I've taken the liberty to improve upon the lilo support (not) present in boot-update, by simply using the label of the sector as the label of the boot entry, allowing users of lilo to use boot-update currently.

Without the attached patch, users will ALWAYS be met with an error, unless the kernel name is less than 15 characters, because the extension did not take into account the 'label' property, which is automatically assigned as the kernel name if no assigment was otherwise done.

The label itself may (or may not?) be up to 15 characters, but the kernel name can be as long as the system supports (likely 255 characters).