If you’re currently running Fedora 27 Server, you may be aware that a new version was released on May 1st. If you’re running Workstation, you should have already been alerted to this through the software updater, though if you haven’t for any reason, it should be fine to use the following instructions on Workstation. To upgrade just follow these few simple steps via the shell, the upgrade shouldn’t take more than 30 minutes to complete (including reboot).
Note: It’s assumed you’re logged in as the root user to perform this upgrade
dnf install dnf-plugin-system-upgrade << Only needed on new builds
dnf system-upgrade download –refresh –releasever=28
dnf system-upgrade reboot
When your system is back online you can complete the process by performing a standard software upgrade (there shouldn’t actually be any).
That’s all there is to it.