installation of on debian wheezy:

su // root your machine
apt-get install curl // install curl, say yes
curl -sL | sudo bash - // install Node Package Manager

npm install -g grunt-cli // install grunt

mkdir /var/www/ // create dir for test-app
cd /var/www/

npm install -g meanio@latest       // Get the mean cmdline
mean init myApp                    // create your first app
cd myApp && npm install            // Install dependencies
grunt                              // Launch mean stack