[Part 2] Download torrent & newsserver package(s)

[okinomo]

2 Quick questions.

I can't seem to install unrar-nonfree. Any suggestions? What am I missing?

Package unrar-nonfree is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'unrar-nonfree' has no installation candidate


Also, the part in the first post about how to download everything to an external hard drive. Is that setting it up to download all the media from Sickbeard/couch potato to an external hdd? I know there are settings to change it around in those specific programs, however I'm not sure what to do. Can anyone bring a little clarity?

Thank you guys a ton!