SOLVED Multiboot NOOBS Raspbian + Recalbox beta xmas edition

[caxelair]

Hi guys,
I did post this on the beta thread as well and edit each of them once answers will be found

I had a RPi 3 B+ for xmas. I'd like to try my second xmas present -> this new Recalbox. However I'm still a noob.

My goal is to have a dual boot with Raspbian (for Jeedom) using NOOBS.

I don't know how to convert the img.xz into a the same format as in: os/recalboxOS-rpi3/ from "recalboxOS-4.1.0.zip" (download here https://github.com/recalbox/recalbox-os/releases)
Even when I mount "recalbox.rpi3.18.12.24.Christmas.beta.img", I don't find the same structure.

Any thoughts guys?
Thanks a lot.

Edit: I did manage to install the old version 4.1

[acris]

This post is deleted!

[caxelair]

Answer to myself or for folks who try to do the same as me:

"It s a beta
It s not avaible for noobs now."

-> let's wait & see

[Goldenstarc]

i just want to do the same and it was possible in older version of recalbox.
but in newer the problem is that recalbox file ext is .img (2 partition)
can anyone help ?

[acris]

Beta is Not compatible with noobs.
Only when stable version will come out.