Re: Planning Upgrade.
Have a look at the packages apt-move and, maybe best in your
$ apt-cache show apt-zip
Maintainer: Yann Dirson <email@example.com>
Depends: apt (>= 0.3.10)
Description: Update a non-networked computer using apt and removable media
These scripts simplify the process of using dselect and apt on a
non-networked Debian box, using removable media like ZIP floppies.
One generates a `fetch' script (supporting backends such as wget and
lftp, in a modular, extensible way) to be run on a host with better
connectivity, check space constraints of your removable media, and
then install the package on your Debian box.
Note on current version: space-checking is not done and spanning
multiple disks is not yet supported.