这是命令的输出sudo apt-get update。我也无法使用更新管理器更新任何软件包。那么问题是什么？我该如何修复它？
Ign http://security.ubuntu.com precise-security InRelease
Ign http://archive.canonical.com precise InRelease
Ign http://de.archive.ubuntu.com precise InRelease
Ign http://de.archive.ubuntu.com precise-updates InRelease
Ign http://extras.ubuntu.com precise InRelease
Hit http://security.ubuntu.com precise-security Release.gpg
Hit http://archive.canonical.com precise Release.gpg
Ign http://dl.google.com stable InRelease
Ign http://ppa.launchpad.net precise InRelease
Hit http://de.archive.ubuntu.com precise Release.gpg
Hit http://security.ubuntu.com precise-security Release
Hit http://archive.canonical.com precise Release
Hit http://extras.ubuntu.com precise Release.gpg
Get:1 http://dl.google.com stable Release.gpg [198 B]
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://de.archive.ubuntu.com precise-updates Release.gpg
Hit http://extras.ubuntu.com precise Release
Hit http://security.ubuntu.com precise-security/main Sources
Get:2 http://dl.google.com stable Release
Hit http://archive.canonical.com precise/partner i386 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://de.archive.ubuntu.com precise Release
Hit http://extras.ubuntu.com precise/main Sources
Hit http://security.ubuntu.com precise-security/restricted Sources
Hit http://security.ubuntu.com precise-security/universe Sources
Hit http://security.ubuntu.com precise-security/multiverse Sources
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://security.ubuntu.com precise-security/restricted 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/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Ign http://archive.canonical.com precise/partner TranslationIndex
Get:3 http://dl.google.com stable/main i386 Packages [1,234 B]
Hit http://ppa.launchpad.net precise/main Sources
Hit http://de.archive.ubuntu.com precise-updates Release
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Ign http://dl.google.com stable/main TranslationIndex
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://de.archive.ubuntu.com precise/main Sources
Hit http://de.archive.ubuntu.com precise/restricted Sources
Hit http://de.archive.ubuntu.com precise/universe Sources
Hit http://de.archive.ubuntu.com precise/multiverse Sources
Hit http://de.archive.ubuntu.com precise/main i386 Packages
Hit http://de.archive.ubuntu.com precise/restricted i386 Packages
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise/universe i386 Packages
Hit http://de.archive.ubuntu.com precise/multiverse i386 Packages
Get:4 http://de.archive.ubuntu.com precise/main TranslationIndex [3,706 B]
Hit http://de.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://de.archive.ubuntu.com precise/restricted TranslationIndex
Get:5 http://de.archive.ubuntu.com precise/universe TranslationIndex [2,922 B]
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://de.archive.ubuntu.com precise-updates/main Sources
Hit http://de.archive.ubuntu.com precise-updates/restricted Sources
Hit http://de.archive.ubuntu.com precise-updates/universe Sources
Hit http://de.archive.ubuntu.com precise-updates/main i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/restricted i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/universe i386 Packages
Hit http://de.archive.ubuntu.com precise-updates/multiverse i386 Packages
Hit http://security.ubuntu.com precise-security/universe Translation-en
Hit http://de.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://de.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://de.archive.ubuntu.com precise/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise/multiverse Translation-de
Hit http://de.archive.ubuntu.com precise/restricted Translation-en
Hit http://de.archive.ubuntu.com precise/restricted Translation-de
Hit http://de.archive.ubuntu.com precise-updates/main Translation-en
Hit http://de.archive.ubuntu.com precise-updates/main Translation-de
Hit http://de.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://de.archive.ubuntu.com precise-updates/multiverse Translation-de
Hit http://de.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://de.archive.ubuntu.com precise-updates/restricted Translation-de
Hit http://de.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://de.archive.ubuntu.com precise-updates/universe Translation-de
Err http://de.archive.ubuntu.com precise-updates/multiverse Sources
404 Not Found
Ign http://archive.canonical.com precise/partner Translation-en_US
Ign http://archive.canonical.com precise/partner Translation-en
Ign http://archive.canonical.com precise/partner Translation-de
Ign http://dl.google.com stable/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://dl.google.com stable/main Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://dl.google.com stable/main Translation-de
Ign http://extras.ubuntu.com precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-de
Ign http://extras.ubuntu.com precise/main Translation-de
Fetched 2,781 B in 1s (2,698 B/s)
W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Index
W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/precise/universe/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_precise_universe_i18n_Index
W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/source/Sources 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
答案1
删除那些文件
sudo rm -rf /var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Index
/var/lib/apt/lists/partial/de.archive.ubuntu.com_ubuntu_dists_precise_universe_i18n_Index