Vagrant 1.8.1 + VBox 5.0 installation on Debian

wget -q -O - http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc | sudo apt-key add -
sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian precise non-free contrib" >> /etc/apt/sources.list.d/virtualbox.org.list'
apt-get update
apt-get -y install linux-headers-$(uname -r) build-essential virtualbox-5.0 dkms
apt-get -y install build-essential
apt-get -y install virtualbox-5.0
apt-get -y install dkms
apt-get -y install rsync

cd /tmp

wget http://download.virtualbox.org/virtualbox/5.0.20/Oracle_VM_VirtualBox_Extension_Pack-5.0.20.vbox-extpack
VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-5.0.20.vbox-extpack

wget https://releases.hashicorp.com/vagrant/1.8.1/vagrant_1.8.1_x86_64.deb
dpkg -i vagrant_1.8.1_x86_64.deb

wget http://download.virtualbox.org/virtualbox/5.0.20/VBoxGuestAdditions_5.0.20.iso
vboxmanage guestcontrol "testvm" updateadditions  --source VBoxGuestAdditions_5.0.20.iso --verbose