Hi JeanPaul,
Welcome
For default X-Plane 11.50 aircraft including B737-800, Zibo 737, X-Plane X430/530,
you download the Linux version of X-Plane 11 (11.50+) from FMS Downloads
Unzip (retaining paths) xplane11_native_2014.zip to
…your X-PLANE 11\Custom Data folder.
For X-Plane FF757/767/777, X-Crafts Embraer E-175, Aerobask SkyView, JRollon Planes CRJ200, JARDesign A320/A330, ToLiss A319 (XP10), STMA Aircraft, Magknight 787AEaircraft below,
you download the Linux version of X-Plane 11 GNS 430 from FMS Downloads
Unzip (retaining paths) xplane_customdata_native_2014.zip to
…your X-PLANE 11\Custom Data\GNS430
Also please see FAQ - Nav Data Out Of Date. Note there is no Linux support in FMS Data Manager.
Cheers
Ian