On Sat, Feb 2, 2013 at 9:57 AM, Sam Varshavchik wrote:

Or, perhaps, I'm missing something. This laptop was updated from F17 to F18, and perhaps I need to install a package that automatically downloads updates in advance, so on update everything gets installed locally, but poking around with yum didn't find anything that seems to do that.

Whatever is needed should have gotten pulled in via dependencies.  It is handled by PackageKit and systemd so should be there by default anyway.  You might want to file a bug report if you can reproduce it.

Rahul