Splitting/tiling a raster

[Stefan Schwarzer]

Hi,

this subject is really not new. But I haven't found any real how-to  
for the whole story. Perhaps somebody could clarify the steps needed.  
when starting with an image of some larger size and when ending with  
a tiled raster. Cause I guess that' what has to be done.
- At least I have now one single big raster. As far as I understood I  
need to split the big image into smaller ones. But how?
- And then I can use gdaltindex to build the shapefile to define the  
tiles. Right?

Thanks for clarification.