[ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7

VONDRA Alain AVONDRA at unicef.fr
Fri Sep 2 16:31:38 UTC 2016


Hi,
I’ve followed this doc, and hoped to find a solution with it, so I did’nt use the hosted-engine –deploy command, I’ve added a new host and at the end of the installation, the host stays unresponsive because unable to be attached to the same Storage volume .
Engine log :
2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand] (org.ovirt.thread.pool-8-thread-28) Could not connect host unc-srv-hyp2 to pool UNICEF with the message: null
2016-09-02 17:00:01,634 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand] (org.ovirt.thread.pool-8-thread-3) Command ConnectStoragePoolVDSCommand(HostName = unc-srv-hyp2, HostId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId = 00000002-0002-0002-0002-000000000193, masterVersion = 7) execution failed. Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: IRSNoMasterDomainException: Cannot find master domain: u'spUUID=00000002-0002-0002-0002-000000000193, msdUUID=cc9ab4b2-9880-427b-8f3b-61f03e520cbc'




________________________________


Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr<http://www.unicef.fr/>

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De : Simone Tiraboschi [mailto:stirabos at redhat.com]
Envoyé : vendredi 2 septembre 2016 18:20
À : VONDRA Alain <AVONDRA at unicef.fr>
Cc : Nir Soffer <nsoffer at redhat.com>; users <users at ovirt.org>
Objet : Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7



On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain <AVONDRA at unicef.fr<mailto:AVONDRA at unicef.fr>> wrote:
Hi,
I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4, actually the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and the two hypervisors are installed on CentOS 6.8.
I need anyway to upgrade the hosts to be able to move to 3.6.
I've tried to upgrade the first host, but I had of course issues telling that it can't be possible to mix different OS in the same cluster, I've also tried to create another cluster to put this host without success.
What is the best way to upgrade cleanly and safely ?
Thank you in advance for your advices

Follow this:
https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/

Simply ignore the steps that refers to the engine VM if you are with the engine on a physical system.


Alain VONDRA

Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76

UNICEF France
3 rue Duguay Trouin  75006
PARIS
www.unicef.fr<http://www.unicef.fr>

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