How To Install an Upstream Version of Node.js on Ubuntu 12.04
Feel free to skip this section if you have a compiler and curl installed on your droplet. These steps are included since both a compiler and curl are required for the node.js installation itself. Additionally, you will need to have sudo privileges on your virtual private server for the next three commands (the actual installation does not require them).
Go ahead and run an apt-get update before starting to install any of the requirements.
sudo apt-get update
Once the update finishes, install a compiler on your VPS.
sudo apt-get install build-essential
Additionally, be sure to download curl, which we will need to perform the installation itself.
sudo apt-get install curl
Once those two components have downloaded, you are all ready to install node.js.
Install node.js and NPM (Node Package Manager)
I found the method described below to be the easiest way to install node.js. According to their site, there are eight ways to install node.js, and you can check out the other possibilities if you prefer.
This specific installation is very straightforward and installs node.js on the user's local system alone.
Start by changing the path to include commands from the ~/local/bin directory.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
Follow up by sourcing the .bashrc file:
Create two new directories for the installation:
mkdir ~/local mkdir ~/node-latest-install
Switch into the latest-install folder:
Run curl to get the node.js tarball and subsequently untar it.
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
Once that has completed, you can go ahead and start the installation process, limiting it to the local user. This ensures that you will not need sudo later.
Run make install, but be warned: it does take a while.
Finish up by downloading the the node package manager through curl:
curl -L https://npmjs.org/install.sh | sh
After you are all done, you can quickly check which version you have installed on your virtual private server.