Ubuntu(14.04)软件源安装
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   | $ sudo apt-get update $ sudo apt-get install -y docker.io $ sudo ln -sf /usr/bin/docker.io /usr/local/bin/docker $ sudo sed -i '$acomplete -F _docker docker' /
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CentOS6
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   | $ sudo yum install -y http://mirrors.yun-idc.com/epel/6/i386/epel-release-6-8.noarch.rpm $ sudo yum install -y docker-io
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CentOS7
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   | $ sudo yum install -y docker
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Docker官方源安装最新版本
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   | # add the new gpg key $ apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
  # edit your /etc/apt/sources.list.d/docker.list $ vim /etc/apt/sources.list.d/docker.list
  # remove the contents and replace with the following depending on your os and version:
  # Debian Wheezy deb https://apt.dockerproject.org/repo debian-wheezy main
  # Debian Jessie deb https://apt.dockerproject.org/repo debian-jessie main
  # Debian Stretch/Sid deb https://apt.dockerproject.org/repo debian-stretch main
  # Ubuntu Precise deb https://apt.dockerproject.org/repo ubuntu-precise main
  # Ubuntu Trusty deb https://apt.dockerproject.org/repo ubuntu-trusty main
  # Ubuntu Utopic deb https://apt.dockerproject.org/repo ubuntu-utopic main
  # Ubuntu Vivid deb https://apt.dockerproject.org/repo ubuntu-vivid main
  # Ubuntu Wily deb https://apt.dockerproject.org/repo ubuntu-wily main After your source file is updated run the following:
  $ apt-get update   # remove the old  $ apt-get purge lxc-docker*    # install the new  $ apt-get install docker-engine
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参考资料
New Apt and Yum Repos