Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

This question already has an answer here:

I have Ubuntu 13.10 installed as a dual boot system with Windows 7. Ubuntu loads normally, but when I try to update with Synaptic Package Manager, I get the following error message and the system stops there....

Failed to fetch  
Failed to fetch

(and other links listed too!)

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

What is wrong please?

share|improve this question

marked as duplicate by Eliah Kagan, Sylvain Pineau, Pandya, mikewhatever, bcbc Oct 1 '14 at 1:40

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

1… Your question is already asked here – Rakesh Godhala Dec 22 '13 at 4:11
I agree: I think that answer should solve this (or problems like it for others who find this question by searching). – Eliah Kagan Sep 29 '14 at 4:25

You should check your source file config : /etc/apt/sources.list

This website will also help you generate a sources.list :

enter image description here

To better understand what can be the problem check your log files : /var/log/dpkg.log also /var/log/apt

share|improve this answer
Very many thanks for your help. I edited the sources.list and this seems to have sorted the problem. Thanks again. – user226737 Dec 18 '13 at 19:06

This means that those mirrors are down for the moment (or permanently). You should replace them with good mirrors (ie. removing the part will get you a good mirror) or replace them entirely with your own preferred mirror.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.