I'm running Ubuntu 12.04 inside Virtualbox on Windows XP Prof. Everything works fine. I'm running it at startup, but I have a problem with rebooting.
When I reboot my computer (WinXP) now the state of the virtual Ubuntu 12.04 isn't saved. After the reboot the virtualbox starts from the beginning.
Is there an option that Windows XP could send some signal to the virtual box to safely close the instance before the host reboot?