Hello,

I'm running Freesurfer 8.0.0 on a Rocky machine and run into an error when I use the -nonuintensitycor flag. The same image finels run perfectly fine without that flag, but with the flag I get this error:

#@# Intensity Normalization Tue Mar 18 15:22:23 EDT 2025
/s3l/fs_subjects/RAD_2100A/mri

mri_normalize -g 1 -seed 1234 -mprage nu.mgz T1.mgz

using max gradient = 1.000
setting seed for random number genererator to 1234
assuming input volume is MGH (Van der Kouwe) MP-RAGE
reading mri_src from nu.mgz...
error: mghRead(/s3l/fs_subjects/RAD_2100A/mri/nu.mgz, -1): could not open file^@
error: mri_normalize: could not open source file nu.mgz^@
Command exited with non-zero status 255

This looks to be a bug - any ideas for a workaround? Thanks!

Jeffrey M. Spielberg, Ph.D.

Associate Professor, Clinical Science

Department of Psychological and Brain Sciences

University of Delaware, Newark, DE 19716

Office: 344 Building X

Lab: Suite 302 Building X

Email: jmsp@udel.edu

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