[ovirt-users] Migrate to CentOS7 on new hardware

[Jiri Belka]

----- Original Message -----
> From: "andreas ewert" <andreas.ewert at cbc.de>
> To: users at ovirt.org
> Sent: Friday, August 7, 2015 1:12:03 PM
> Subject: [ovirt-users] Migrate to CentOS7 on new hardware
> 
> Hello,
> 
> I want to migrate my oVirt Hypervisors to CentOS7. My strategy is to install
> new boxes with CentOS7 and add them to the OVirt Cluster.
> But I get this message in engine.log:
> 
> 2015-08-07 13:01:35,388 WARN
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
> (DefaultQuartzScheduler_Worker-55) [5b9014cb] Correlation ID: 5b9014cb, Job
> ID: eddd1466-307f-400e-8d9b-b8cd67c2433c, Call Stack: null, Custom Event ID:
> -1, Message: Not possible to mix RHEL 6.x and 7.x hosts in one cluster.
> Tried adding RHEL - 7 - 1.1503.el7.centos.2.8 host to a cluster with RHEL -
> 6 - 6.el6.centos.12.2 hosts.
> 
> I use oVirt Engine Version: 3.5.2.1-1.el6

IIRC recent version also migration between cluster but with warning
message. I don't remember if it was in 3.5 or 3.6 but it's doable.
There should be some button in migrate dialog which shows more options.

j.