# dnf system-upgrade download --refresh --releasever=3
Error: Problem: rdma-core-34.0-1.fc33.i686 has inferior architecture - rdma-core-34.0-1.fc33.x86_64 does not belong to a distupgrade repository - problem with installed package rdma-core-34.0-1.fc33.i686
# dnf system-upgrade download --refresh --releasever=34 --allowerasing --best
Error: Problem: cannot install the best update candidate for package iptables-1.8.5-6.fc33.x86_64 - problem with installed package iptables-1.8.5-6.fc33.x86_64 - package iptables-1.8.7-3.fc34.x86_64 requires iptables-libs(x86-64) = 1.8.7-3.fc34, but none of the providers can be installed - cannot install the best update candidate for package iptables-libs-1.8.5-6.fc33.x86_64 - cannot install both iptables-libs-1.8.7-6.fc34.x86_64 and iptables-libs-1.8.7-3.fc34.x86_64 - iptables-1.8.5-6.fc33.x86_64 does not belong to a distupgrade repository