deb http://www.ksplice.com/apt lucid ksplice

deb-src http://www.ksplice.com/apt lucid ksplice

And run the following commands as root:

apt-get install ca-certificates

wget -N https://www.ksplice.com/apt/ksplice-archive.asc

apt-key add ksplice-archive.asc

apt-get update

apt-get install uptrack