在 debian 8 上安装 docker 错误

Question

当我想安装 docker 我得到了这个

N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate
N: Ignoring file 'backports.listy' in directory     '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'backports.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listyy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'docker.listy' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Package 'docker.io' has no installation candidate

Answer 1

首先，您的/etc/apt/sources.list.d/ 中有以下文件，文件扩展名组合为.listy 或.listyy。两者都是无效的，它们应该是.list 或者文件不应该在那里。

• backports.listy
• docker.listyy
• docker.listy
• backports.listy
• docker.listyy
• docker.listy

这些最初是从哪里来的，你有没有做过教程之类的？你能提供内容吗，所以我可以猜出你为什么会拥有它们。由于您似乎想从特定存储库中获取 docker，因此它们的名称。

第二个错误是E: Package 'docker.io' has no installation candidate，它想告诉你你的包管理器不知道这个包。如果您配置了存储库，请执行apt-get update。然后，您应该能够从这些中获取 docker。

另外，下次请格式化您的文本并给我们一些更具体的信息。例如'你实际运行了什么命令？'和'你以前做过什么，关于你的任务？（即创建listyy文件等）'