CentOS7.0安装Docker

运行yum命令：

#yum install docker

如果安装过程中遇到如下错误：

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

错误概要

则运行如下命令(不要问我为什么，我也不知道)：

yum install lvm2 docker-io -y

启动Docker服务：

systemctl start docker.servicesystemctl enable docker.service

查看Docker版本号：

docker version

Docker0虚拟网桥：