CentOS7.9使用rpm方式安装mysql8.0.26

1.安装环境
系统：CentOS Linux7.9
[root@oldboy opt]# cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)
 
数据库：mysql8.0.26
 
#1)关闭selinux:
setenforce 0
getenforce
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
 
 
2.下载mysql软件包
注意：下载地址为https://mirrors.aliyun.com/mysql/MySQL-8.0/
cd /opt
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-client-8.0.26-1.el7.x86_64.rpm
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-devel-8.0.26-1.el7.x86_64.rpm
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-client-plugins-8.0.26-1.el7.x86_64.rpm 
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-libs-8.0.26-1.el7.x86_64.rpm
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-common-8.0.26-1.el7.x86_64.rpm
wget https://mirrors.aliyun.com/mysql/MySQL-8.0/mysql-community-server-8.0.26-1.el7.x86_64.rpm
 
[root@oldboy opt]# ls
mysql-community-client-8.0.26-1.el7.x86_64.rpm         
mysql-community-devel-8.0.26-1.el7.x86_64.rpm
mysql-community-client-plugins-8.0.26-1.el7.x86_64.rpm 
mysql-community-libs-8.0.26-1.el7.x86_64.rpm
mysql-community-common-8.0.26-1.el7.x86_64.rpm         
mysql-community-server-8.0.26-1.el7.x86_64.rpm
 
注意：安装mysql-community-server前，需要先安装下面依赖包：
mysql-community-client        
mysql-community-client-plugins
mysql-community-common        
mysql-community-libs          
net-tools                     
 
 
 
3.删除已有的mariadb，防止和mysql冲突
[root@oldboy opt]# rpm -qa|grep mariadb
mariadb-libs-5.5.68-1.el7.x86_64
[root@oldboy opt]# yum remove mariadb-libs -y
 
4.按顺序安装如下软件包（有依赖关系，切记顺序不能乱）
[root@oldboy opt]# yum install net-tools libaio-devel -y
[root@oldboy opt]# rpm -ivh mysql-community-common-8.0.26-1.el7.x86_64.rpm
[root@oldboy opt]# rpm -ivh mysql-community-client-plugins-8.0.26-1.el7.x86_64.rpm
[root@oldboy opt]# rpm -ivh mysql-community-libs-8.0.26-1.el7.x86_64.rpm
[root@oldboy opt]# rpm -ivh mysql-community-client-8.0.26-1.el7.x86_64.rpm
[root@oldboy opt]# rpm -ivh mysql-community-server-8.0.26-1.el7.x86_64.rpm
 
[root@oldboy opt]# rpm -qa|grep mysql
mysql-community-client-8.0.26-1.el7.x86_64
mysql-community-common-8.0.26-1.el7.x86_64
mysql-community-libs-8.0.26-1.el7.x86_64
mysql-community-client-plugins-8.0.26-1.el7.x86_64
mysql-community-server-8.0.26-1.el7.x86_64
 
5.初始化，并启动MySQL
[root@oldboy opt]# mysqld --initialize-insecure --user=mysql
[root@oldboy opt]# systemctl start mysqld
[root@oldboy opt]# netstat -lntup|grep 330
tcp6       0      0 :::33060                :::*                    LISTEN      17874/mysqld       
tcp6       0      0 :::3306                 :::*                    LISTEN      17874/mysqld
 
6.启动并检查端口存在后，则输入mysql登录查看。
[root@oldboy opt]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.26 MySQL Community Server - GPL
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database oldboy;
Query OK, 1 row affected (0.00 sec)
 
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| oldboy             |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.01 sec)
 
mysql> quit
over，成功。