Backport packages

You want to use the backportpackage command available in Ubuntu via:

apt-get install ubuntu-dev-tools

Read the manual documentation at http://manpages.ubuntu.com/manpages/precise/man1/backportpackage.1.html . You basically pass the source distribution with -s and the target destination with -d then the package as argument.

Example backporting python-git from Quantal to both Precise and Lucid:

mkdir workdir
backportpackage -s quantal -d precise -d lucid -w workdir python-git