I read that just renaming ext from img to iso works. Try it, if not, rename it again. Nothing to it.
Also read this info on the subject:
https://askubuntu.com/questions/1205768/...t-in-linux
That the other way around, but it works also from img to iso.
Also read this info on the subject:
https://askubuntu.com/questions/1205768/...t-in-linux
That the other way around, but it works also from img to iso.