Use this generator -> http://debgen.simplylinux.ch/
Edit sources.list
file
root@mpd:# vim /etc/apt/sources.list
Copy/paste following code
deb http://cdn.debian.net/debian/ jessie main contrib non-free
deb-src http://cdn.debian.net/debian/ jessie main contrib non-free
deb http://security.debian.org/ jessie/updates main contrib non-free
deb-src http://security.debian.org/ jessie/updates main contrib non-free
# wheezy-updates, previously known as 'volatile'
deb http://cdn.debian.net/debian/ jessie-updates main contrib non-free
deb-src http://cdn.debian.net/debian/ jessie-updates main contrib non-free
# Backports
deb http://ftp.debian.org/debian/ jessie-backports main
deb-src http://cdn.debian.net/debian/ jessie-backports main
root@mpd:# apt-get update; apt-get -y upgrade
root@mpd:# apt-get -y --download-only dist-upgrade
root@mpd:# apt-get -y dist-upgrade
root@mpd:# apt-get clean; apt-get autoclean;apt-get autoremove