Locally Administered Address (LAA) is a type of MAC address when the burned-in address (BIA) within the MAC address is overridden by the user. In these cases the second bit of the most significant byte of the Organisationally Unique Identifier (OUI) is changed to a binary 1.

PyGrub can operate on filesystem image as well as disk image. To install grub into a disk image use this script grub_install_disk_image.sh