dnf headaches.

[Bruno Wolff III]

On Wed, Jun 10, 2015 at 21:44:37 -0400,
  "Derrik Walker v2.0" <dwalker at doomd.net> wrote:
>I seem to have some issues with dnf, and Dr Google isn't helping ...
>
>So I installed the "Games and Entertainment," which did exactly 
>nothing, except mark it installed.
>
>So, I figured out, that if I really want the games installed, I 
>probably should have:
>
># dnf group install with-optional "Games and Entertainment"
>
>Cool except it tells me that "Games and Entertainment" is already 
>installed.
>
>OK, so I'll just remove it and re-install it ...  but is says NOPE!!!
>
># dnf group remove "Games and Entertainment"
>Warning: Group 'Games and Entertainment' does not exist.
>...
>
>So, now I can't install it properly, or uninstall it.

I ran into something similar when I had a file conflict during a group 
install. My fix was to do dnf group mark remove group_name. I filed 
https://bugzilla.redhat.com/show_bug.cgi?id=1229046 for this, though 
mow it looks like part of the issue is bigger than handling file 
conflicts.