when running trac-preproc i'm getting this error (for dmri_motion and dmri_group), but it continues running:

/software/freesurfer/bin/dmri_motion: error while loading shared libraries: libnetcdf.so.6: cannot open shared object file: No such file or directory

what will this fail to do?

also is libnetcdf now a dependency for freesurfer? the reason i ask is that i'm running this on a remote cluster for which i don't have admin privileges.