I´ve been reading the user manuals and tutorials in the geoserver website and I came across the RasterSymbolizer in the SLD reference page here . There you can see images of a "ColorMap" window where you can set the color ramp for the raster, but, thing is I cannot find such thing in my geoserver...
Does anyone knows how can I find it ???
Ciao, there is no "colormap" windows, the snippet you saw on that page are SLD portions.
Couple that link with this one: http://docs.geoserver.org/latest/en/user/styling/sld-cookbook/rasters.html
and this one:
and you should be able to move forward.
Basically you have to create a style (SLD) that contains a ColorMaps for the raster layer you are styling. You can do this via the Styles section in the Data settings.
Simone.