Keep OLVM Updated

I recently found out I've been updating the systems wrong. I was only doing "yum update".

I am now doing:

# yum update
# engine-upgrade-check
# yum update ovirt\*setup\*
# hosted-engine --set-maintenance --mode=global (this fails)
# engine-backup
# engine-setup

After the first yum update, I perform ymu updates on each of the hypervisors rebooting and moving VMs around.

After this I perform the upgrade for each host on the SPM until all have been upgraded. (this is the part I was not doing).

But I see now, I am supposed to only do "yum update" AFTER the 3rd line. The instructions I have do not include engine-backup.