1、下載并安裝MySQL官方的 Yum Repository

[root@node1 ~]# wget -c https://dev.mysql.com/get/mysql80-community-release-el7-5.noarch.rpm

2、添加 MySQL Yum Repository

[root@node1 ~]# yum localinstall mysql80-community-release-el7-5.noarch.rpm -y

3、選擇安裝發行版

前提: 安裝YUM?

[root@node1 ~]# yum-config-manager --disable mysql80-community ? #禁用8.0
[root@node1 ~]# yum-config-manager --enable mysql57-community ? ?#啟用5.7

驗證

[root@node1 ~]# yum repolist enabled | grep -i ^mysql
mysql-connectors-community/x86_64 ? ? ? MySQL Connectors Community ? ? ? ? ? 230
mysql-tools-community/x86_64 ? ? ? ? ? ?MySQL Tools Community ? ? ? ? ? ? ? ?138
mysql57-community/x86_64 ? ? ? ? ? ? ? ?MySQL 5.7 Community Server ? ? ? ? ? 564

4、在線安裝

[root@node1 ~]# yum install -y mysql-community-server

5、啟動數據庫

[root@node1 ~]# systemctl enable --now mysqld

6、登陸

[root@node1 ~]# tmp_pwd=`awk '/temporary password/ {print $NF}' /var/log/mysqld.log`
[root@node1 ~]# mysql -uroot -p$tmp_pwd
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. ?Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.7.37 MySQL Community Server (GPL)

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