Login as root and run the following commands: cd /etc/apt echo “deb http://http.debian.net/debian wheezy-backports main” > /etc/apt/sources.list.d/backport.list apt-get update gpg –keyserver pgpkeys.mit.edu –recv-key 7638D0442B90D010 gpg -a –export 7638D0442B90D010 | apt-key add – (should get the ‘OK’ as answer) Installing a single package from backports: apt-get -t wheezy-backports install {package-name}

Here are the commands to install Java 8.x into Debian Wheezy via the repository and PPA. cd /etc/apt/ echo “deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main” | tee /etc/apt/sources.list.d/webupd8team-java.list echo “deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main” | tee -a /etc/apt/sources.list.d/webupd8team-java.list apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv-keys EEA14886 apt-get update apt-get install oracle-java8-installer