When I type in sudo apt-get update
I get this:
mohd-arafat-hossain@TUD:~$ sudo apt-get update
[sudo] password for mohd-arafat-hossain:
Ign http://bd.archive.ubuntu.com precise InRelease
Ign http://bd.archive.ubuntu.com precise-updates InRelease
Ign http://bd.archive.ubuntu.com precise-backports InRelease
Ign http://bd.archive.ubuntu.com precise Release.gpg
Ign http://bd.archive.ubuntu.com precise-updates Release.gpg
Ign http://bd.archive.ubuntu.com precise-backports Release.gpg
Ign http://bd.archive.ubuntu.com precise Release
Ign http://bd.archive.ubuntu.com precise-updates Release
Ign http://bd.archive.ubuntu.com precise-backports Release
Ign http://extras.ubuntu.com precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://extras.ubuntu.com precise Release
Hit http://ppa.launchpad.net precise Release
Hit http://extras.ubuntu.com precise/main Sources
Hit http://bd.archive.ubuntu.com precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main Sources
Hit http://bd.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://bd.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://bd.archive.ubuntu.com precise/universe TranslationIndex
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://security.ubuntu.com precise-security InRelease
Hit http://security.ubuntu.com precise-security Release.gpg
Hit http://bd.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://security.ubuntu.com precise-security Release
Hit http://bd.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://bd.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://bd.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/main Sources
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Hit http://bd.archive.ubuntu.com precise-backports/main TranslationIndex
Hit http://bd.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Hit http://bd.archive.ubuntu.com precise-backports/restricted TranslationIndex
Ign http://ppa.launchpad.net precise/main Translation-en
Hit http://bd.archive.ubuntu.com precise-backports/universe TranslationIndex
Hit http://bd.archive.ubuntu.com precise/main Translation-en
Hit http://bd.archive.ubuntu.com precise/multiverse Translation-en
Hit http://bd.archive.ubuntu.com precise/restricted Translation-en
Hit http://bd.archive.ubuntu.com precise/universe Translation-en
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://bd.archive.ubuntu.com precise-updates/main Translation-en
Hit http://bd.archive.ubuntu.com precise-updates/multiverse Translation-en
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
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://bd.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://bd.archive.ubuntu.com precise-updates/universe Translation-en
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
Hit http://bd.archive.ubuntu.com precise-backports/main Translation-en
Hit http://bd.archive.ubuntu.com precise-backports/multiverse Translation-en
Hit http://bd.archive.ubuntu.com precise-backports/restricted Translation-en
Hit http://bd.archive.ubuntu.com precise-backports/universe Translation-en
Err http://bd.archive.ubuntu.com precise/main Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise/restricted Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise/universe Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise/multiverse Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise/main i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise/restricted i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise/universe i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise/multiverse i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/main Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/restricted Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/universe Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/multiverse Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/main i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/restricted i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/universe i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-updates/multiverse i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/main Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/restricted Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/universe Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/multiverse Sources
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/main i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/restricted i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/universe i386 Packages
404 Not Found
Err http://bd.archive.ubuntu.com precise-backports/multiverse i386 Packages
404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/main/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/restricted/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/universe/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/multiverse/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/restricted/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/universe/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise/multiverse/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/main/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/restricted/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/universe/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/main/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/source/Sources 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/restricted/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/universe/binary-i386/Packages 404 Not Found
W: Failed to fetch http://bd.archive.ubuntu.com/ubuntu/dists/precise-backports/multiverse/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
How do solve this issue and not get this error.? Please
Looking on https://launchpad.net/ubuntu/+mirror/mirrors.ispros.com.bd-archive, it seems that the Bangladesh mirror has not been updated with Precise packages yet. You may want to select a different nearby mirror (India comes to my mind) or file a bug about it.
Something I always try to do whenever I am updating Ubuntu 12.04 packages is make sure I will be downloading them from the closest/best mirror/server.
Begin by launching the software center.
Select edit from the menu bar, then select Software Sources. ..
Source: http://www.ubuntulinuxguide.com/sudo-apt-get-update-error-slow-mirror-ubuntu-12-04/
The error you have got is because the link has actually been removed. This might be temporary or the server might not be working properly or under maintenance.(in your case the package files have not been uploaded on the server)
To solve this you try changing your download source(this may or may not work depending on the server)
open
software sources
click on
ubuntu software
tabthen in
Download from
choose other and then click onselect best server
After that software sources will automatically be updated.