Comment # 3 on bug 1127481 from Konstantinos Tsamis

(In reply to Josef Reidinger from comment #2)
> Konstantinos - can you please describe what you exactly did? I see in logs
> some failures in bootloader proposal. Do you try to edit configuration on
> upgrade proposal screen? ( clicking on booting headline )? What exactly you
> were doing during upgrade beside common clicking on next?

No I had Legacy BIOS before and just chose upgrade and then next next. In the
summary screen it showed the error that it couldn't find the right partition
but I thought it would be written as well in the logs. It was basically
something like: 
Error output: No valid EFI partition

and then please report the bug with logs etc etc.