我尝试在ubuntu 14.04上安装docker。安装后，我遇到了一些问题，您可以在这里阅读它们:
docker installation issue file not found after installation
现在安装已完成，但是当我运行docker ps -a时出现此错误:Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
我以为没问题，我开始了。所以我跑了/etc/init.d/docker start
没有改变。在这种情况下有什么问题？
提前致谢
更新
Docker锁定sais
time="2019-01-15T16:04:48.442161704Z" level=error msg="'overlay' not found as a supported filesystem on this host. Please ensure kernel is new enough and has overlay support loaded." storage-driver=overlay2
time="2019-01-15T16:04:48.443237115Z" level=error msg="AUFS was not found in /proc/filesystems" storage-driver=aufs
time="2019-01-15T16:04:48.444209277Z" level=error msg="'overlay' not found as a supported filesystem on this host. Please ensure kernel is new enough and has overlay support loaded." storage-driver=overlay
time="2019-01-15T16:04:48.448467742Z" level=info msg="Graph migration to content-addressability took 0.00 seconds"
time="2019-01-15T16:04:48.451222266Z" level=warning msg="Your kernel does not support oom control"
time="2019-01-15T16:04:48.451238804Z" level=warning msg="Your kernel does not support memory swappiness"
time="2019-01-15T16:04:48.451249423Z" level=warning msg="Your kernel does not support kernel memory limit"
time="2019-01-15T16:04:48.451255189Z" level=warning msg="Unable to find cpu cgroup in mounts"
time="2019-01-15T16:04:48.451287772Z" level=warning msg="Unable to find cpuset cgroup in mounts"
time="2019-01-15T16:04:48.451337670Z" level=warning msg="mountpoint for pids not found"
Error starting daemon: Devices cgroup isn't mounted
最佳答案
3.13是一个相当老的内核。安装最新的稳定的标准内核(3.19版的内核已支持overlay FS)。主要阻止者是cgroup问题。 Cgroup必须可用。
其他有用的提示:error starting docker daemon on ubuntu 14.04 (Devices cgroup isn't mounted)
关于docker - 全新安装后无法连接到Docker守护程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54211734/