Get Started: Introduction, Overview and Installation
From Lofaro Lab Wiki
Download and Install Gazebo
We recommend Gazebo 1.9 with ROS-hydro on Ubuntu 12.04 (for futher information about which combination of ROS/Gazebo verisons to use, see this link. Instructions given on this link1. Follow the notes and commands below.
1) Ubuntu repositories: Make sure your Ubuntu repositories are set to allow -restricted-, -universe-, and -multiverse-. For more information on repositories and how to change repository settings, see this link.
2) Set up your computer to accept software from packages.osrfoundation.org:
sudo sh -c 'echo "deb http://packages.osrfoundation.org/gazebo/ubuntu precise main" > /etc/apt/sources.list.d/gazebo-latest.list'
3) Get and install the keys for the repositories:
wget http://packages.osrfoundation.org/gazebo.key -O - | sudo apt-key add -
4) Update then install Gazebo:
sudo apt-get update sudo apt-get install gazebo
5) Check installation:
gzserver gzclient
Since Gazebo was installed from debian, it should say (do not enter this command into terminal; compare this to what it says when you entered 'gzserver') /usr/bin/gzserver /usr/bin/gzclient