When i run it i get the window asking for "root" password, but as soon as i typed it and hit OK i get another window saying i don't have "administrative privileges". On the "run as root" window this is the command being run: "partitionmanager --dontsu" Reproducible: Always
I found this: http://gparted-forum.surf4.info/viewtopic.php?id=17446 Although the 2nd workaround works, it seems is not a KDE exclusive problem.
Well, this is part of a wider problem. On wayland you can't easily run applications as root. They have to use KAuth to obtain privileges. But Partition Manager uses root A LOT, so porting everything to KAuth very non trivial. Will take some time... *** This bug has been marked as a duplicate of bug 259678 ***