[ovirt-users] Attaching ISO to hosted engine for OS upgrade

[Simone Tiraboschi]

On Wed, Feb 22, 2017 at 8:04 PM, Chris Adams <cma at cmadams.net> wrote:

> Once upon a time, Simone Tiraboschi <stirabos at redhat.com> said:
> > Then ee have a specific helper utility for 3.6/el6 -> 4.0/el7:
> > https://www.ovirt.org/develop/release-management/features/
> hosted-engine-migration-to-4-0/
>
> Ahh, that looks better.  I was looking at this:
>
> https://www.ovirt.org/documentation/migration-engine-36-to-40/
>
> which just kind of glosses over how to upgrade the OS. :)
>
> I do usually use my custom CentOS install (rather than the appliance);
> is there a way to do that?
>

No, not with that flow and not in 4.1 at all.
ovirt-engine-appliance is basically just a centos VM plus ovirt-engine.
Once deployed you can tune it as you need.


>
> Also, is it normally recommended to upgrade one major release at a time?
>

For the engine it's not just recommended, it's mandatory!


> In other words, aside from the engine CentOS6->7 step, would upgrading
> from 3.5 to 4.1 need to go through 3.6 and 4.0 along the way?
> --
> Chris Adams <cma at cmadams.net>
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