Hello, The debian/copyright file needs some clarification for the ntfsprogs/boot.c file. That file is licensed under the GPLv3+ license which effectively makes the whole tool under GPLv3. The source headers mention that the code is adapted from the vfat code, which was granted an exception under the Public Domain [1] Request clarification on the ntfsprogs/boot.c file's license. [1] https://github.com/dosfstools/dosfstools/blob/master/src/mkfs.fat.c#L198