问题一[root@lsN4FrHvLd mysql]# yum install mysql-community-server
Repository extras is listed more than once in the configuration
Last metadata expiration check: 0:15:07 ago on Mon 18 Jul 2022 08:32:24 AM CST.
No match for argument: mysql-community-server
Error: Unable to find a match: mysql-community-server
 

今天使用centos8.5安装MySQL出现如上错误

显示

参数不匹配：mysql community server

错误：无法找到匹配项：mysql community server

解决办法，第一步查看是否安装MySQL源

检查mysql源是否安装成功

yum repolist enabled | grep "mysql.*.community.*"

 如看到没有

请.安装mysql源在进行安装

yum localinstall mysql57-community-release-el7-8.noarch.rpm

再进行安装MySQL

yum install mysql-community-server

若看到已安装MySQL源，

问题二[root@lsN4FrHvLd mysql]# yum install -y mysql-community-server
Repository epel is listed more than once in the configuration
Last metadata expiration check: 0:05:17 ago on Tue 24 Aug 2021 11:17:14 AM CST.
All matches were filtered out by modular filtering for argument: mysql-community-server
Error: Unable to find a match: mysql-community-server

解决方法：
先执行：yum module disable mysql
再执行：yum -y install mysql-community-server