我一直在尝试在Ubuntu 14.04的Linode实例上安装docker。我到达最后一步并得到消息：E：无法找到包docker-ce
我已经按照许多不同网站中的这一系列步骤进行操作，但没有运气：
sudo apt-get remove docker docker-engine docker.io
sudo apt-get update
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
sudo apt-get update
sudo apt-get install docker-ce
这是我在运行apt-get update时看到的内容：
Ign http://us.archive.ubuntu.com trusty InRelease
Hit http://us.archive.ubuntu.com trusty-security InRelease
Hit http://us.archive.ubuntu.com trusty-updates InRelease
Hit http://us.archive.ubuntu.com trusty-backports InRelease
Hit http://us.archive.ubuntu.com trusty Release.gpg
Hit http://us.archive.ubuntu.com trusty-security/main Sources
Hit http://us.archive.ubuntu.com trusty-security/restricted Sources
Hit http://us.archive.ubuntu.com trusty-security/universe Sources
Hit http://us.archive.ubuntu.com trusty-security/multiverse Sources
Hit http://us.archive.ubuntu.com trusty-security/main i386 Packages
Hit http://us.archive.ubuntu.com trusty-security/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty-security/universe i386 Packages
Hit https://download.docker.com trusty InRelease
Hit http://us.archive.ubuntu.com trusty-security/multiverse i386 Packages
Hit https://download.docker.com trusty/stable amd64 Packages
Hit http://us.archive.ubuntu.com trusty-security/main Translation-en
Hit http://us.archive.ubuntu.com trusty-security/multiverse Translation-en
Get:1 https://download.docker.com trusty/stable Translation-en_US
Hit http://us.archive.ubuntu.com trusty-security/restricted Translation-en
Hit http://us.archive.ubuntu.com trusty-security/universe Translation-en
Hit http://us.archive.ubuntu.com trusty-updates/main Sources
Hit http://us.archive.ubuntu.com trusty-updates/restricted Sources
Hit http://us.archive.ubuntu.com trusty-updates/universe Sources
Hit http://us.archive.ubuntu.com trusty-updates/multiverse Sources
Hit http://us.archive.ubuntu.com trusty-updates/main i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/multiverse i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/main Translation-en
Hit http://us.archive.ubuntu.com trusty-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com trusty-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com trusty-updates/universe Translation-en
Ign https://download.docker.com trusty/stable Translation-en_US
Hit http://us.archive.ubuntu.com trusty-backports/main Sources
Hit http://us.archive.ubuntu.com trusty-backports/restricted Sources
Ign https://download.docker.com trusty/stable Translation-en
Hit http://us.archive.ubuntu.com trusty-backports/universe Sources
Hit http://us.archive.ubuntu.com trusty-backports/multiverse Sources
Hit http://us.archive.ubuntu.com trusty-backports/main i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/multiverse i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/main Translation-en
Hit http://us.archive.ubuntu.com trusty-backports/multiverse Translation-en
Hit http://us.archive.ubuntu.com trusty-backports/restricted Translation-en
Hit http://us.archive.ubuntu.com trusty-backports/universe Translation-en
Hit http://us.archive.ubuntu.com trusty Release
Hit http://us.archive.ubuntu.com trusty/main Sources
Hit http://us.archive.ubuntu.com trusty/restricted Sources
Hit http://us.archive.ubuntu.com trusty/universe Sources
Hit http://us.archive.ubuntu.com trusty/multiverse Sources
Hit http://us.archive.ubuntu.com trusty/main i386 Packages
Hit http://us.archive.ubuntu.com trusty/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty/multiverse i386 Packages
Hit http://us.archive.ubuntu.com trusty/main Translation-en
Hit http://us.archive.ubuntu.com trusty/multiverse Translation-en
Hit http://us.archive.ubuntu.com trusty/restricted Translation-en
Hit http://us.archive.ubuntu.com trusty/universe Translation-en
Ign http://us.archive.ubuntu.com trusty/main Translation-en_US
Ign http://us.archive.ubuntu.com trusty/multiverse Translation-en_US
Ign http://us.archive.ubuntu.com trusty/restricted Translation-en_US
Ign http://us.archive.ubuntu.com trusty/universe Translation-en_US
另外，这是/etc/apt/sources.list包含的内容：
###### Ubuntu Main Repos
deb http://us.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
###### Ubuntu Update Repos
deb http://us.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb [arch=amd64] https://download.docker.com/linux/ubuntu trusty stable
关于可能有什么不妥之处的任何建议？我在一个新的Ubuntu 16.04实例上运行了相同的命令集，并且Docker安装得很好。这个14.04实例有很多事情发生，所以我不倾向于从一个新的开始。
**您好，您可以尝试下载此页面上的.deb文件：
https://apt.dockerproject.org/repo/pool/testing/d/docker-engine/
然后使用以下命令安装它：
sudo dpkg -i /path/to/package.deb
要确保它已安装，只需键入：
sudo docker run hello-world
就是这样。希望它有效！