sorry for that, but I'm not able to get out fo the problem...
I dowloaded the OpenROV image, and updated succesfully.
For now, everything is ok (except that sometimes the beaglebone shut-down itself without reason, but that's another story).
Now, when I connect my HD-5000 webcam, nothing happens: in the cockpit I see the "no camera" image...
Well, when I try to install V4L2 drivers (http://linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers) I get some errors and, googling around, I find that I have to update the Kernel headers.
DOH! ...and now?? :-(
Do someone have an image working? Or, otherwise, a solution for a stuck newbie?