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

Possible Duplicate:
How to install software or upgrade from old unsupported release?

Hello all I am fairly new to Ubuntu however I was not able to find an answer to this. I currently run windows 7 through which i run a program called truecrypt. Through Truecrypt i have created a hidden archive and now i am using VMware oracle to run a virtual machine i have two machines one firewalled with damn small linux and the other running Ubuntu 10.10.0 here is my problem although i am currently connected to the internet through this machine when i go to upgrade to current version of Ubuntu I get this message

W:Failed to fetch  404  Not Found
W:Failed to fetch  404  Not Found
E:Some index files failed to download, they have been ignored, or old ones used instead.

needless to say quite a problem seeing as it does not upgrade a prompt response appreciated thank you.

share|improve this question

marked as duplicate by Eric Carvalho, Ringtail, qbi, Takkat, hhlp Jan 27 '13 at 11:06

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.

Ubuntu 10.10 has reached the end of life, meaning it is no longer supported.

You have two choices.

  1. Do a fresh install of a newer version.

  2. Update and upgrade it. If you opt for this, then you will have to update your sources list first.

Run gksudo gedit /etc/apt/souces.list in a terminal and add these lines:

deb CODENAME main restricted universe multiverse
deb CODENAME-updates main restricted universe multiverse
deb CODENAME-security main restricted universe multiverse

Then sudo apt-get update followed by sudo do-release-upgrade.

share|improve this answer

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