Dear FS experts,

I'm trying to convert one skull-stripped image from the FS segmentation to a nifti in native space, but I'm having some troubles with it.

I'm doing everything with the a to d steps
a) cd /root/trabajo/freesurfer/subjects/s00x/mri/
b) mri_vol2vol --interp nearest --mov brain.mgz --targ rawavg.mgz --out brain2raw.mgz --regheader
c) mri_mask -T 2 rawavg.mgz brain2raw.mgz brainraw.mgz
d) mri_convert -odt float brainraw.mgz brain.nii


but in step b always get the following error:

mri_vol2vol --interp nearest --mov brain.mgz --targ rawavg.mgz --out brain2raw.mgz --regheader
movvol brain.mgz
targvol rawavg.mgz
outvol brain2raw.mgz
invert 0
tal    0
talres 2
regheader 1
noresample 0
interp  nearest (0)
precision  float (3)
Gdiag_no  -1
Synth      0
SynthSeed  1352942991
MRIalloc: could not allocate -512234304 frame

Cannot allocate memory





Any ideas how to solve this?
Should I to re-run any recon?


Many thanks in advanced,
Gabriel
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