apt-get update && apt-get -y install apt-transport-https echo 'deb https://people.debian.org/~biebl/systemd/jessie/ ./' > /etc/apt/sources.list.d/systemd_stable.list wget -O /etc/apt/trusted.gpg.d/biebl.gpg https://people.debian.org/~biebl/systemd/jessie/apt_key.gpg apt-get update apt-get upgrade