There is a standard specification for bootable ISO files, but not for .img files.
Different .img files have different format/layout, so Ventoy can boot normal .ISO files, but Ventoy can only boot some .img files, not all.
Ventoy need to test and adapt for each type of .img files.
Different .img files have different format/layout, so Ventoy can boot normal .ISO files, but Ventoy can only boot some .img files, not all.
Ventoy need to test and adapt for each type of .img files.