I have the following in my sources.list Now I want to add this: Question. Will / can this break the system, and how does apt-get know what version to get of a program when it's available on one of the deb's ? Thank you.
These 3 resources: deb http://security.debian.org/ stable/updates main contrib non-free deb http://mirrors.kernel.org/debian/ stable main contrib non-free deb-src http://mirrors.kernel.org/debian/ stable main contrib non-free contain packages from contrib and non-free, so they don't overlap with your other resources. You have multiple entries for main then, but this doesn't hurt as they contain the same packages.
So with a list like this I'm okay? Code: deb http://ftp.nl.debian.org/debian/ stable main deb-src http://ftp.nl.debian.org/debian/ stable main deb http://security.debian.org/ stable/updates main deb http://security.debian.org/ stable/updates main contrib non-free deb http://mirrors.kernel.org/debian/ stable main contrib non-free deb-src http://mirrors.kernel.org/debian/ stable main contrib non-free deb http://www.debian-multimedia.org/ stable main
