Trying to update my nodes to 4.2.2, having a hard time. 

I updated the engine, no problems. Migrated VMs off host 1 and put it into maintenance.  I do a "check upgrade" in the GUI, it finds an update, but fails to install. 

Drop to CLI and try to do it manually

yum update -y

I get lots of dependency errors for missing packages.   A quick google shows that I may have the incorrect RPMs installed, and should only have the ovirt-node-ng-image and appliance rpms. So I try to install only those. 

So I think I have the right rpms now

But now when I do a yum update it says there are no packages marked for update. 

How to fix this?   Is there anything I have done wrong that I shouldn't do on my other hosts?