How to update to Fedora 25
Install dnf system-upgrade plugin on Fedora 22.
Edit /usr/lib/python2.7/site-packages/dnf-plugins/system_upgrade.py around line 617, add 'pass' and comment 'raise' - disable check if new kernel will be installed.
- if not any(p.name.startswith('kernel') for p in downloads):
- pass #raise CliError(NO_KERNEL_MSG)
Do updates as normal.