Install Ghost on Ubuntu 14.04 Server
With the recent release of Ubuntu 14.04 many new users will be wanting to install the "server" flavor of Ubuntu. Ubuntu Server is very bare bones and does not have all of the tools required to install Ghost, via the Ghost Install Tutorial.
sudo apt-get update
sudo apt-get upgrade
sudo apg-get install gcc g++ npm
Now you can use the great tutorial over at HowToInstallGhost without issue.