[root@localhost ~]# rpm -ivh MySQL-server-5.6.20-1.el7.x86_64.rpm 
准备中...      ################################# [100%]
file /usr/share/mysql/charsets/README from install of MySQL-server-5.6.20-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.35-3.el7.x86_64
file /usr/share/mysql/czech/errmsg.sys from install of MySQL-server-5.6.20-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.35-3.el7.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of MySQL-server-5.6.20-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.35-3.el7.x86_64

安装的时候出现这样的东西然后就退出了。查看安装结果，mysql-server安装失败。

其实很简单的，后面下面linux智能的给出了。我提示。“conflicts” 翻译过来的就是，”冲突“。

解决办法就很简单啦。

yum -y remove  mariadb-libs-1:5.5.35-3.el7.x86_64

卸载就可以啦。完成。。。