[ovirt-users] oVirt 3.6 to 4.0 Upgrade

[Brett I. Holcomb]

In order to not hijack another thread I wanted to separate this from the 
"latest CentOS libvirt updates safe?" thread since this is different 
than what the OP on that thread wants to do.

I've been digging through the 4.0 documentation since I'd like to 
upgrade in the not to distant future so I'm doing research and I'm confused.

I'm running 3.6.6 in a hosted Engine environment.  My engine runs in a 
vm on the host.  The host is a physical box and the VMs are stored on a 
NAS accessed by an iSCSI LUN,  I have no other hosts running so I can 
not migrate.

According to this link, https://www.ovirt.org/release/4.0.0/, I'm told 
to simply run yum update ovirt-engine-setup and then engine-setup but I 
assume that's for a non hosted-engine environment.  I then go to the 
link for Hosted_Engine_HOwto#Upgrade_Hosted_Engine guide and am told to 
do this.

Set hosted-engine maintenance mode to global and other stuff that is 
written assuming I have some place to migrate my VMs to.  I do not have 
another host.

So how do I properly move to oVirt 4.0 from 3.6.6 on a single physical 
host running a hosted Engine VM?

Thanks.