Ubuntu

404 Fetching Error when tying to update xubuntu 14.04 to 16.04

Asked by veysel macit

when I use this command sudo do-release-upgrade I always get the error which is given below

Err http://us.archive.ubuntu.com xenial/universe Sources

Err http://us.archive.ubuntu.com xenial/universe amd64 Packages

Err http://us.archive.ubuntu.com xenial/universe i386 Packages

Err http://us.archive.ubuntu.com xenial/universe Sources
  404 Not Found [IP: 91.189.91.26 80]
Err http://us.archive.ubuntu.com xenial/universe amd64 Packages
  404 Not Found [IP: 91.189.91.26 80]
Err http://us.archive.ubuntu.com xenial/universe i386 Packages
  404 Not Found [IP: 91.189.91.26 80]
Fetched 2.874 kB in 6s (0 B/s)

Error during update

A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.

W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources
404 Not Found [IP: 91.189.91.26 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages
404 Not Found [IP: 91.189.91.26 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages
404 Not Found [IP: 91.189.91.26 80]
, E:Some index files failed to download. They have been ignored, or
old ones used instead.

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Manfred Hampl (m-hampl) said : 		#1

For diagnostic purposes please provide the output of the following commands:

uname -a
lsb_release -crid
sudo apt-get update

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actionparsnip (andrew-woodhead666) said : 		#2

Do you use a proxy for Web access?

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Launchpad Janitor (janitor) said : 		#3

This question was expired because it remained in the 'Needs information' state without activity for the last 15 days.