Centos7下最小安装，结果好多命令都 用没了，想装个mysql-server，结果遇到没用可用包，百度下了，找到以下解决方法，与大家一同分享。
解决办法其它很简单，先到mysql官网下载最新的安装源包进行安装，然后检查下，最后重复直接执行安装命令即可。
- # wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
-- http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
正在解析主机 repo.mysql.com (repo.mysql.com)... 23.4.241.142
正在连接 repo.mysql.com (repo.mysql.com)|23.4.241.142|:80... 已连接。已发出 HTTP 请求，正在等待回应... 200 OK
长度：6140 (6.0K) [application/x-redhat-package-manager]
正在保存至: “mysql-community-release-el7-5.noarch.rpm”
100%[======================================>] 6,140 --.-K/s 用时 0s
(467 MB/s) - 已保存 “mysql-community-release-el7-5.noarch.rpm” [6140/6140])
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- # ls
mysql-community-release-el7-5.noarch.rpm
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- # rpm -ivh mysql-community-release-el7-5.noarch.rpm
正在升级/安装...
1:mysql-community-release-el7-5 ################################# [100%]
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- # ls -1 /etc/yum.repos.d/mysql-community*
/etc/yum.repos.d/mysql-community-source.repo
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- # yum install mysql-server
