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Hello Kiyotaka,

Please try refreshing your copy/install of the Ubuntu 7.2.0 distribution as the packages have been updated to fix the warning below.

I think you were using the installer, so you could try the commands below to download and re-install with apt.  (If you were using the tar file then just change the file name in the wget command to be freesurfer-linux-ubuntu18_amd64-7.2.0.tar.gz, expand it in the right location and skip the commands with sum, apt remove, apt install).

.... with installer ...

$ rm -f  freesurfer_7.2.0_amd64.deb

$ wget https://secure-web.cisco.com/1i8WchnZn-ZDMrXexp7WlIVIxgdWjuz06xq1yUvfYcAZHMR...

$ sum freesurfer_7.2.0_amd64.deb

20191 3199044

$ sudo apt remove freesurfer

.... output deleted ....

$ apt install ./freesurfer_7.2.0_amd64.deb

.... output deleted ...

.... check environment ...

$ export FREESURFER_HOME=/usr/local/freesurfer/7.2.0

$ source $FREESURFER_HOME/SetUpFreeSurfer.sh

.... the output should have no warnings and you can also check ...

$ env | grep MINC

MINC_BIN_DIR=/usr/local/freesurfer/7.2.0/mni/bin

MINC_LIB_DIR=/usr/local/freesurfer/7.2.0/mni/lib

$ which nu_correct

/usr/local/freesurfer/7.2.0/mni/bin/nu_correct

- R.

-------- freesurfer-linux-ubuntu18_x86_64-7.2.0-20210714-aa8f76b --------Setting up environment for FreeSurfer/FS-FAST (and FSL)FREESURFER_HOME   /usr/local/freesurfer/7.2.0FSFAST_HOME       /usr/local/freesurfer/7.2.0/fsfastFSF_OUTPUT_FORMAT nii.gzSUBJECTS_DIR      /home/username/freesurfer/7.2.0/subjectsWARNING: MINC_BIN_DIR not defined.         'nu_correct' and other MINC tools         are used by some Freesurfer utilities.         Set NO_MINC to suppress this warning.WARNING: MINC_LIB_DIR not defined.         Some Freesurfer utilities rely on the         MINC toolkit libraries.         Set NO_MINC to suppress this warning.FSL_DIR           /usr/local/fsl =====