[ovirt-users] restore of backup fail when Migrating to ovirt-engine 4.0

[Jiri Belka]

> [.. cutting all bogus as it is unreadable, even with html mails..]
> 
> On Tue, Jun 28, 2016 at 4:00 PM, Yaniv Dary <ydary at redhat.com> wrote:
> 
> > Do you have any 3.5 clusters? You can only upgrade to 4.0, if all the
> > cluster are 3.6 compatibility.

> >>
> >> #engine-backup --mode=restore --no-restore-permissions --provision-db
> >> --provision-dwh-db --provision-reports-db --file=engine-backup.tar.gz
> >> --log=engine-backup-restore.log
> >>
> >> Success with the restore!
> >>
> >> Thanks for pointing me out. What I did was just following the
> >> documentation, right or wrong.
> >>
> >> But when I run "Engine-setup" I got stucked with
> >>
> >> "[ INFO  ] Stage: Setup validation
> >> [WARNING] Less than 16384MB of memory is available
> >> [ ERROR ] Failed to execute stage 'Setup validation': Trying to upgrade
> >> from unsupported versions: 3.5
> >> [ INFO  ] Stage: Clean up
> >>           Log file is located at
> >> /var/log/ovirt-engine/setup/ovirt-engine-setup-20160628120936-ix7pb8.log
> >> [ INFO  ] Generating answer file
> >> '/var/lib/ovirt-engine/setup/answers/20160628121149-setup.conf'
> >> [ INFO  ] Stage: Pre-termination
> >> [ INFO  ] Stage: Termination
> >> [ ERROR ] Execution of setup failed"
> >>

3.6 EL6 migration to 4.0 EL7 works OK for me with following steps:

1. 3.6 EL6 engine (3.6 dc/clstr level)
2. 3.6 EL6 engine-backup and do backup
3. 4.0 EL7 clean install
4. 4.0 EL7 engine-backup and do restore
5. 4.0 EL7 engine-setup

What are the problematic steps on other side?

Do we have a problem if 3.6 EL6 engine does have dc/clstr level set to '3.5'?

j.