> From: "Alastair Neil" <ajneil.tech@gmail.com>
> To: "Ovirt Users" <users@ovirt.org>
> Sent: Thursday, July 16, 2015 5:38:41 PM
> Subject: [ovirt-users] reinstall hosted-engine with ovirt 3.5?
>
> Due to a moment of idiocy I accidentally upgraded my hosted-engine vm to
> Fedora 22 and now ovirt-engine will not start, I was able to get postgesql
> up an running so I was able to make a backup of the engine. As far as I know
> Ovirt 3.5 is not supported on F22, so my options seem limited.
>
> 1, update to the 3.6 prerelease
> 2, reinstall the VM, if I were doing this I would use CentOS 7
>
>
> my preference would be to fresh install the hosted-engine. I am guessing the
> way to go about this would be to shutdown the HE broker and agent daemons on
> all the nodes, possibly clean the metadata? and the do a hosted engine
> deploy as though migrating from an external engine.
>
> Can anyone comment if this is reasonable?

You can give a try to ovirt engine appliance and then restore
from backup ;)

j.