Ubuntu apt-getがパッケージを取得できない
Ubuntu 13.10（Saucy）をインストールしたばかりで、Sudo apt-get installを介してインストールしようとすると失敗し、一連の404エラーがスローされます。
例-tmuxのインストール
[jeeves@HAL] hadoop > Sudo apt-get install tmux
[Sudo] password for jeeves:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
tmux
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 247 kB of archives.
After this operation, 577 kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
tmux
Install these packages without verification [y/N]? Y
Err http://us.archive.ubuntu.com/ubuntu/ saucy/main tmux AMD64 1.8-4
404 Not Found [IP: 91.189.91.23 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/t/tmux/tmux_1.8-4_AMD64.deb 404 Not Found [IP: 91.189.91.23 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
この場合、アーカイブURLを取得できません。
mysql-serverをインストールすると、似たようなメッセージが表示されます
....
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/m/mysql-5.5/mysql-common_5.5.37-0ubuntu0.13.10.1_all.deb 404 Not Found [IP: 91.189.91.23 80]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/m/mysql-5.5/libmysqlclient18_5.5.37-0ubuntu0.13.10.1_AMD64.deb 404 Not Found [IP: 91.189.91.23 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/libd/libdbi-Perl/libdbi-Perl_1.627-1_AMD64.deb 404 Not Found [IP: 91.189.91.15 80]
....
...その他多数のパッケージ。
私もSudo apt-get updateを試し、--fix-missing?で実行しました
Ubuntuリポジトリはダウンしているのですか（依存している人の数を考えると奇妙に思われます）、それとも何か見逃していませんか？
編集：Sudo apt-get updateを実行すると、次のようになります。リソースが見つからないため、更新自体は機能しません
> Sudo apt-get update
Hit http://download.virtualbox.org maverick InRelease
Ign http://us.archive.ubuntu.com saucy InRelease
Ign http://us.archive.ubuntu.com saucy-updates InRelease
Ign http://extras.ubuntu.com saucy InRelease
Ign http://us.archive.ubuntu.com saucy-backports InRelease
Hit http://download.virtualbox.org maverick/contrib AMD64 Packages
Hit http://download.virtualbox.org maverick/non-free AMD64 Packages
Ign http://us.archive.ubuntu.com saucy Release.gpg
Hit http://extras.ubuntu.com saucy Release.gpg
Hit http://download.virtualbox.org maverick/contrib i386 Packages
Ign http://us.archive.ubuntu.com saucy-updates Release.gpg
Hit http://download.virtualbox.org maverick/non-free i386 Packages
Ign http://us.archive.ubuntu.com saucy-backports Release.gpg
Ign http://us.archive.ubuntu.com saucy Release
Ign http://security.ubuntu.com saucy-security InRelease
Hit http://extras.ubuntu.com saucy Release
Ign http://us.archive.ubuntu.com saucy-updates Release
Ign http://security.ubuntu.com saucy-security Release.gpg
Ign http://us.archive.ubuntu.com saucy-backports Release
Ign http://security.ubuntu.com saucy-security Release
Hit http://extras.ubuntu.com saucy/main Sources
Ign http://us.archive.ubuntu.com saucy/main Sources/DiffIndex
Ign http://security.ubuntu.com saucy-security/main Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy/restricted Sources/DiffIndex
Ign http://security.ubuntu.com saucy-security/restricted Sources/DiffIndex
Hit http://extras.ubuntu.com saucy/main AMD64 Packages
Ign http://us.archive.ubuntu.com saucy/universe Sources/DiffIndex
Ign http://security.ubuntu.com saucy-security/universe Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy/multiverse Sources/DiffIndex
Hit http://extras.ubuntu.com saucy/main i386 Packages
Ign http://security.ubuntu.com saucy-security/multiverse Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy/main AMD64 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/main AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy/restricted AMD64 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/restricted AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy/universe AMD64 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/universe AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy/multiverse AMD64 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/multiverse AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy/main i386 Packages/DiffIndex
Ign http://download.virtualbox.org maverick/contrib Translation-en_US
Ign http://security.ubuntu.com saucy-security/main i386 Packages/DiffIndex
Ign http://download.virtualbox.org maverick/contrib Translation-en
Ign http://us.archive.ubuntu.com saucy/restricted i386 Packages/DiffIndex
Ign http://download.virtualbox.org maverick/non-free Translation-en_US
Ign http://download.virtualbox.org maverick/non-free Translation-en
Ign http://us.archive.ubuntu.com saucy/universe i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy/multiverse i386 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/restricted i386 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/universe i386 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/multiverse i386 Packages/DiffIndex
Ign http://extras.ubuntu.com saucy/main Translation-en_US
Ign http://extras.ubuntu.com saucy/main Translation-en
Ign http://us.archive.ubuntu.com saucy-updates/main Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/restricted Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/universe Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/multiverse Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/main AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/restricted AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/universe AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/multiverse AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/main i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/restricted i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/universe i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-updates/multiverse i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/main Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/restricted Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/universe Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/multiverse Sources/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/main AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/restricted AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/universe AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/multiverse AMD64 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/main i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/restricted i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/universe i386 Packages/DiffIndex
Ign http://us.archive.ubuntu.com saucy-backports/multiverse i386 Packages/DiffIndex
Ign http://security.ubuntu.com saucy-security/main Translation-en_US
Ign http://security.ubuntu.com saucy-security/main Translation-en
Ign http://security.ubuntu.com saucy-security/multiverse Translation-en_US
Ign http://security.ubuntu.com saucy-security/multiverse Translation-en
Ign http://security.ubuntu.com saucy-security/restricted Translation-en_US
Ign http://security.ubuntu.com saucy-security/restricted Translation-en
Ign http://security.ubuntu.com saucy-security/universe Translation-en_US
Ign http://security.ubuntu.com saucy-security/universe Translation-en
Err http://security.ubuntu.com saucy-security/main Sources
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/restricted Sources
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/universe Sources
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/multiverse Sources
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/main AMD64 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/restricted AMD64 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/universe AMD64 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/multiverse AMD64 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/main i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/restricted i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/universe i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Err http://security.ubuntu.com saucy-security/multiverse i386 Packages
404 Not Found [IP: 91.189.91.23 80]
Ign http://us.archive.ubuntu.com saucy/main Translation-en_US
Ign http://us.archive.ubuntu.com saucy/main Translation-en
Ign http://us.archive.ubuntu.com saucy/multiverse Translation-en_US
Ign http://us.archive.ubuntu.com saucy/multiverse Translation-en
Ign http://us.archive.ubuntu.com saucy/restricted Translation-en_US
Ign http://us.archive.ubuntu.com saucy/restricted Translation-en
Ign http://us.archive.ubuntu.com saucy/universe Translation-en_US
Ign http://us.archive.ubuntu.com saucy/universe Translation-en
Ign http://us.archive.ubuntu.com saucy-updates/main Translation-en_US
Ign http://us.archive.ubuntu.com saucy-updates/main Translation-en
Ign http://us.archive.ubuntu.com saucy-updates/multiverse Translation-en_US
Ign http://us.archive.ubuntu.com saucy-updates/multiverse Translation-en
Ign http://us.archive.ubuntu.com saucy-updates/restricted Translation-en_US
Ign http://us.archive.ubuntu.com saucy-updates/restricted Translation-en
Ign http://us.archive.ubuntu.com saucy-updates/universe Translation-en_US
Ign http://us.archive.ubuntu.com saucy-updates/universe Translation-en
Ign http://us.archive.ubuntu.com saucy-backports/main Translation-en_US
Ign http://us.archive.ubuntu.com saucy-backports/main Translation-en
Ign http://us.archive.ubuntu.com saucy-backports/multiverse Translation-en_US
Ign http://us.archive.ubuntu.com saucy-backports/multiverse Translation-en
Ign http://us.archive.ubuntu.com saucy-backports/restricted Translation-en_US
Ign http://us.archive.ubuntu.com saucy-backports/restricted Translation-en
Ign http://us.archive.ubuntu.com saucy-backports/universe Translation-en_US
Ign http://us.archive.ubuntu.com saucy-backports/universe Translation-en
Err http://us.archive.ubuntu.com saucy/main Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/restricted Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/universe Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/multiverse Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/main AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/restricted AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/universe AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/multiverse AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/main i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/restricted i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/universe i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy/multiverse i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/main Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/restricted Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/universe Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/multiverse Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/main AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/restricted AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/universe AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/multiverse AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/main i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/restricted i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/universe i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-updates/multiverse i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/main Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/restricted Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/universe Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/multiverse Sources
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/main AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/restricted AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/universe AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/multiverse AMD64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/main i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/restricted i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/universe i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us.archive.ubuntu.com saucy-backports/multiverse i386 Packages
404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/main/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/main/source/Sources 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/restricted/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/restricted/source/Sources 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/universe/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/universe/source/Sources 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/multiverse/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/multiverse/source/Sources 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/main/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/restricted/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/restricted/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/universe/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/multiverse/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/multiverse/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/main/binary-i386/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/saucy-security/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.91.23 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/main/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/main/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/main/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/main/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/main/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/binary-AMD64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/main/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
タリク・カーンが示唆したように、私は同じことをしました、そしてそれはうまくいきました。
FIX UBUNTU 14.10ユニコーンAPT-GET UPDATE
最初にリポジトリをバックアップ
$ Sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup
$ Sudo vi /etc/apt/sources.list
us-archiveまたは http://us.archive.ubuntu.com/ubuntu/ のアーカイブの名前を http://old-release.ubuntu.com/ubuntu/ に変更します。
名前の変更 http://security.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-i386/Packages as http://old-releases.ubuntu.com/ ubuntu/dists/saucy-security/universe/binary-i386/Packages
$ Sudo apt-get update
Virtualboxのネットワークが間違っていると、この問題が発生しました。 NATに更新しました。インターネットにアクセスして、us.archive.ubuntu.comからパッケージをダウンロードできました。
これは、プロキシの使用によっても発生する可能性があります。/etc/environmentファイルにプロキシ定義があるかどうかを確認します。
cat /etc/environment
大文字または小文字のhttp_proxyまたはhttps_proxyを持つものがあれば、それぞれunsetです。
最近、apt-getの更新が0％で止まる問題がありました。
0％[security.ubuntu.comへの接続（2001：67c：1360：8001 :: 21）]
Ipv6でのある種のDNSの問題である可能性があります。これを回避策として追加するだけです。
-o Acquire::ForceIPv4=true
今日、本当に興味深いソリューションを試してみましたが、Ubuntuサーバーでうまくいきました。 DNSやaptの別の問題により、カスタムPPAから一部のパッケージをインストールしないようにする必要がありました。私がしたことは apt-fast パッケージをインストールし、aptの代わりにそれを使用してパッケージをインストールすることでした。
apt-fastはaptの代わりに動作しますが、aptの上で動作しますが、aria2cを使用してパッケージをダウンロードします。ダウンロード速度を上げるために使用されます。私の場合、ネットワークの問題がaptを失敗させる原因となっていた問題もすべて解決しました。
使用方法はaptとまったく同じです。
Sudo apt-fast install package-name