linux yum install mysql

Linux, as an excellent operating system, not only supports the installation of a variety of services and applications, but also provides a wealth of software package management tools. This article mainly introduces how to use Yum (Yellowdog Updater, Modified) to install the Mysql database in a Linux system.

Yum Tool Introduction

Yum is a package management tool that can install, update and delete software packages in Linux systems. It is an important part of Linux systems. Yum supports package dependency analysis, automatic dependency resolution, reliable vulnerability patching, and easy package downloading.

Introduction to Mysql

Mysql is a software used for database management. It is an open source relational database management system and is generally used for the development of Web applications. Because it is free, powerful, and scalable, Mysql is highly used in the backend of web applications and is one of the most popular databases in the world.

Yum installation Mysql

The following describes how to install Mysql through Yum in a Linux system:

Step 1: Check the operating system version

Installing Mysql Before doing this, you need to check the version information of the operating system. We use the following command to check the operating system version:

cat /etc/redhat-release

If the output is "CentOS Linux release 7.9.2009 (Core)", it means the operating system version is CentOS 7.9.2009.

Step 2: Install Mysql

Before installing Mysql, you need to install the EPEL warehouse first. Execute the following command to install:

yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

Then execute the following command to import the official yum source of mysql and install it:

rpm -Uhv https://repo.mysql.com/mysql80-community-release-el7-3.noarch.rpm
yum -y install mysql-community-server

Step 3: Start the Mysql service

After the installation is completed, Enter the following command in the terminal to start the Mysql service:

systemctl start mysqld.service

However, in the CentOS 7 system, after installing the new version of mysql, because you need to use the mysql password to log in to the database, we need to use the following command to obtain the default mysql root login. Password:

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

Step 4: Modify Mysql root password

After obtaining the Mysql root password, you need to log in and change the password. Use the following command to log in:

mysql -uroot -p

Then enter the mysql initial password to log in.

After logging in, we can use the following command to modify the password of Mysql root:

ALTER USER 'root'@'localhost' IDENTIFIED BY 'newpassword';

Replace "newpassword" with the password you want to set. After the setting is completed, you can verify it with the following command:

mysql -u root -p

Enter the modified password. Successful login means that Mysql installation, startup and configuration have been completed.

Summary

The yum package management tool of the Linux system can easily install, update and delete software packages. As a widely used web application database, Mysql is more convenient to install through yum. Convenient. Through the above steps, you can use Yum to install the Mysql database in a Linux system, and successfully start, configure and verify it.

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