BusyBox (debian)

I was trying to show my dad ubuntu, and after the ubuntu loading screen it brought us to a "BusyBox v1.1.3(Debian 1:1.1.3-3ubuntu3) Built-inshell(ash)
enter 'help' for a list of built in commands." i tried "live break=top, then modprobe piix, exit" that didn't work anyone know WHY this is happening and HOW to fix it?

Regards