Ubuntu13.10安装软件提示”需要安装不能信任的软件包”和libgmp.so缺失问题的解决办法？

Question

安装学习haskell-platform，遇到官方提到的问题libgmp.so缺失。

Your system needs libgmp.so.10, and may require a symlink from libgmp.so to libgmp.so.10

打开Ubuntu软件中心，遇到问题，截图：

按照网上帖子，手工执行一下命令，输出如下：

sudo apt-get update
忽略 http://ppa.launchpad.net saucy InRelease            
命中 http://ppa.launchpad.net saucy Release.gpg          
命中 http://ppa.launchpad.net saucy Release
命中 http://ppa.launchpad.net saucy/main amd64 Packages     
命中 http://ppa.launchpad.net saucy/main i386 Packages
忽略 http://archive.ubuntu.com saucy InRelease                           
忽略 http://archive.ubuntu.com saucy-updates InRelease
忽略 http://archive.ubuntu.com saucy-backports InRelease
忽略 http://archive.ubuntu.com saucy-security InRelease
忽略 http://archive.ubuntu.com saucy Release.gpg
忽略 http://archive.ubuntu.com saucy-updates Release.gpg
忽略 http://ppa.launchpad.net saucy/main Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-backports Release.gpg
忽略 http://ppa.launchpad.net saucy/main Translation-zh
忽略 http://archive.ubuntu.com saucy-security Release.gpg
忽略 http://ppa.launchpad.net saucy/main Translation-en
忽略 http://archive.ubuntu.com saucy Release
忽略 http://archive.ubuntu.com saucy-updates Release
忽略 http://archive.ubuntu.com saucy-backports Release
忽略 http://archive.ubuntu.com saucy-security Release
忽略 http://archive.ubuntu.com saucy/main Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy/restricted Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy/universe Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy/multiverse Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy/main amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/restricted amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/universe amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/multiverse amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/main i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/restricted i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/universe i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/multiverse i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/main Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/restricted Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/universe Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/multiverse Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/main amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/restricted amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/universe amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/multiverse amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/main i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/restricted i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/universe i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-updates/multiverse i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/main Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/restricted Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/universe Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/multiverse Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/main amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/restricted amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/universe amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/multiverse amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/main i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/restricted i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/universe i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-backports/multiverse i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/main Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/restricted Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/universe Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/multiverse Sources/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/main amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/restricted amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/universe amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/multiverse amd64 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/main i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/restricted i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/universe i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy-security/multiverse i386 Packages/DiffIndex
忽略 http://archive.ubuntu.com saucy/main Translation-zh_CN
忽略 http://archive.ubuntu.com saucy/main Translation-zh
忽略 http://archive.ubuntu.com saucy/main Translation-en
忽略 http://archive.ubuntu.com saucy/multiverse Translation-zh_CN
忽略 http://archive.ubuntu.com saucy/multiverse Translation-zh
忽略 http://archive.ubuntu.com saucy/multiverse Translation-en
忽略 http://archive.ubuntu.com saucy/restricted Translation-zh_CN
忽略 http://archive.ubuntu.com saucy/restricted Translation-zh
忽略 http://archive.ubuntu.com saucy/restricted Translation-en
忽略 http://archive.ubuntu.com saucy/universe Translation-zh_CN
忽略 http://archive.ubuntu.com saucy/universe Translation-zh
忽略 http://archive.ubuntu.com saucy/universe Translation-en
忽略 http://archive.ubuntu.com saucy-updates/main Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-updates/main Translation-zh
忽略 http://archive.ubuntu.com saucy-updates/main Translation-en
忽略 http://archive.ubuntu.com saucy-updates/multiverse Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-updates/multiverse Translation-zh
忽略 http://archive.ubuntu.com saucy-updates/multiverse Translation-en
忽略 http://archive.ubuntu.com saucy-updates/restricted Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-updates/restricted Translation-zh
忽略 http://archive.ubuntu.com saucy-updates/restricted Translation-en
忽略 http://archive.ubuntu.com saucy-updates/universe Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-updates/universe Translation-zh
忽略 http://archive.ubuntu.com saucy-updates/universe Translation-en
忽略 http://archive.ubuntu.com saucy-backports/main Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-backports/main Translation-zh
忽略 http://archive.ubuntu.com saucy-backports/main Translation-en
忽略 http://archive.ubuntu.com saucy-backports/multiverse Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-backports/multiverse Translation-zh
忽略 http://archive.ubuntu.com saucy-backports/multiverse Translation-en
忽略 http://archive.ubuntu.com saucy-backports/restricted Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-backports/restricted Translation-zh
忽略 http://archive.ubuntu.com saucy-backports/restricted Translation-en
忽略 http://archive.ubuntu.com saucy-backports/universe Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-backports/universe Translation-zh
忽略 http://archive.ubuntu.com saucy-backports/universe Translation-en
忽略 http://archive.ubuntu.com saucy-security/main Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-security/main Translation-zh
忽略 http://archive.ubuntu.com saucy-security/main Translation-en
忽略 http://archive.ubuntu.com saucy-security/multiverse Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-security/multiverse Translation-zh
忽略 http://archive.ubuntu.com saucy-security/multiverse Translation-en
忽略 http://archive.ubuntu.com saucy-security/restricted Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-security/restricted Translation-zh
忽略 http://archive.ubuntu.com saucy-security/restricted Translation-en
忽略 http://archive.ubuntu.com saucy-security/universe Translation-zh_CN
忽略 http://archive.ubuntu.com saucy-security/universe Translation-zh
忽略 http://archive.ubuntu.com saucy-security/universe Translation-en
错误 http://archive.ubuntu.com saucy/main Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/restricted Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/universe Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/multiverse Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/main amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/restricted amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/universe amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/multiverse amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/main i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/restricted i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/universe i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy/multiverse i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/main Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/restricted Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/universe Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/multiverse Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/main amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/restricted amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/universe amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/multiverse amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/main i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/restricted i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/universe i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-updates/multiverse i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/main Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/restricted Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/universe Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/multiverse Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/main amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/restricted amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/universe amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/multiverse amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/main i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/restricted i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/universe i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-backports/multiverse i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/main Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/restricted Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/universe Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/multiverse Sources
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/main amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/restricted amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/universe amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/multiverse amd64 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/main i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/restricted i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/universe i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
错误 http://archive.ubuntu.com saucy-security/multiverse i386 Packages
  404  Not Found [IP: 91.189.91.14 80]
W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/main/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/restricted/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/universe/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/multiverse/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/main/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/restricted/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/multiverse/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/main/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/universe/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/main/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/main/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/main/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/universe/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-updates/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/main/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/main/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/main/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/universe/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-backports/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/main/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/restricted/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/universe/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/multiverse/source/Sources  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/main/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/restricted/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/multiverse/binary-amd64/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/main/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/restricted/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/universe/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.

计算机系统：

hawk@oo:/$ uname -a
Linux oo 3.11.0-26-generic #45-Ubuntu SMP Tue Jul 15 04:02:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

问题：
hawk@oo:/$ ghci
GHCi, version 7.8.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... <command line>: can't load .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such file or directory)
hawk@oo:/$ 

执行命令行：

sudo apt-get update

。。。。。。。
错误 http://archive.ubuntu.com saucy-security/multiverse i386 Packages
  404  Not Found [IP: 91.189.91.14 80]

。。。。。。
W: 无法下载 http://archive.ubuntu.com/ubuntu/dists/saucy-security/multiverse/binary-i386/Packages  404  Not Found [IP: 91.189.91.14 80]

。。。。。。
E: Some index files failed to download. They have been ignored, or old ones used instead.

有没有朋友遇到过这个问题？

Answer 1

Ubuntu LTS バージョンのサポート期間は 5 年です。たとえば、12.04 と 14.04 はどちらも LTS バージョンであり、2 年ごとに LTS バージョンがリリースされます。 使用している 13.10 はサポート期間が 1 年間のみの通常バージョンです。13.10 を更新するための公式ソフトウェア ソース (archive.ubuntu.com) はメンテナンスされなくなりました。古いバージョンのソフトウェア ソースのみを使用できます:
http://old-releases.ubuntu.com/ubuntu/dists/saucy/
つまり、/etc/apt/sources.list の archive.ubuntu.com を old-releases.ubuntu.com:
に置き換える必要があります。 リーリー

http://askubuntu.com/questions/91815/how-to-install-software-or-upgrad...

ソースリストをリロードして設定を有効にします:

sudo apt-get アップデート
次に、apt-get を使用して、以前と同様にソフトウェアをインストールできます。