Description of problem:
Upgrading form fedora 26 to fedora 27 branch via dnf system-upgrade resulted in running fedora 26 kernel with fedora 27 packages. The issue is that the /boot/grub2/grub.cfg file was not updated. Running grub2-mkconfig manually corrected the issue.
I suspect this is related to the repackaging of grub2 to no longer contain a grub2 package.
I would think this issue should block the beta release.
One thing I did notice is that the /etc/grub2.cfg symlink was absent. The only grub related symlink in /etc/ is the grub2-efi.cfg one and that points to a non-existent file, but this is not an efi configuration so I doubt that is an issue. I recreated the missing /etc/grub2.cfg symlink and will report back what happens next time the kernel is updated.
This seems similar to bug 1323842.
I ahve done more testing doing a "sudo ln -s ../boot/grub2/grub.cfg /etc/grub2.cfg" fixes this issue. SO the problem is that with the new packaging of grub2 nothing is creating this symlink. You could argue that perhaps the kernel update procedure should not be dependent on this but you would be wrong. Not creating this symlink but creating the /etc/grub2-efi.cfg is an inconsistency. It either needs to create both or neither.
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