[ovirt-users] Re: Install Ovirt 4.4.10 to standalone system from iso fails
On Tue, 14 Jun 2022, Guillaume Pavese wrote:
Not sure about recovering your cluster on a 4.5 install with a 4.4
backup. I
would also like to know if that is possible.
It's definitely possible. I had an issue with my 4.4->4.5 upgrade (always
make a backup first) and wanted to switch my engine from CentOS Stream to
Rocky anyway, so I built a new host and installed 4.5 using my backup from
4.4.10.
With 4.3->4.4 this was the only way to upgrade due to the OS version
change. 4.3 requires el7, 4.4 requires el8, and there is no in-place
el7->el8 upgrade (except maybe for very specific versions of RHEL). So
you had to make a backup on 4.3, reinstall your engine host with el8, then
restore the backup on 4.4. Plus a few extra steps if using
the self-hosted engine...