centos 7 安装docker 报错提示Error Summary 解决方法

今天，将一台win重装成为Centos7系统

在安装docker是，提示我

Transaction check error:
  file /usr/lib/systemd/system/blk-availability.service from install of device-mapper-7:1.02.107-5.el7_2.5.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
  file /usr/sbin/blkdeactivate from install of device-mapper-7:1.02.107-5.el7_2.5.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64
  file /usr/share/man/man8/blkdeactivate.8.gz from install of device-mapper-7:1.02.107-5.el7_2.5.x86_64 conflicts with file from package lvm2-7:2.02.105-14.el7.x86_64

Error Summary
-------------

以上错误，

在通过错误信息发现 lvm2未安装

执行安装

yum install -y lvm2

在安装docker 即可

yum install -y docker