On Tue, Jun 28, 2016 at 12:27 AM, Rick Stevens ricks@alldigital.com wrote:
Taking my cursory look at the system-upgrade plugin, it appears that it looks at the file I mentioned to figure out which version it currently is and where you want it to go. I've never dug through it that closely, but that seems to be what it does. I could be wrong (and probably am).
You're pretty much right. What the plugin actually does is it looks at the version of the package that provides either the system-release(releasever) or redhat-release virtual provide and takes that version as the current releasever. On Fedora, that package is fedora-release (you can find out by running "dnf repoquery --whatprovides redhat-release").