I have been trying to get that to work properly for the last few days...
It goes through the process of "updating" but does not actually manage to do so???
I also tried an update via the GUI & software installer so I could write down the packages it was trying to update. I noticed that each time I have tried to update it is trying to install the same packages but they do not actually install, so get noted as ones to install again after re-configuration.
The same is happening with ClamAV, I found some information that states that the router I have (Alcatel/Thomson speedtouch 510) can not process txt dns records & I would need to re-compile the package with the flag—enable-dns-fix. Although I have no idea how to manage this task would the same be true for the yum update package?