Hello,
I created this tutorial (in french) to help people installing a dedicated server with a Debian + VirtualBox to host other OS's such as Debian itself again. Network is set in HostOnly mode.
It can be read here in french :
http://www.metasharp.net/index.php/Conf ... r_Dedibox2
Here is the english google translation (use command lines from the french version, since a translation will not work obviously) :
http://translate.google.fr/translate?u= ... =&ie=UTF-8
since most instructions are written, I think it's quite understandable for english people too.
I also included init.d script to control the virtual machine.
Have fun.