On Mon, Oct 29, 2018 at 10:00 AM Simone Tiraboschi <[email protected]> wrote:
>
> Hi,
> AFAIK https://resources.ovirt.org/pub/ovirt-4.1/ is still there, maybe you 
> could find some issues with other repos.
>
> If you want to take a shortcut, 
> https://resources.ovirt.org/pub/ovirt-4.1/rpm/el7/noarch/ovirt-engine-appliance-4.1-20180124.1.el7.centos.noarch.rpm
>  contains latest 4.1 based engine appliance.
> You can extract the OVA file from there and use it to boot a temporary VM 
> with virt-install and then upgrade the engine there to 4.2 in order to take a 
> new 4.2 based backup that your can restore where you prefer with up to date 
> rpms.
>
>
> On Mon, Oct 29, 2018 at 8:49 AM <[email protected]> wrote:
>>
>> I'm looking for a hand in recovering my ovirt cluster from a hardware 
>> failure. The hard drive on my cluster controller failed, and I would like to 
>> recover from backup.
>>
>> The problem is, the cluster was 4.1, which is less than a year old, but was 
>> nevertheless removed from the active repositories back in May. 4.2 will not 
>> recover from 4.1 backups.

If you are brave, you can also "cheat" - patch engine-backup to allow
recovering 4.1. That's a trivial patch, and the main problem with it
is that no-one tested it, and I do expect it might introduce subtle
issues. But considering the alternatives, it might be a reasonable
approach. If you do, try restoring first on an _isolated_ VM somewhere,
try to see how the engine behaves after restore (it will not work
very well, because it will not manage to access its hosts - if you
indeed isolated it well enough), and if it looks ok, try for real.

See also e.g.:

https://lists.ovirt.org/pipermail/users/2017-March/080346.html

https://bugzilla.redhat.com/show_bug.cgi?id=1425788

That said, not sure why 4.1 does not work for you. I think it should
still work, although I didn't try by myself recently.

Good luck and best regards,

>>
>> The storage domains are all intact (I think), and the hosts are still 
>> running (unmanaged). I've tried to manually restore the engine from backups, 
>> but either the upgrade is reinitializing or I am missing something.
>>
>> Any ideas?
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-- 
Didi
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