如何卸载docker-engine？

Question

我已经安装了docker

curl -sSL https://get.docker.com/ | sh

当我尝试卸载软件包时,我遇到以下错误

$ sudo apt-get remove docker-engine
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  docker-engine
0 upgraded, 0 newly installed, 1 to remove and 5 not upgraded.
1 not fully installed or removed.
After this operation, 28.5 MB disk space will be freed.
Do you want to continue? [Y/n] Y
(Reading database ... 454135 files and directories currently installed.)
Removing docker-engine (1.8.2-0~vivid) ...
Failed to stop docker.service: Unit docker.service not loaded.
invoke-rc.d: initscript docker, action "stop" failed.
dpkg: error processing package docker-engine (--remove):
 subprocess installed pre-removal script returned error exit status 5
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 docker-engine
E: Sub-process /usr/bin/dpkg returned an error code (1)

我如何卸载docker包？

我正在使用Ubuntu 15.04.

Answer 1

试试吧

sudo mv /var/lib/dpkg/info/{packagename}.* /tmp/
sudo dpkg --remove --force-remove-reinstreq {packagename}
sudo apt-get remove {packagename}
sudo apt-get autoremove && sudo apt-get autoclean

Answer 2

我有同样的问题,但在Ubuntu 14.04.我解决这个问题的方法是:

首先删除坏链接:

sudo mv /var/lib/dpkg/info/{packagename}.* /tmp/
sudo apt-get remove {packagename}

所以现在你可以再次安装它:

sudo apt-get install docker-engine

就这样.

Answer 3

看起来不像是 Docker 特定的问题，而是一般的安装问题。

docker 是否曾经在该机器上工作过（例如：安装成功了吗？）

我会开始调查Failed to stop docker.service: Unit docker.service not loaded，看看这是否能带来更多关于问题所在的见解。似乎无法停止服务。

您可能需要阅读一些有关 systemd 的内容，我推荐此页面。journalctl可能也有帮助，请参阅此处。

进而：

• docker.service 存在吗？
• 可以加载吗？
• 它的现状如何？
• 如果你启动它，它会说什么？
• 停下来？

ps：不太喜欢全自动安装脚本。我不明白有什么问题apt-get install docker-engine...