Hi @BinaryNumber , thanks for your suggesions, i have understood clearly how to proceed 🙂

Does it work only for mame or all systems with their own emulators?

Thanks again

@shirizaan
I don't think that this is possible, because if it is, it would be mentioned here:
https://wiki.recalbox.com/en/basic-usage/features/screensavers

But who knows:
Maybe there is a possibility I didn't know ?

I totally understand that. With the Storage option in Recalbox set to AnyExternal, Recalbox was writing boot profiles to every device I plugged in. Since a fresh boot profile gets written, so do basic Kodi files, and every time I'd inadvertently load a boot profile from a drive I didn't intend to, loading either RecalBox or Kodi resulted in my entire rom/media libraries getting overwritten.

I fussed with that option so much trying to get it to work that I was scared of booting into RecalBox with my external hard drives plugged in at all; which means I never saw the option to set a static individual drive as a Storage option.

@Substring

not sure what you mean.. I just did the following as per my previous post:

from the link you provided: http://archive.recalbox.com/updates/v1.0/unstable/
in which I downloaded the Raspberry Pi 3 image recalbox.img (sha1) using link: http://archive.recalbox.com/updates/v1.0/unstable/rpi3/recalbox.img.xz.sha1
I unzipped the IMG file and loaded the image on a fresh new Micro SD card using Win32DiskImager and rebooted the system.

@voljega it's solved since beta4 or 5

remember to save the files you changed, they will most probably overwritten on update

Hello wiki page : https://github.com/recalbox/recalbox-os/wiki/recalbox.conf-(EN) this exemple :

## You can override the global configuration here ## Here is the snes example ;snes.videomode=CEA 4 HDMI ;snes.core=snes9x_next ;snes.shaders=/recalbox/share/shaders/shaders_glsl/mysnesshader.gplsp ;snes.ratio=16/9 ;snes.smooth=0 ;snes.rewind=1 ;snes.autosave=0 ;snes.emulator=libretro ## If you do not want recalboxOS to generate the c onfiguration for the emulator : ;snes.configfile=/path/to/my/configfile.cfg

name of system : Available libretro cores :

snes n64 gb/gbc gba virtualboy megadrive mastersystem gamegear sega32x segacd sg1000 neogeo mame fbalibretro ngp gw vectrex lynx lutro wswan pcengine atari2600 atari7800 msx prboom psx cavestory

I copied the whole set down and tried it all before I started cutting back to just the working stuff from the list. Don't worry I'll work out what it is. I can always just re-torrent down the few roms and retry.