Ciao Stefano,
we have to properly indagate this: thanks for the report.

Can you please attach from your host the output of
- grep cpuType /var/run/ovirt-hosted-engine-ha/vm.conf
- vdsm-client Host getCapabilities

Can you please attach also engine-setup logs from your 4.2.0 to 4.2.1

On Tue, Feb 13, 2018 at 10:51 AM, Stefano Danzi <> wrote:

> Hello!
> In my test system I upgraded from 4.2.0 to 4.2.1 and I can't start any VM.
> Hosted engine starts regularly.
> I have a sigle host with Hosted Engine.
> Host cpu is a Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz
> When I start any VM I get this error: "The CPU type of the cluster is
> unknown. Its possible to change the cluster cpu or set a different one per
> VM."
> All VMs have " Guest CPU Type: N/D"
> Cluster now has CPU Type "Intel Conroe Family" (I don't remember cpu type
> before the upgrade), my CPU should be Ivy Bridge but it isn't in the
> dropdown list.
> If I try to select a similar cpu (SandyBridge IBRS) I get an error. I
> can't chage cluster cpu type when I have running hosts with a lower CPU
> type.
> I can't put host in maintenance because  hosted engine is running on it.
> How I can solve?
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