As recommended on kvz.io I have been using vagrant-vbguest to automatically update my Virtual Box Guest Additions.
I installed LMDE 2 (Linux Mint Debian Edition) on my laptop today and tried to install the plug-in but I run into some problems and wanted to document my solution. Really all that was required was installing two extra packages:
sudo aptitude update
sudo aptitude install ruby-dev zlib1g-dev
sudo vagrant plugin install vagrant-vbguest
The Debian backports repository contain packages or newer versions of packages that did not make it into the original release. You can read more about backports on the Debian website.
To install wheezy-backports you need to either add the repository line:
deb http://http.debian.net/debian wheezy-backports main
Alternatively you can create a new sources list file with this command (run as root):
# echo 'deb http://http.debian.net/debian wheezy-backports main' > /etc/apt/sources.list.d/wheezy-backports.list
Once installed, run apt-get update:
# apt-get update
Select individual packages to install:
# apt-get -t wheezy-backports install "package"
Photo credit: Giulio Turetta