In reply to line 77 of blivet/tasks/fsmkfs.py: I'll try changing unready docstring to: "Reason if the actual thing, e.g. device, is is not ready for this action." -- To view this comment on github, visit https://github.com/mulkieran/blivet/commit/55badd1ccd0da7dfe9b78b06e15fd7341cb2ea37#commitcomment-10653849