@phillxnet Thanks for asking 
.
I had a little problem but, as I am only in a testing phase, I decided to re-install Rockstor on my HP Microserver from iso 3.9.1., activate the stable channel and upgrade, this also to get to know Rockstor better as it’s new to me.
It took a while and now it’s done.
So yes I have a shiny new Rockstor 3.9.2.-44 now.
Thanks a lot for your support.
Carla.