systemd 215-2 is now in testing; this now ensures the /etc/os-release link is present. Best I can tell either having the link or rebuilding initramfs resolves the issue.
https://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/systemd&id=bd40bc9a61dd401650364e11cb0f71ad4388e555 Thank you Dave R for taking care of this so quickly! Gene
