Re: [ovirt-users] upgrade hosted-engine os ( not hosts )

On Thu, Jun 30, 2016 at 8:00 AM, Yedidyah Bar David <didi(a)redhat.com&gt; wrote: > > > > Basically, you can manually do what the tool is supposed to do: > 1. Make sure state is clean and stable (no running/pending storage > actions, > no VMs in the middle of migration etc), all clusters are compat level 3.6, > etc. > 2. Move to global maintenance > 3. backup the engine using engine-backup and keep the backup elsewhere > 4. Reinstall engine vm with el7 and 4.0 engine (the tool will use the > engine > appliance, you might too but not sure how exactly). > 5. Restore the backup and run engine-setup. > 6. If all looks ok, leave global maintenance. > > If you manually keep a full backup of the engine vm before step 4, > you might be able to restore this backup if there are problems. > Doing this in the provided tool is currently the main blocking issue > for it. Hopefully will be provided in 4.0.1. > > Best, > -- > Didi > _____ Hello, coming back to this proposed steps, do you think it could be applied also to single host environment with hosted engine? In that case a few clarifications needed 4. Reinstall engine vm with el7 and 4.0 engine (the tool will use the engine appliance, you might too but not sure how exactly). --> so in my still working 3.6 environment I will install a clean VM with el7 and at least at the beginning while I provision it, it should have different hostname and ip from previous engine vm, correct? And then? Can I shutdown previous engine vm and after that, give the same hostname and ip to the new el7 vm ?