On Wed, May 01, 2013 at 20:38:01 -0500,
Bruno Wolff III <bruno(a)wolff.to> wrote:
It looks like there is an issue with yum-3.4.3-88.fc20 not working
properly, blocking updates. I have filed a but report
(
https://bugzilla.redhat.com/show_bug.cgi?id=958531) for this, but it
hasn't been confirmed yet.
Probably when there is one, some hand holding will be needed to
update yum or whatever broke it.
Downgrading to yum-3.4.3-87.fc20 works around the problem. You can download
it from koji and use rpm -Uvh --oldpackage yum-3.4.3-87.fc20.noarch.rpm
to install it.