I just saw this..
"To change a volume name you have to do it from the Shell with the command relabel or from HDToolbox!"
I haven't tried it yet but it seems a lot easier than the only way that I found out how to do it in my experiments!...
I was rebooting, formatting and labeling the volumes after the installation partition creation from the live desktop and then rebooting again to proceed with the install choosing the not to format option

I will try the above in the future

I also installed aros one with "my" method(!) and didn't have the owb problem

Problem solved and correct methods learned!

Thank you for you help AMIGASYSTEM