I am in environment, where no internet connection is available at all.
However, I've mirrored a part of raring repository to the local filesystem (75GB in total), hoping, that it is still possible to grab packages for installation from there with a mirror lines looking like:
deb-amd64 file:/mnt/spool/apt-mirror/ubuntu raring main restricted
But inside of the expert installer, it looks like it's impossible to set everything up like this... at least it looks like that. Everything I can select from is
Any suggestions are appreciated.