$ systemctl enable hwclock-save.service Unit files contain no applicable installation information. Ignoring. I believe adding following section to /lib/systemd/system/hwclock-save.service should fix the problem: [Install] WantedBy=sysinit.target If this is really a problem, I'd suggest to audit all systemd services and add this section where missing.
in git this service is removed http://cgit.freedesktop.org/systemd/commit/?id=da2617378523e007ec0c6efe99d0cebb2be994e1
WONTFIX for two reasons: 1. The service is going away, as Harald mentioned. 2. It is valid to not have an [Install] section if the administrator is not expected to enable/disable the service. hwclock-save.service is always pulled in from shutdown.target using the symlink /lib/systemd/system/shutdown.target.wants/hwclock-save.service (BTW, the administrator can still force a service like this to be disabled using the masking mechanism - symlinking the service name in /etc/systemd/system to /dev/null)
It may be fixed in git, but it's still not fixed in F15. I'm running latest packages (incl. updates-testing). Please keep it open until the change gets into F15.
You must have misunderstood the 2nd reason in comment #2. It makes no sense to do "systemctl enable hwclock-save.service".