The thing is that dnf on host might be old enough (or there might be no dnf at all, e.g. rhel7 box). It might be useful, for e.g. fedora-rawhide-x86_64, to: - install "only" dnf (or dnf-minimal) into separate chroot, say fedora-rawhide-DNF-x86_64 - run dnf from fedora-rawhide-DNF-x86_64 (and all the related tooling like rpm and libsolv) to --installroot regular fedora-rawhide-x86_64 chroot This is rather a wild idea, dnf is proven to have released bugs (especially in Rawhide) so I guess installing Fedora Rawhide by Rawhide's dnf might rather cause more issues than installing the Rawhide by yum. But what about to consider this as "optional" feature? Would that make sense? Idea by Igor, just filing a bug report to not forget to discuss this.
Duplicate of 1118719. And this has been suggested in #9 there. *** This bug has been marked as a duplicate of bug 1118719 ***