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> Hello FreeSurfer Developers,
>
> I am helping a researcher in my department run FreeSurfer on a new
> computer.  They insist that it should run on FreeSurfer 4.5 because their
> old system ran that version.  Is the following possible?  We can run
> FreeSurfer 6.0 fine, but they say there are differences between the
> versions.
>
> 1) FreeSurfer version: freesurfer-Linux-centos4_x86_64-stable-pub-v4.5.0-full
> 2) Platform: Ubuntu 18.04.1 LTS
> 3) uname -a: Linux clps-pb1 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 
> 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
> 4) recon-all.log: n/a Segmentation Fault - see below
>
> (base) root@clps-pb1:/var/tmp# cd freesurfer4
> (base) root@clps-pb1:/var/tmp/freesurfer4# ls
> ASegStatsLUT.txt  DefectLUT.txt           FreeSurferEnv.sh  mni
>        Simple_surface_labels2009.txt
> AUTHORS           diffusion               fsafd
> SegmentNoLUT.txt     subjects
> average           docs                    fsfast            sessions
>       tkmeditParcColorsCMA
> bin               FreeSurferColorLUT.txt  lib
> SetUpFreeSurfer.csh
> build-stamp.txt   FreeSurferEnv.csh       matlab
>  SetUpFreeSurfer.sh
> (base) root@clps-pb1:/var/tmp/freesurfer4# export
> FREESURFER_HOME=/var/tmp/freesurfer4
> (base) root@clps-pb1:/var/tmp/freesurfer4# source
> $FREESURFER_HOME/SetUpFreeSurfer.sh
> -------- freesurfer-Linux-centos4_x86_64-stable-pub-v4.5.0 --------
> Setting up environment for FreeSurfer/FS-FAST (and FSL)
> FREESURFER_HOME   /var/tmp/freesurfer4
> FSFAST_HOME       /var/tmp/freesurfer4/fsfast
> FSF_OUTPUT_FORMAT nii
> SUBJECTS_DIR      /var/tmp/freesurfer4/subjects
> MNI_DIR           /var/tmp/freesurfer4/mni
> (base) root@clps-pb1:/var/tmp/freesurfer4# cd ..
> (base) root@clps-pb1:/var/tmp# cd f4
> bash: cd: f4: No such file or directory
> (base) root@clps-pb1:/var/tmp# mkdir f4
> (base) root@clps-pb1:/var/tmp# cd f4
> (base) root@clps-pb1:/var/tmp/f4# ls
> (base) root@clps-pb1:/var/tmp/f4#  export SUBJECTS_DIR=/var/tmp/f4
> (base) root@clps-pb1:/var/tmp/f4# cp
> $FREESURFER_HOME/subjects/sample-001.mgz .
> (base) root@clps-pb1:/var/tmp/f4# ls -lrt
> total 6136
> -rw-r--r-- 1 root root 6280209 Nov 19 15:13 sample-001.mgz
> (base) root@clps-pb1:/var/tmp/f4# mri_convert sample-001.mgz
> sample-001.nii.gz
> mri_convert sample-001.mgz sample-001.nii.gz
> $Id: mri_convert.c,v 1.146.2.5 2009/04/08 18:40:23 nicks Exp $
> reading from sample-001.mgz...
> Segmentation fault (core dumped)
> (base) root@clps-pb1:/var/tmp/f4#
>
>
> Thanks,
>
> Paulo
>
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