Allow the use of xorriso to generate a iso-hybrid, to boot from a USB Key and with EFI.
This merge request add an option (-x) to use xorriso instead of genisoimage. This allow to create a USB Key, which boots correctly even with EFI.
It solves the bug I encounter before: https://framagit.org/luc/preseed-creator/issues/3
Change-Id: Ia4dd44666c4253bf6e1f3f29420843014ea7a480 Signed-off-by: Adrien Grellier adrien.grellier@ec-nantes.fr