that's the one is not working
that's the one is not working
rpm-ostree update in the terminal and see what the output isujust update which I believe does the same thing as running the 'System Update' menu entry. If the menu launcher isn't working, you could open a terminal and run it there as well and see if it goes that way
rpm-ostree install lactujust instal-lact iircujust to get a list of themrpm-ostree remove lactrpm-ostree search 
rpm-ostree install lactujust instal-lactrpm-ostree remove lactrpm-ostree search