CentOS安装Docker报错文件冲突的解决方法

在CentOS环境下安装Docker的时候，总是报文件冲突的错误：

[root@iZ25qrs2oacZ ~]# yum -y install docker-io

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
-------------

执行如下命令：

[root@iZ25qrs2oacZ ~]# yum install lvm2 -y 

然后再执行安装命令：

[root@iZ25qrs2oacZ ~]# yum -y install docker-io

安装成功。看到统计信息：

Installed:
  docker.x86_64 0:1.10.3-46.el7.centos.14                                                                       

Dependency Installed:
  audit-libs-python.x86_64 0:2.4.1-5.el7                checkpolicy.x86_64 0:2.1.12-6.el7                      
  docker-common.x86_64 0:1.10.3-46.el7.centos.14        docker-selinux.x86_64 0:1.10.3-46.el7.centos.14        
  libcgroup.x86_64 0:0.41-8.el7                         libseccomp.x86_64 0:2.2.1-1.el7                        
  libsemanage-python.x86_64 0:2.1.10-18.el7             oci-register-machine.x86_64 1:0-1.8.gitaf6c129.el7     
  oci-systemd-hook.x86_64 1:0.1.4-4.git41491a3.el7      policycoreutils-python.x86_64 0:2.2.5-20.el7           
  python-IPy.noarch 0:0.75-6.el7                        setools-libs.x86_64 0:3.3.7-46.el7                     

Updated:
  dracut.x86_64 0:033-360.el7_2.1                     initscripts.x86_64 0:9.49.30-1.el7_2.3                    

Dependency Updated:
  audit.x86_64 0:2.4.1-5.el7                           audit-libs.x86_64 0:2.4.1-5.el7                          
  dracut-config-rescue.x86_64 0:033-360.el7_2.1        dracut-network.x86_64 0:033-360.el7_2.1                  
  kmod.x86_64 0:20-8.el7_2                             libgudev1.x86_64 0:219-19.el7_2.13                       
  libsemanage.x86_64 0:2.1.10-18.el7                   policycoreutils.x86_64 0:2.2.5-20.el7                    
  selinux-policy.noarch 0:3.13.1-60.el7_2.9            selinux-policy-targeted.noarch 0:3.13.1-60.el7_2.9       
  systemd.x86_64 0:219-19.el7_2.13                     systemd-libs.x86_64 0:219-19.el7_2.13                    
  systemd-python.x86_64 0:219-19.el7_2.13              systemd-sysv.x86_64 0:219-19.el7_2.13                    

Complete!
[root@iZ25qrs2oacZ ~]#