sudo apt-get update sudo apt-get install apt-transport-https ca-certificates sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D sudo vi /etc/apt/sources.list.d/docker.list cd /etc/apt/ ls cd sources.list.d/ ls sudo vi /etc/apt/sources.list.d/docker.list cd /home ls cd si84/ sudo apt-get update sudo apt-get purge lxc-docker apt-cache policy docker-engine sudo apt-get install linux-image-extra-$(uname -r) sudo apt-get update sudo apt-get install docker-engine sudo service docker start