centos8 install MySQL 8.0.x with yum

Table of contents

Step One: Add the MySQL Yum Repository

Step 2: Use yumyum makecache to download the package information of the server to the local computer and cache it

Step 3: Install mysql

 The fourth step is to start mysql and set it to boot

Step five, change the password

Step 6, Linux login and local login test

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Step One: Add the MySQL Yum Repository

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

Step 2: Use yumyum makecache to download the package information of the server to the local computer and cache it

yum makecache

Step 3: Install mysql

sudo yum -y install mysql-community-server

Successful installation! ! ! !

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 The fourth step is to start mysql and set it to boot

 Execute it first, and then execute the next step after the startup is successful. Set it to boot

systemctl start mysqld   

Set boot

 systemctl enable mysqld

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Step five, change the password

 First check the default generated password, the default password is the last output root@localhost: everything behind

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

 Log in, and then the password is the one above that is automatically generated

mysql -uroot -p

 Then the next step is to change the password, step by step

mysql>set global validate_password.policy=0;
mysql>set global validate_password.length=4;


mysql>ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password By 'newPassword'; # 修改密码
mysql>flush privileges;
mysql>update mysql.user set host = '%',plugin='mysql_native_password' where user = 'root'; # 全部主机都能访问
mysql>flush privileges;
mysql>exit;

 #Note that the initialized password must conform to the length, and must contain numbers, lowercase or uppercase letters, and special characters.
If the following two errors are reported: ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
Run the following command first.

mysql>ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password By 'Huhjkha1@';

Step 6, Linux login and local login test

Linux login