MySQL installation has been successfully completed. Now restart the service and set up autostart on system bootup.

### Using SysVinit
service mysqld restart
chkconfig mysqld on

### Using Systemd
systemctl restart mysqld.service
systemctl enable mysqld.service

Step 7 – Working with MySQL

Now connect mysql database server Linux shell using below command. It will prompt for the password for authentication. On successful login, you will get the MySQL command prompt, where we can execute SQL queries.

mysql -h localhost -u root -p

After login, You can use the following commands to create a new database, create a user and assign privileges to the user on the database. Change values as per your requirements.

### CREATE DATABASE mysql> CREATE DATABASE mydb; ### CREATE USER ACCOUNT mysql> CREATE USER 'dbuser'@'192.168.10.101' IDENTIFIED BY 'secret'; ### GRANT PERMISSIONS ON DATABASE mysql> GRANT ALL ON mydb.* TO 'dbuser'@'192.168.10.101'; ### RELOAD PRIVILEGES mysql> FLUSH PRIVILEGES;1234567891011### CREATE DATABASEmysql> CREATE DATABASE mydb; ### CREATE USER ACCOUNTmysql> CREATE USER 'dbuser'@'192.168.10.101' IDENTIFIED BY 'secret'; ### GRANT PERMISSIONS ON DATABASEmysql> GRANT ALL ON mydb.* TO 'dbuser'@'192.168.10.101'; ###  RELOAD PRIVILEGESmysql> FLUSH PRIVILEGES;

Congratulations! you have successfully installed MySQL server on your system. Use below quick links for basic MySQL tasks.