raster display problem

[wljiao]

Hello,

I installed grass4.2 in linux RedHat 5.2.  I try to convert a tiff file to a grass
raster map and display it.  I use the commands:
  r.in.tiff
  d.rast
While it just displayed a white sheet on the graphic screen.  I do not know which
step I did is not correct: the convertion or the raster map display.  What should
I do?

By the way, how can I import raw image data into grass?  The data are stored on
the disk rather than on the tape.


Thanks for any response.

Weili