There’s a new UEFI-aware ISO-building tool out, called ebiso:
UEFI bootable ISO image creator
Primary intention of ebiso was to create simple bootable UEFI ISO image for ReaR https://github.com/rear/rear on SLES11.
* supports 8.3 file name and partialy (filenames up to 200 bytes in filename length) RRIP (Rock Ridge Interchange Protocol)
* no additional dependencies
* released under GPL
* currently under heavy testing 😉
* more info will come (maybe)
* tested with rear on SLES11 SP3 and Centos 6.7
Firmware Security 