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I installed ubuntu 14.04 LTS and ran the command:

sudo apt-get update

it gives the following error:

Err http://in.archive.ubuntu.com trusty InRelease

Err http://in.archive.ubuntu.com trusty-updates InRelease

Err http://in.archive.ubuntu.com trusty-backports InRelease

Err http://security.ubuntu.com trusty-security InRelease

Err http://archive.canonical.com trusty InRelease

Err http://extras.ubuntu.com trusty InRelease

Err http://in.archive.ubuntu.com trusty Release.gpg
  Could not resolve 'in.archive.ubuntu.com'
Err http://in.archive.ubuntu.com trusty-updates Release.gpg
  Could not resolve 'in.archive.ubuntu.com'
Err http://security.ubuntu.com trusty-security Release.gpg
  Could not resolve 'security.ubuntu.com'
Err http://archive.canonical.com trusty Release.gpg
  Could not resolve 'archive.canonical.com'
Err http://extras.ubuntu.com trusty Release.gpg
  Could not resolve 'extras.ubuntu.com'
Err http://in.archive.ubuntu.com trusty-backports Release.gpg
  Could not resolve 'in.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty/InRelease  

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty-updates/InRelease  

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty-backports/InRelease  

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/InRelease  

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/trusty/InRelease  

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/trusty/InRelease  

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'in.archive.ubuntu.com'

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty-updates/Release.gpg  Could not resolve 'in.archive.ubuntu.com'

W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty-backports/Release.gpg  Could not resolve 'in.archive.ubuntu.com'

W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/Release.gpg  Could not resolve 'security.ubuntu.com'

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'archive.canonical.com'

W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'extras.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.
now what should i do now?
share|improve this question
internet connection is slow –  user267144 May 18 '14 at 15:13
That would most likely be the problem. Apt-get can't connect tot he servers to fetch the packages. –  T0xicCode May 18 '14 at 15:55
i was facing the same issue. This was because of Internet connection. –  Nanhe Kumar Aug 18 '14 at 6:40
May be having a reboot solve the problem... –  KasiyA Oct 1 '14 at 14:19
@user267144: Try to run wget -d URL for requested URLs to debug your problem. E.g. wget -d http://in.archive.ubuntu.com –  andras.tim Jan 29 at 10:51

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