if not os.path.isfile("/usr/share/grml2usb/grub/splash.xpm.gz"):
logging.critical("Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read.")
if not os.path.isfile("/usr/share/grml2usb/grub/splash.xpm.gz"):
logging.critical("Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read.")