I want to unmount an ISO file in my linux Ubuntu but after several searches on google on how to , still I failed to find a compatible and reliable one. Is there any programs or way to extract an ISO file in my linux Ubuntu ? (I'm just starting to use ubuntu for now.) It's already my day 4 of trial and error method but none of the tutorials are that helpful . please help me I'm new in using ubuntu and I just want to explore my knowledge in using this OS thanks . I hope anyone can help me ASAP.