I missed all the threads last week. Mr. Nagarjuna's post about the vrms utility was a good one, though.
I did it on my Ubuntu - I am 0.6% impure ;-)
*** Non-free packages installed on bhute
gogo mp3 encoder linux-386 Complete Linux kernel on 386. linux-restricted-modules- Non-free Linux 2.6.15 modules on 386 linux-restricted-modules- Restricted Linux modules on 386. linux-restricted-modules- Non-free Linux 2.6.15 modules helper script mpg123 MPEG layer 1/2/3 audio player Reason: No commercial distribution or use, no modifications allowed ttf-gentium Gentium TrueType font unrar Unarchiver for .rar files (non-free version) Reason: Modifications problematic
8 non-free packages, 0.6% of 1234 installed packages. ***
Seeing linux-386 in the list was a bit surprising though.