1.rpm -Uvh http://dev./get/mysql-community-release-el6-5. #下载
install yum-utils -y #装源
3.yum-config-manager --disable mysql56-community # 禁用MySQL5.6的源
4.yum-config-manager --enable mysql57-community-dmr # 启用MySQL5.7的源
repolist enabled | grep mysql
6.yum install mysql-community-server #安装mysql
到这里时有些会报一下错
错误显示：
软件包：mysql-community-server-5.7.20-1.el6.x86_64 (mysql57-community)
需要：.2()(64bit)
您可以尝试添加 --skip-broken 选项来解决该问题
您可以尝试执行：rpm -Va --nofiles --nodigest
解决方法：
修改vim /etc// 源文件
[mysql57-community]
name=MySQL 5.7 Community Server
## baseurl=/yum/mysql-5.7-community/el/6/$basearch/
baseurl=/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
install mysql-community-server #再次安装mysql
start mysqld #启动mysql
status mysqld #查看mysql启动状态