[GRASS-user] gdalwarp latlong to UTM

[gary]

I've tried using gdalwarp to convert from latlong to UTM. I used this 
format, as pulled from the remotesensing.org website:
gdalwarp -t_srs '+proj=utm +zone=11 +datum=WGS84' raw_spot.tif utm11.tif

After conversion, r.los believes the new file is still in latlon format. 
[I used the override option.] I tried using the -te option, but can't 
seem to get gdalwarp to accept it.

Questions:
1) Would the -te options help
2) If so, can someone post a command line using it with UTM