If you are STILL using UBUNTU 9.10 [Karmic Koala], in which updates are not supported anymore, & It will refuse to Update / install any new app using apt-get, BUT you can still use it by adding following repositories in /etc/apt/sources.list
Remove all older lines and add the following lines in /etc/apt/sources.list using nano or gedit whatever you like.
For Ubuntu Ver 9 Karmic koala
deb http://old-releases.ubuntu.com/ubuntu/ karmic main restricted deb-src http://old-releases.ubuntu.com/ubuntu/ karmic main restricted deb http://old-releases.ubuntu.com/ubuntu/ karmic-updates main restricted deb-src http://old-releases.ubuntu.com/ubuntu/ karmic-updates main restricted deb http://old-releases.ubuntu.com/ubuntu/ karmic universe deb-src http://old-releases.ubuntu.com/ubuntu/ karmic universe deb http://old-releases.ubuntu.com/ubuntu/ karmic-updates universe deb-src http://old-releases.ubuntu.com/ubuntu/ karmic-updates universe deb http://old-releases.ubuntu.com/ubuntu/ karmic multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ karmic multiverse deb http://old-releases.ubuntu.com/ubuntu/ karmic-updates multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ karmic-updates multiverse deb http://security.ubuntu.com/ubuntu karmic-security main restricted deb-src http://security.ubuntu.com/ubuntu karmic-security main restricted deb http://security.ubuntu.com/ubuntu karmic-security universe deb-src http://security.ubuntu.com/ubuntu karmic-security universe deb http://security.ubuntu.com/ubuntu karmic-security multiverse deb-src http://security.ubuntu.com/ubuntu karmic-security multiverse
After changing the sources list, first update apt.
apt-get update
then try installing any package , for example.
atp-get install openssh-server
It should work fine.
UPGRADE TO UBUNTU VER 10.4 (CODENAME: LUCID LYNX)
# deb cdrom:[Ubuntu-Server 10.04.3 LTS _Lucid Lynx_ - Release i386 (20110719.2)]/ lucid main restricted deb http://old-releases.ubuntu.com/ubuntu/ lucid main restricted deb-src http://old-releases.ubuntu.com/ubuntu/ lucid main restricted deb http://old-releases.ubuntu.com/ubuntu/ lucid-updates main restricted deb-src http://old-releases.ubuntu.com/ubuntu/ lucid-updates main restricted deb http://old-releases.ubuntu.com/ubuntu/ lucid universe deb-src http://old-releases.ubuntu.com/ubuntu/ lucid universe deb http://old-releases.ubuntu.com/ubuntu/ lucid-updates universe deb-src http://old-releases.ubuntu.com/ubuntu/ lucid-updates universe deb http://old-releases.ubuntu.com/ubuntu/ lucid multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ lucid multiverse deb http://old-releases.ubuntu.com/ubuntu/ lucid-updates multiverse deb-src http://old-releases.ubuntu.com/ubuntu/ lucid-updates multiverse deb http://old-releases.ubuntu.com/ubuntu lucid-old-releases main restricted deb-src http://old-releases.ubuntu.com/ubuntu lucid-old-releases main restricted deb http://old-releases.ubuntu.com/ubuntu lucid-old-releases universe deb-src http://old-releases.ubuntu.com/ubuntu lucid-old-releases universe deb http://old-releases.ubuntu.com/ubuntu lucid-old-releases multiverse deb-src http://old-releases.ubuntu.com/ubuntu lucid-old-releases multiverse
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