I am installing ubuntu 12.04 onto a HP 1U rack server that is in a lab with no internet connection.
I need to install PHP, Nginx and other packages so that I can run my web app on it that will serve internal clients.
I tried to run
apt-offline set /media/usb/updates.sig but the server prompts me to install apt-offline instead.
What should I do to install the packages I want and keep the server up to date if it is not connected to the internet?