1）安裝依賴mysql
yum search libaio # 檢索相關信息sql
yum install libaio # 安裝依賴包bash
2）檢查 MySQL 是否已安裝server
yum list installed | grep mysqlrem
若是有，就先所有卸載，命令以下：get
yum -y remove mysql-libs.x86_64it
3)下載 MySQL Yum Repository(yum倉庫)io
地址爲 http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpmclass
執行下載下載
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
若是提示-bash: wget: 未找到命令，請先執行 yum install wget 安裝 wget
安裝
4）若是沒有wget下載對應的安裝包
wget --->yum -y install wget
5）添加 MySQL Yum Repository
添加 MySQL Yum Repository 到你的系統 repository 列表中，執行
yum localinstall mysql-community-release-el7-5.noarch.rpm
6）驗證下是否添加成功
yum repolist enabled | grep "mysql.*-community.*"
7）開始yum安裝mysql
yum install mysql-community-server
8）開啓
systemctl start mysqld
systemctl status mysqld 查看狀態
9）驗證 mysql
按照步驟來就能安裝成功了