Before working on improving Super Grub Disk, it's very important that you make contact with the core Super Grub Disk developers. Things herein might be slightly out of date or otherwise not easy to understand at first glance. So write to http://lists.forja.cenatic.es/mailman/listinfo/supergrub2-english mailing list first. For bug tracking, refer to: https://forja.cenatic.es/tracker/?atid=928&group_id=204&func=browse For feature requests, refer to: https://forja.cenatic.es/tracker/?atid=930&group_id=204&func=browse Our wiki also lists some areas that need work: http://www.supergrubdisk.org/wiki/