最近，我的系统更新管理器在下载存储库信息时没有任何错误。以前我遇到这个问题时，总是存储库损坏。不过，现在对我来说似乎损坏的似乎是 security.ubuntu 和/或 archive.ubuntu 和/或任何其他存储库。这迫使更新管理器继续通知我：“软件包信息在 17 天前更新”。我尝试了许多其他类似问题中建议的多种方法，但它们似乎都指向一个坏的存储库。
使用 sudo apt-get update 会出现同样的错误，尽管出现问题的存储库数量不一致。
我甚至尝试取消选中软件管理器中的所有其他软件，但仍然出现此错误。我还尝试了多个不同的存储库服务器，包括主服务器和推荐的“最佳”服务器。我不太确定是什么导致了这个问题，任何帮助都会有用。以下是我的一些输出：
sudo apt-get update
Hit http://repo.steampowered.com precise Release.gpg
Hit http://repo.steampowered.com precise Release
Hit http://repo.steampowered.com precise/steam amd64 Packages
Hit http://repo.steampowered.com precise/steam i386 Packages
Ign http://repo.steampowered.com precise/steam TranslationIndex
Ign http://repo.steampowered.com precise/steam Translation-en_CA
Ign http://repo.steampowered.com precise/steam Translation-en
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://extras.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise/main amd64 Packages
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Ign http://extras.ubuntu.com precise/main Translation-en_CA
Ign http://extras.ubuntu.com precise/main Translation-en
Hit http://archive.canonical.com precise Release.gpg
Hit http://archive.canonical.com precise Release
Hit http://archive.canonical.com precise/partner amd64 Packages
Hit http://archive.canonical.com precise/partner i386 Packages
Ign http://archive.canonical.com precise/partner TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-en_CA
Ign http://archive.canonical.com precise/partner Translation-en
Get:1 http://security.ubuntu.com precise-security Release.gpg [198 B]
Hit http://security.ubuntu.com precise-security Release
Hit http://security.ubuntu.com precise-security/main amd64 Packages
Hit http://security.ubuntu.com precise-security/universe amd64 Packages
Hit http://security.ubuntu.com precise-security/multiverse amd64 Packages
Hit http://security.ubuntu.com precise-security/restricted amd64 Packages
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://security.ubuntu.com precise-security/universe i386 Packages
Hit http://security.ubuntu.com precise-security/multiverse i386 Packages
Hit http://security.ubuntu.com precise-security/restricted i386 Packages
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Err http://ca.archive.ubuntu.com precise Release.gpg
Something wicked happened resolving 'ca.archive.ubuntu.com:http' (-5 - No address associated with hostname)
Hit http://ca.archive.ubuntu.com precise-updates Release.gpg
Hit http://ca.archive.ubuntu.com precise Release
Hit http://ca.archive.ubuntu.com precise-updates Release
Ign http://ca.archive.ubuntu.com precise/main amd64 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/universe amd64 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/multiverse amd64 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/restricted amd64 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/main i386 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/universe i386 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/multiverse i386 Packages/DiffIndex
Ign http://ca.archive.ubuntu.com precise/restricted i386 Packages/DiffIndex
Hit http://ca.archive.ubuntu.com precise/main TranslationIndex
Hit http://ca.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://ca.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://ca.archive.ubuntu.com precise/universe TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/main amd64 Packages
Hit http://ca.archive.ubuntu.com precise-updates/universe amd64 Packages
Hit http://ca.archive.ubuntu.com precise-updates/multiverse amd64 Packages
Hit http://ca.archive.ubuntu.com precise-updates/restricted amd64 Packages
Hit http://ca.archive.ubuntu.com precise-updates/main i386 Packages
Hit http://ca.archive.ubuntu.com precise-updates/universe i386 Packages
Hit http://ca.archive.ubuntu.com precise-updates/multiverse i386 Packages
Hit http://ca.archive.ubuntu.com precise-updates/restricted i386 Packages
Hit http://ca.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://ca.archive.ubuntu.com precise/main amd64 Packages
Hit http://ca.archive.ubuntu.com precise/universe amd64 Packages
Hit http://ca.archive.ubuntu.com precise/multiverse amd64 Packages
Hit http://ca.archive.ubuntu.com precise/restricted amd64 Packages
Hit http://ca.archive.ubuntu.com precise/main i386 Packages
Hit http://ca.archive.ubuntu.com precise/universe i386 Packages
Hit http://ca.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://ca.archive.ubuntu.com precise/restricted i386 Packages
Hit http://ca.archive.ubuntu.com precise/main Translation-en_CA
Hit http://ca.archive.ubuntu.com precise/main Translation-en
Hit http://ca.archive.ubuntu.com precise/multiverse Translation-en
Hit http://ca.archive.ubuntu.com precise/restricted Translation-en
Hit http://ca.archive.ubuntu.com precise/universe Translation-en_CA
Hit http://ca.archive.ubuntu.com precise/universe Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/main Translation-en_CA
Hit http://ca.archive.ubuntu.com precise-updates/main Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/universe Translation-en_CA
Hit http://ca.archive.ubuntu.com precise-updates/universe Translation-en
Fetched 198 B in 20s (9 B/s)
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg Something wicked happened resolving 'ca.archive.ubuntu.com:http' (-5 - No address associated with hostname)
E: Some index files failed to download. They have been ignored, or old ones used instead.
如果我再次运行相同的命令，我会得到一个不同的坏存储库，例如：
sudo apt-get update
Get:1 http://ca.archive.ubuntu.com precise Release.gpg [198 B]
Get:2 http://ca.archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://ca.archive.ubuntu.com precise Release
Get:3 http://ca.archive.ubuntu.com precise-updates Release [49.6 kB]
Hit http://ca.archive.ubuntu.com precise/main amd64 Packages
Hit http://ca.archive.ubuntu.com precise/universe amd64 Packages
Hit http://ca.archive.ubuntu.com precise/multiverse amd64 Packages
Hit http://ca.archive.ubuntu.com precise/restricted amd64 Packages
Hit http://ca.archive.ubuntu.com precise/main i386 Packages
Hit http://ca.archive.ubuntu.com precise/universe i386 Packages
Hit http://ca.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://ca.archive.ubuntu.com precise/restricted i386 Packages
Hit http://ca.archive.ubuntu.com precise/main TranslationIndex
Hit http://ca.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://ca.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://ca.archive.ubuntu.com precise/universe TranslationIndex
Get:4 http://ca.archive.ubuntu.com precise-updates/main amd64 Packages [663 kB]
Get:5 http://ca.archive.ubuntu.com precise-updates/universe amd64 Packages [210 kB]
Get:6 http://ca.archive.ubuntu.com precise-updates/multiverse amd64 Packages [13.6 kB]
Get:7 http://ca.archive.ubuntu.com precise-updates/restricted amd64 Packages [10.1 kB]
Get:8 http://ca.archive.ubuntu.com precise-updates/main i386 Packages [683 kB]
Get:9 http://ca.archive.ubuntu.com precise-updates/universe i386 Packages [214 kB]
Get:10 http://ca.archive.ubuntu.com precise-updates/multiverse i386 Packages [13.8 kB]
Get:11 http://ca.archive.ubuntu.com precise-updates/restricted i386 Packages [10.0 kB]
Hit http://ca.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://ca.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://ca.archive.ubuntu.com precise/main Translation-en_CA
Hit http://ca.archive.ubuntu.com precise/main Translation-en
Hit http://ca.archive.ubuntu.com precise/multiverse Translation-en
Hit http://ca.archive.ubuntu.com precise/restricted Translation-en
Hit http://ca.archive.ubuntu.com precise/universe Translation-en_CA
Hit http://ca.archive.ubuntu.com precise/universe Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/main Translation-en_CA
Hit http://ca.archive.ubuntu.com precise-updates/main Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://ca.archive.ubuntu.com precise-updates/universe Translation-en_CA
Hit http://ca.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://archive.canonical.com precise Release.gpg
Hit http://archive.canonical.com precise Release
Hit http://archive.canonical.com precise/partner amd64 Packages
Hit http://archive.canonical.com precise/partner i386 Packages
Ign http://archive.canonical.com precise/partner TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-en_CA
Ign http://archive.canonical.com precise/partner Translation-en
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://extras.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise/main amd64 Packages
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Ign http://extras.ubuntu.com precise/main Translation-en_CA
Ign http://extras.ubuntu.com precise/main Translation-en
Get:12 http://security.ubuntu.com precise-security Release.gpg [198 B]
Get:13 http://security.ubuntu.com precise-security Release [49.6 kB]
Get:14 http://security.ubuntu.com precise-security/main amd64 Packages [296 kB]
Get:15 http://security.ubuntu.com precise-security/universe amd64 Packages [79.8 kB]
Get:16 http://security.ubuntu.com precise-security/multiverse amd64 Packages [2,186 B]
Get:17 http://security.ubuntu.com precise-security/restricted amd64 Packages [4,627 B]
Get:18 http://security.ubuntu.com precise-security/main i386 Packages [311 kB]
Get:19 http://security.ubuntu.com precise-security/universe i386 Packages [82.5 kB]
Get:20 http://security.ubuntu.com precise-security/multiverse i386 Packages [2,371 B]
Get:21 http://security.ubuntu.com precise-security/restricted i386 Packages [4,620 B]
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://security.ubuntu.com precise-security/universe Translation-en
Err http://repo.steampowered.com precise Release.gpg
Something wicked happened resolving 'repo.steampowered.com:http' (-5 - No address associated with hostname)
Hit http://repo.steampowered.com precise Release
Ign http://repo.steampowered.com precise/steam amd64 Packages/DiffIndex
Ign http://repo.steampowered.com precise/steam i386 Packages/DiffIndex
Ign http://repo.steampowered.com precise/steam TranslationIndex
Hit http://repo.steampowered.com precise/steam amd64 Packages
Hit http://repo.steampowered.com precise/steam i386 Packages
Ign http://repo.steampowered.com precise/steam Translation-en_CA
Ign http://repo.steampowered.com precise/steam Translation-en
Fetched 2,701 kB in 21s (124 kB/s)
W: Failed to fetch http://repo.steampowered.com/steam/dists/precise/Release.gpg Something wicked happened resolving 'repo.steampowered.com:http' (-5 - No address associated with hostname)
E: Some index files failed to download. They have been ignored, or old ones used instead.
关于我需要开始研究什么问题，有什么建议吗？
答案1
我想到了！
从此处的链接下载文件：“http://packages.ubuntu.com/precise/amd64/apt-transport-https/download“
单击网页上标有“security.ubuntu.com/ubuntu”的链接（应该下载文件）
然后，使用“GDebi 包安装程序”安装该文件。
答案2
从表面上看，你的 repo 很糟糕。
我跟着它到了这个网站：http://repo.steampowered.com/steam/dists/precise/其中包含一个有 64 位版本和 32 位版本的 steam 文件夹。
要修复此问题，您可以从源列表中删除 repo 或查看此文件夹内的版本是否有效。
位于：/etc/apt/sources.list 但请小心。这可能会损坏您的系统。您必须使用 gedit/kate/vi 在 root 中编辑此文件。
不久前我添加了一个蒸汽朋克主题，但他们没有 64 位软件包，因此我遇到了这些错误。因此，我删除了包含有问题的 repo 的单个文件。