[ovirt-users] Migrate to Hosted Engine - problem with doc/web page

Bob Doolittle bob at doolittle.us.com
Tue May 20 01:13:49 UTC 2014

For the record, I'm pretty sure the How-To at 
http://www.ovirt.org/Migrate_to_Hosted_Engine actually requires an 
external database, although it never states so.
The instructions as written will not work otherwise, because it presumes 
a pre-existing database before running engine-backup restore.

If somebody can confirm I can open a bug on the page.

In any case I have started over with a fresh engine-setup in a fresh VM.

Having some issues I'll state in a different thread for clarity.


On 05/19/2014 12:25 PM, Bob Doolittle wrote:
> Hi,
> I'm trying to follow the instructions here:
> http://www.ovirt.org/Migrate_to_Hosted_Engine
> I've shut down my original engine and completed engine-backup.
> I've completed hosted-engine --deploy to the point where my new engine 
> VM is up and running, and I've installed the 3.4-stable version of 
> engine-install on it.
> Now I want to restore the backup on my new engine.
> However, at this point the instructions/how-to suddenly introduces a 
> new host name "didi-lap" which was not mentioned previously:
>> engine-backup --mode=restore --file=backup1 --log=backup1-restore.log 
>> --change-db-credentials --db-host=didi-lap --db-user=engine 
>> --db-password --db-name=engine
> The only entities introduced in this How-To are:
> ovirttest.home.local        The DNS CNAME record of the Engine (before 
> and after migration)
> my-engine.home.local        The underlying hostname of the original 
> engine
> didi-box1.home.local        The new machine which will run self-hosted 
> engine
> I am not sure what (if anything) I should supply for db-host.
> In my original setup, my engine had the db locally (I presume - 
> whatever the default was).
> In my new setup, my engine will have the same name as it did in the 
> old setup (it was a VM previously, I took it down).
> Do I even need to specify the db-host or change-db-credentials arguments?
> Do these instructions require that the database was originally stored 
> on an external entity (didi-lap) and that the database still resides 
> there?
> Or does it backup/restore the database entirely?
> Thanks,
>     Bob

More information about the Users mailing list