Editing Running madagascar on a virtual machine (section)

===Download VirtualBox, the Madagascar Virtual system, and importing the system===

Download and install VirtualBox using the links at [[https://www.virtualbox.org/wiki/Downloads this site]].

Download the virtual system with Madagascar and Seismic unix installed from [[https://www.dropbox.com/s/4qwd8z5hizfwlyu/ub2gb_tex.ova?dl=0 this link]].  The file name ub2gb_tex means this is a "ubuntu 2 gigabyte system with LaTeX installed".  Double click the downloaded system and Virtual_box will import it.  This will run less than 10 minutes.  When I tried to start they system on a Mac the run window disappeared and an error announced.  Clicking "details"  produced a message "Implementation of the USB 2.0 controller not found!".  This virtual box was created on Windows 10 and it may run on a windows computer.  If you get the USB error follow the instruction in the next section to install guest additions.