* implement missing options (--grub, --kernel, --initrd, --squashfs, --uninstall)
* validate partition schema/layout: is the partition schema ok and the bootable flag set? (--validate?)
* provide --create-partition option?
+* provide --verify to check md5sums of files on usb device
* implement logic for storing information about copied files (register every file in a set()?)
* the last line in bootsplash (boot.msg) should mention all installed grml flavours
(attention, the line should become too long :))