Hi users, Is it possible to downgrade ovirt-engine 3.6 to 3.5 if I remove this http://resources.ovirt.org/pub/yum-repo/ovirt-release36.rpm <http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm> then install this http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm and run this command? # yum update "ovirt-engine-setup*"? TIA Sandvik
On Tue, May 24, 2016 at 7:01 AM, Sandvik Agustin <agustinsandvik@gmail.com> wrote:
Hi users,
Is it possible to downgrade ovirt-engine 3.6 to 3.5 if I remove thishttp://resources.ovirt.org/pub/yum-repo/ovirt-release36.rpm then install this http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm and run this command? # yum update "ovirt-engine-setup*"?
No. If you already upgraded to 3.6, your database is incompatible with 3.5. You might try exporting all your VMs to an export domain, setup 3.5, import back. Not even sure this works - i.e. that 3.6 export domains are 3.5 compatible. Why do you want to do this? Best, -- Didi
Hi, thanks for the quick reply, i have export domain already running and attached to ovirt 3.6. co'z i have 3 hypervisor, 2 are running centos 6.7, 1 is running centos 7, i don't have any problem at this moment, but i want them to be in the same cluster, the 2 centos 6.7 are in the same cluster but i'm unable to add the host running centos 7 on that cluster, so what i did is create another cluster and add this host centos 7 on the new cluster. I just want them 3 host in the same cluster. :) TIA On Tue, May 24, 2016 at 2:25 PM, Yedidyah Bar David <didi@redhat.com> wrote:
On Tue, May 24, 2016 at 7:01 AM, Sandvik Agustin <agustinsandvik@gmail.com> wrote:
Hi users,
Is it possible to downgrade ovirt-engine 3.6 to 3.5 if I remove thishttp://resources.ovirt.org/pub/yum-repo/ovirt-release36.rpm then install this http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm and run this command? # yum update "ovirt-engine-setup*"?
No.
If you already upgraded to 3.6, your database is incompatible with 3.5.
You might try exporting all your VMs to an export domain, setup 3.5, import back. Not even sure this works - i.e. that 3.6 export domains are 3.5 compatible.
Why do you want to do this?
Best, -- Didi
Le 24/05/2016 08:36, Sandvik Agustin a écrit :
Hi,
thanks for the quick reply, i have export domain already running and attached to ovirt 3.6.
co'z i have 3 hypervisor, 2 are running centos 6.7
No one could resist asking you why you wouldn't upgrade those two hosts to centos 7 ...
, 1 is running centos 7, i don't have any problem at this moment, but i want them to be in the same cluster, the 2 centos 6.7 are in the same cluster but i'm unable to add the host running centos 7 on that cluster, so what i did is create another cluster and add this host centos 7 on the new cluster.
I just want them 3 host in the same cluster. :)
TIA
-- Nicolas ECARNOT
On Tue, May 24, 2016 at 9:47 AM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 24/05/2016 08:36, Sandvik Agustin a écrit :
Hi,
thanks for the quick reply, i have export domain already running and attached to ovirt 3.6.
co'z i have 3 hypervisor, 2 are running centos 6.7
No one could resist asking you why you wouldn't upgrade those two hosts to centos 7 ...
I think I can - because in 3.6 we do not support migrating VMs across clusters from el6 to el7, while in 3.5 we did. Not sure exactly why, but this was the reason for doing this migration in 3.5 for hosted-engine upgrade [1]. You might be able to move the VMs to the el7 cluster while they are down. Still requires downtime, but less than export/import. [1] https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/
, 1 is running centos 7, i don't have any problem at this moment, but i want them to be in the same cluster, the 2 centos 6.7 are in the same cluster but i'm unable to add the host running centos 7 on that cluster, so what i did is create another cluster and add this host centos 7 on the new cluster.
I just want them 3 host in the same cluster. :)
TIA
-- Nicolas ECARNOT _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Didi
On Tue, May 24, 2016 at 9:21 AM, Yedidyah Bar David <didi@redhat.com> wrote:
On Tue, May 24, 2016 at 9:47 AM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 24/05/2016 08:36, Sandvik Agustin a écrit :
Hi,
thanks for the quick reply, i have export domain already running and attached to ovirt 3.6.
co'z i have 3 hypervisor, 2 are running centos 6.7
No one could resist asking you why you wouldn't upgrade those two hosts to centos 7 ...
I think I can - because in 3.6 we do not support migrating VMs across clusters from el6 to el7, while in 3.5 we did. Not sure exactly why, but this was the reason for doing this migration in 3.5 for hosted-engine upgrade [1].
But in just released 3.6.6 it should be here again. See in release notes http://www.ovirt.org/release/3.6.6/ BZ 1241149 [RFE] Provide way to preform in-cluster upgrade of hosts from el6->el7. https://bugzilla.redhat.com/show_bug.cgi?id=1241149 or not?
On 24 May 2016 at 10:29, Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
On Tue, May 24, 2016 at 9:21 AM, Yedidyah Bar David <didi@redhat.com> wrote:
On Tue, May 24, 2016 at 9:47 AM, Nicolas Ecarnot <nicolas@ecarnot.net> wrote:
Le 24/05/2016 08:36, Sandvik Agustin a écrit :
Hi,
thanks for the quick reply, i have export domain already running and attached to ovirt 3.6.
co'z i have 3 hypervisor, 2 are running centos 6.7
No one could resist asking you why you wouldn't upgrade those two hosts to centos 7 ...
I think I can - because in 3.6 we do not support migrating VMs across clusters from el6 to el7, while in 3.5 we did. Not sure exactly why, but this was the reason for doing this migration in 3.5 for hosted-engine upgrade [1].
But in just released 3.6.6 it should be here again. See in release notes http://www.ovirt.org/release/3.6.6/
BZ 1241149 [RFE] Provide way to preform in-cluster upgrade of hosts from el6->el7. https://bugzilla.redhat.com/show_bug.cgi?id=1241149
or not?
Not sure about that RFE, but out-of-cluster migration of live VMs from EL6 to EL7 is very much possible (just hiding behind an "advanced" button in the UI), and is the migration path we took for many systems. -- Barak Korren bkorren@redhat.com RHEV-CI Team
participants (5)
-
Barak Korren -
Gianluca Cecchi -
Nicolas Ecarnot -
Sandvik Agustin -
Yedidyah Bar David