What is VirtualBox?
VirtualBox is Sun’s desktop virtualization software. It is very popular in the open source community and came to Sun through the acquisition of Innotek. It lets you run multiple operating systems on a single computer. Installation of OpenSolaris into VirtualBox is the easiest way how to get OpenSolaris installed. Remember you need to allocate 768 MB or more memory for OpenSolaris, otherwise it won’t run. You can download VirtualBox here.