I’ve just created this PR. I tried to test it (manually) if it works correctly (it should), however, @Lin-Buo-Ren, plese review and test it thoroughly.

Just a question: should we also remove L1079?

Changes to the code:

1. I added $uefi_ntfs_img_download variable that should contain Boolean string. If set to false, it will use the supplied image (if it is a file), else it will download the UEFI NTFS image. By default, it is set to true on line 65.

2. Also, I used the name refs where necessary, as you required.

3. I move the $uefi_ntfs_img test to the check_runtime_dependencies() function, as you required. Note that I have simplified the condition (a bit) using grep (line 702), however, I could not find a better solution to check the -u/--uefi-ntfs-img then using a for cycle, because $uefi_ntfs_img might contain spaces. I don’t like the for cycle here, because it increases the overhead and depends on seq. If you know of a better way, let me know please.

@Lin-Buo-Ren, is there anything that needs to be resolved (besides rebasing) before merging this PR? 😉