The correct way to upgrade appliance from 4.0 to 4.1
  1. Enable GlobalMaintenance
  2. Add the 4.1 repositories to the appliance
  3. Update the relevant packages
  4. Run # engine-setup
  5. Disable GlobalMaintenance
  6. Change cluster and datacenter compatibility version
The --upgrade-appliance command was added just for the purpose to make an easier pass from 3.6 to 4.0, all other scenarios not supported.
Best Regards

On Fri, Mar 24, 2017 at 5:35 PM, Nelson Lameiras <nelson.lameiras@lyra-network.com> wrote:
(I should add that I'm trying to upgrade "oVirt Engine Appliance 4.0" to "oVirt Engine Appliance 4.1")

Hello,

I'm trying to upgrade an appliance based oVirt install (2 nodes with centos 7.3, ovirt 4.0) using "hosted-engine --upgrade-appliance" on one host.

After multiples tries, I always get this error at the end :

[ INFO  ] Running engine-setup on the appliance
          |- Preparing to restore:
          |- - Unpacking file '/root/engine_backup.tar.gz'
          |- FATAL: Backup was created by version '4.0' and can not be restored using the installed version 4.1
          |- HE_APPLIANCE_ENGINE_RESTORE_FAIL
[ ERROR ] Engine backup restore failed on the appliance

is this normal?
is this process not yet compatible with oVirt 4.1 appliance?
which is the "official" way to update oVirt from 4.0 to 4.1

I tried to do a "yum update && engine setup && reboot" on engine, and indeed it works, but there is no rollback possible, so it seems a little dangerours (?)



cordialement, regards,


Nelson LAMEIRAS
Ingénieur Systèmes et Réseaux / Systems and Networks engineer
Tel: +33 5 32 09 09 70
nelson.lameiras@lyra-network.com
www.lyra-network.com | www.payzen.eu





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