Hi Bruce, 
I checked and it is indeed a volume file with 256x256x256 size.

The full command line was: mris_make_surfaces -cover_seg edited_ribbon.mgz subject_id lh

Thanks

Corinna

On Sat, Feb 20, 2016 at 1:38 PM, Bruce Fischl <fischl@nmr.mgh.harvard.edu> wrote:
Hi Corinna

can you send us your full command line? Sounds like you are using a
surface overlay as the cover_seg parameter instead of a volume one. Try
running mri_info on it to make sure it is a volume (i.e. 256x256x256). If
not, you will need to sample it into the volume with mri_surf2vol

thanks
Bruce

On Thu, 18 Feb 2016, Corinna Bauer
wrote:

> Hello all,
> I am attempting to reshape the pial surfaces to fill the new boundaries in
> my edited ribbon.mgz file. I am using mris_make_surfaces with the -cover_seg
> flag but keep getting this error:
> ERROR: mris_make_surfaces-MRIcheckVolDims: volume1 height=256 != volume2
> height=1.
>
> Any suggestions?
>
> Thanks!
> Corinna
>
> FYI: I am trying to reshape the pial boundary based off this previous
> thread.
> https://mail.nmr.mgh.harvard.edu/pipermail///freesurfer/2014-November/04134
> 8.html
>
>
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