On 4/30/19 8:01 PM, ToddAndMargo via users wrote:
If you are upgrade from 29 to 30, make sure you
update dnf and libdnf first do to a bug that has
been fixed (my procedure below takes care of this).
Due to previous issues, I always make sure that at least dnf and systemd
are fully updated before doing system-upgrade. And the process
specifically asks you if your system is up-to-date before starting.