Possible Duplicate:
How can I install software or packages without internet (offline)?
I am about to format my computer and install Ubuntu. This particular computer is the local server that provides internet to all machines in our network. I will be installing Ubuntu 12.04 Server Edition. However, for my internet to work I need a particular package, which is not included in the regular list of packages that are included in the installation. This is the Madwimax package.
After I install Ubuntu, what is the proper way to install Madwimax, without some manual install (i.e. using apt-get, but without having internet)? Currently I still have internet so I can go and download certain packages, but I'm just not sure what and how.
You could use Keryx - http://keryxproject.org/
There are actually several options. I believe one of these should work for you:
AptGet/Offline from help.ubuntu.com
AptMedium from debian.org
apt-offline from debian.org
You can download the .deb file, copy it to usb stick (or something like that) and after the setup is done just install it via "sudo dpkg -i xxx".
For that to work you need all dependencies though!
This is your answer : http://ershadk.com/blog/2010/06/13/how-to-download-deb-packages-for-offline-installation-2/