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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 http://extras.ubuntu.com/ubuntu/dists/natty/main/source/Sources.gz  404  Not Found
W:Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/main/binary-i386/Packages.gz  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.

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

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1 Answer

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 http://old-releases.ubuntu.com/ubuntu/ CODENAME main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ CODENAME-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ CODENAME-security main restricted universe multiverse

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

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