在执行`sudo apt-get update`时，找不到404错误
cat /etc/issue Ubuntu 14.04.1 LTS \n \l 我在做sudo apt-get update时遇到以下错误，我已经尝试过sudo apt-get dist-upgrade ，但是似乎没有解决问题。 通过阅读与此问题相关的其他问题，似乎不再支持Ubuntu版本，但我正在运行最新版本的Ubuntu。
Ign http://au.archive.ubuntu.com trusty InRelease Ign http://au.archive.ubuntu.com trusty-updates InRelease Ign http://au.archive.ubuntu.com trusty-backports InRelease Ign http://dl.google.com stable InRelease Ign http://au.archive.ubuntu.com trusty-security InRelease Hit http://au.archive.ubuntu.com trusty Release.gpg Hit http://au.archive.ubuntu.com trusty-updates Release.gpg Hit http://au.archive.ubuntu.com trusty-backports Release.gpg Hit http://dl.google.com stable Release.gpg Hit http://au.archive.ubuntu.com trusty-security Release.gpg Hit http://au.archive.ubuntu.com trusty Release Hit http://au.archive.ubuntu.com trusty-updates Release Hit http://au.archive.ubuntu.com trusty-backports Release Hit http://dl.google.com stable Release Hit http://au.archive.ubuntu.com trusty-security Release Hit http://apt.insynchq.com trusty InRelease Hit http://au.archive.ubuntu.com trusty/main Sources Ign http://archive.ubuntu.com main InRelease Ign http://extras.ubuntu.com trusty InRelease Ign http://archive.canonical.com trusty InRelease Ign http://ppa.launchpad.net trusty InRelease Hit http://au.archive.ubuntu.com trusty/restricted Sources Hit http://au.archive.ubuntu.com trusty/universe Sources Hit http://dl.google.com stable/main amd64 Packages Hit http://au.archive.ubuntu.com trusty/multiverse Sources Hit http://au.archive.ubuntu.com trusty/main amd64 Packages Hit http://au.archive.ubuntu.com trusty/restricted amd64 Packages Hit http://au.archive.ubuntu.com trusty/universe amd64 Packages Hit http://dl.google.com stable/main i386 Packages Hit http://apt.insynchq.com trusty/non-free amd64 Packages Ign http://archive.ubuntu.com main Release.gpg Hit http://extras.ubuntu.com trusty Release.gpg Hit http://au.archive.ubuntu.com trusty/multiverse amd64 Packages Hit http://archive.canonical.com trusty Release.gpg Ign http://ppa.launchpad.net trusty InRelease Hit http://au.archive.ubuntu.com trusty/main i386 Packages Hit http://au.archive.ubuntu.com trusty/restricted i386 Packages Hit http://au.archive.ubuntu.com trusty/universe i386 Packages Hit http://au.archive.ubuntu.com trusty/multiverse i386 Packages Hit http://au.archive.ubuntu.com trusty/main Translation-en_AU Hit http://apt.insynchq.com trusty/contrib amd64 Packages Hit http://au.archive.ubuntu.com trusty/main Translation-en Ign http://archive.ubuntu.com main Release Hit http://au.archive.ubuntu.com trusty/main Translation-en_GB Hit http://extras.ubuntu.com trusty Release Hit http://archive.canonical.com trusty Release Ign http://ppa.launchpad.net trusty InRelease Hit http://au.archive.ubuntu.com trusty/multiverse Translation-en_AU Hit http://au.archive.ubuntu.com trusty/multiverse Translation-en Hit http://au.archive.ubuntu.com trusty/multiverse Translation-en_GB Hit http://au.archive.ubuntu.com trusty/restricted Translation-en_AU Hit http://au.archive.ubuntu.com trusty/restricted Translation-en Hit http://apt.insynchq.com trusty/non-free i386 Packages Hit http://au.archive.ubuntu.com trusty/restricted Translation-en_GB Hit http://au.archive.ubuntu.com trusty/universe Translation-en_AU Ign http://ppa.launchpad.net trusty InRelease Hit http://archive.canonical.com trusty/partner amd64 Packages Hit http://au.archive.ubuntu.com trusty/universe Translation-en Hit http://au.archive.ubuntu.com trusty/universe Translation-en_GB Hit http://au.archive.ubuntu.com trusty-updates/main Sources Hit http://au.archive.ubuntu.com trusty-updates/restricted Sources Hit http://apt.insynchq.com trusty/contrib i386 Packages Hit http://au.archive.ubuntu.com trusty-updates/universe Sources Hit http://extras.ubuntu.com trusty/main amd64 Packages Hit http://au.archive.ubuntu.com trusty-updates/multiverse Sources Ign http://ppa.launchpad.net trusty InRelease Hit http://archive.canonical.com trusty/partner i386 Packages Hit http://au.archive.ubuntu.com trusty-updates/main amd64 Packages Hit http://au.archive.ubuntu.com trusty-updates/restricted amd64 Packages Hit http://au.archive.ubuntu.com trusty-updates/universe amd64 Packages Hit http://au.archive.ubuntu.com trusty-updates/multiverse amd64 Packages Hit http://au.archive.ubuntu.com trusty-updates/main i386 Packages Hit http://au.archive.ubuntu.com trusty-updates/restricted i386 Packages Hit http://au.archive.ubuntu.com trusty-updates/universe i386 Packages Hit http://extras.ubuntu.com trusty/main i386 Packages Hit http://au.archive.ubuntu.com trusty-updates/multiverse i386 Packages Ign http://ppa.launchpad.net trusty InRelease Hit http://au.archive.ubuntu.com trusty-updates/main Translation-en Hit http://au.archive.ubuntu.com trusty-updates/multiverse Translation-en Hit http://au.archive.ubuntu.com trusty-updates/restricted Translation-en Hit http://au.archive.ubuntu.com trusty-updates/universe Translation-en Hit http://au.archive.ubuntu.com trusty-backports/main Sources Hit http://au.archive.ubuntu.com trusty-backports/restricted Sources Hit http://au.archive.ubuntu.com trusty-backports/universe Sources Ign http://ppa.launchpad.net trusty InRelease Hit http://au.archive.ubuntu.com trusty-backports/multiverse Sources Hit http://au.archive.ubuntu.com trusty-backports/main amd64 Packages Hit http://au.archive.ubuntu.com trusty-backports/restricted amd64 Packages Hit http://au.archive.ubuntu.com trusty-backports/universe amd64 Packages Hit http://au.archive.ubuntu.com trusty-backports/multiverse amd64 Packages Hit http://au.archive.ubuntu.com trusty-backports/main i386 Packages Hit http://au.archive.ubuntu.com trusty-backports/restricted i386 Packages Hit http://ppa.launchpad.net trusty Release.gpg Ign http://archive.canonical.com trusty/partner Translation-en Hit http://au.archive.ubuntu.com trusty-backports/universe i386 Packages Hit http://au.archive.ubuntu.com trusty-backports/multiverse i386 Packages Hit http://au.archive.ubuntu.com trusty-backports/main Translation-en Ign http://dl.google.com stable/main Translation-en_AU Hit http://au.archive.ubuntu.com trusty-backports/multiverse Translation-en Hit http://au.archive.ubuntu.com trusty-backports/restricted Translation-en Hit http://au.archive.ubuntu.com trusty-backports/universe Translation-en Hit http://au.archive.ubuntu.com trusty-security/main Sources Ign http://dl.google.com stable/main Translation-en Hit http://ppa.launchpad.net trusty Release.gpg Hit http://au.archive.ubuntu.com trusty-security/restricted Sources Hit http://au.archive.ubuntu.com trusty-security/universe Sources Hit http://au.archive.ubuntu.com trusty-security/multiverse Sources Ign http://dl.google.com stable/main Translation-en_GB Hit http://au.archive.ubuntu.com trusty-security/main amd64 Packages Hit http://au.archive.ubuntu.com trusty-security/restricted amd64 Packages Hit http://au.archive.ubuntu.com trusty-security/universe amd64 Packages Hit http://ppa.launchpad.net trusty Release.gpg Hit http://au.archive.ubuntu.com trusty-security/multiverse amd64 Packages Hit http://au.archive.ubuntu.com trusty-security/main i386 Packages Hit http://au.archive.ubuntu.com trusty-security/restricted i386 Packages Hit http://au.archive.ubuntu.com trusty-security/universe i386 Packages Hit http://au.archive.ubuntu.com trusty-security/multiverse i386 Packages Hit http://au.archive.ubuntu.com trusty-security/main Translation-en Hit http://au.archive.ubuntu.com trusty-security/multiverse Translation-en Hit http://au.archive.ubuntu.com trusty-security/restricted Translation-en Hit http://ppa.launchpad.net trusty Release.gpg Hit http://au.archive.ubuntu.com trusty-security/universe Translation-en Hit http://ppa.launchpad.net trusty Release.gpg Hit http://ppa.launchpad.net trusty Release.gpg Hit http://ppa.launchpad.net trusty Release.gpg Hit http://ppa.launchpad.net trusty Release Hit http://ppa.launchpad.net trusty Release Hit http://ppa.launchpad.net trusty Release Hit http://ppa.launchpad.net trusty Release Hit http://ppa.launchpad.net trusty Release Ign http://extras.ubuntu.com trusty/main Translation-en_AU Ign http://extras.ubuntu.com trusty/main Translation-en Hit http://ppa.launchpad.net trusty Release Ign http://extras.ubuntu.com trusty/main Translation-en_GB Hit http://ppa.launchpad.net trusty Release Hit http://ppa.launchpad.net trusty/main amd64 Packages Hit http://ppa.launchpad.net trusty/main i386 Packages Hit http://ppa.launchpad.net trusty/main Translation-en Hit http://ppa.launchpad.net trusty/main amd64 Packages Hit http://ppa.launchpad.net trusty/main i386 Packages Ign http://apt.insynchq.com trusty/contrib Translation-en_AU Hit http://ppa.launchpad.net trusty/main amd64 Packages Ign http://apt.insynchq.com trusty/contrib Translation-en Hit http://ppa.launchpad.net trusty/main i386 Packages Ign http://apt.insynchq.com trusty/contrib Translation-en_GB Ign http://apt.insynchq.com trusty/non-free Translation-en_AU Hit http://ppa.launchpad.net trusty/main Translation-en Ign http://apt.insynchq.com trusty/non-free Translation-en Hit http://ppa.launchpad.net trusty/main amd64 Packages Ign http://apt.insynchq.com trusty/non-free Translation-en_GB Hit http://ppa.launchpad.net trusty/main i386 Packages Hit http://ppa.launchpad.net trusty/main amd64 Packages Hit http://ppa.launchpad.net trusty/main i386 Packages Hit http://ppa.launchpad.net trusty/main Translation-en Hit http://ppa.launchpad.net trusty/main amd64 Packages Hit http://ppa.launchpad.net trusty/main i386 Packages Hit http://ppa.launchpad.net trusty/main Translation-en Hit http://ppa.launchpad.net trusty/main amd64 Packages Hit http://ppa.launchpad.net trusty/main i386 Packages Hit http://ppa.launchpad.net trusty/main Translation-en Err http://archive.ubuntu.com main/universe amd64 Packages 404 Not Found [IP: 91.189.92.200 80] Err http://archive.ubuntu.com main/restricted amd64 Packages 404 Not Found [IP: 91.189.92.200 80] Err http://archive.ubuntu.com main/multiverse amd64 Packages 404 Not Found [IP: 91.189.92.200 80] Ign http://ppa.launchpad.net trusty/main Translation-en_AU Err http://archive.ubuntu.com main/universe i386 Packages 404 Not Found [IP: 91.189.92.200 80] Ign http://ppa.launchpad.net trusty/main Translation-en Err http://archive.ubuntu.com main/restricted i386 Packages 404 Not Found [IP: 91.189.92.200 80] Ign http://ppa.launchpad.net trusty/main Translation-en_GB Err http://archive.ubuntu.com main/multiverse i386 Packages 404 Not Found [IP: 91.189.92.200 80] Ign http://ppa.launchpad.net trusty/main Translation-en_AU Ign http://archive.ubuntu.com main/multiverse Translation-en_AU Ign http://ppa.launchpad.net trusty/main Translation-en Ign http://archive.ubuntu.com main/multiverse Translation-en Ign http://ppa.launchpad.net trusty/main Translation-en_GB Ign http://archive.ubuntu.com main/multiverse Translation-en_GB Ign http://archive.ubuntu.com main/restricted Translation-en_AU Ign http://archive.ubuntu.com main/restricted Translation-en Ign http://archive.ubuntu.com main/restricted Translation-en_GB Ign http://archive.ubuntu.com main/universe Translation-en_AU Ign http://archive.ubuntu.com main/universe Translation-en Ign http://archive.ubuntu.com main/universe Translation-en_GB W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.92.200 80] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/restricted/binary-amd64/Packages 404 Not Found [IP: 91.189.92.200 80] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/multiverse/binary-amd64/Packages 404 Not Found [IP: 91.189.92.200 80] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/universe/binary-i386/Packages 404 Not Found [IP: 91.189.92.200 80] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.92.200 80] W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/main/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.92.200 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
的/etc/apt/sources.list
# deb cdrom:[Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)]/ trusty main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu trusty main restricted deb-src http://archive.ubuntu.com/ubuntu trusty main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu trusty-updates main restricted deb-src http://archive.ubuntu.com/ubuntu trusty-updates main restricted ## NB software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu trusty universe deb-src http://archive.ubuntu.com/ubuntu trusty universe deb http://archive.ubuntu.com/ubuntu trusty-updates universe deb-src http://archive.ubuntu.com/ubuntu trusty-updates universe ## NB software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://archive.ubuntu.com/ubuntu trusty multiverse deb-src http://archive.ubuntu.com/ubuntu trusty multiverse deb http://archive.ubuntu.com/ubuntu trusty-updates multiverse deb-src http://archive.ubuntu.com/ubuntu trusty-updates multiverse ## NB software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu trusty-security main restricted deb-src http://archive.ubuntu.com/ubuntu trusty-security main restricted deb http://archive.ubuntu.com/ubuntu trusty-security universe deb-src http://archive.ubuntu.com/ubuntu trusty-security universe deb http://archive.ubuntu.com/ubuntu trusty-security multiverse deb-src http://archive.ubuntu.com/ubuntu trusty-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu trusty partner # deb-src http://archive.canonical.com/ubuntu trusty partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu trusty main # deb-src http://extras.ubuntu.com/ubuntu trusty main # deb-src http://archive.ubuntu.com/ubuntu trusty main universe restricted multiverse # deb-src http://archive.ubuntu.com/ubuntu trusty main universe restricted multiverse deb http://archive.ubuntu.com/ubuntu main universe restricted multiverse # deb-src http://archive.ubuntu.com/ubuntu main universe restricted multiverse
删除读取deb http://archive.ubuntu.com/ubuntu main universe restricted multiverse线（以及之后的注释行，如果您愿意）。 然后运行sudo apt-get update 。 现在应该没有错误。
要将所有已弃用的urlhttp://archive.ubuntu.com更改为工作urlhttp://old-releases.ubuntu.com
sudo sed -i -e 's/:\/\/(archive.ubuntu.com\|security.ubuntu.com)/old-releases.ubuntu.com/g' /etc/apt/sources.list
这个答案基于https://smyl.es/how-to-fix-ubuntudebian-apt-get-404-not-found-package-repository-errors-saucy-raring-quantal-oneiric-natty/
首先运行sudo apt-get -y upgrade以正确获取apt-get。
然后你可以运行如下命令：
sudo apt-get -y update sudo apt-get -y dist-upgrade
没有收到“404 Not Found”错误。