On Tuesday 27 January 2015, Thierry de Coulon wrote: If all you are doing is binary installs, you can keep the packages. The deb packages are only a few hundred megs. Debian keeps them in /var/cache/apt/archives. If you put the packages there before you issue your install command, apt will find and use them instead of downloading again. I made a tar file of the 3.5 and r14 debs and stuck them on thumb drive. Many years ago, I ran a repository with all the i386 binaries for Debian stable. At the time, I used a script figured out by someone at LSU's math department. Today, there are better programs to keep you updated. It was fun and made installs snappy. On campus, I used the math repo. My repo was useless to anyone but myself because my ISP had an upload speed cap. That has not changed at all.