Hi Xuesong,

Sorry this took a bit of digging.

surf2vol binary from fem_elastic is in the 8.0.0 linux releases, but unfortunately you will not find it in the Mac arm64 version. Do you have access to any linux computers? Or you could try to go back to an earlier version on the Mac.

Best, Lilla

________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Xuesong Su hayabusasxs@gmail.com Sent: Wednesday, April 2, 2025 2:37 PM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] cvs register error

External Email - Use Caution Dear all,

I am attempting to use my own data and follow the instructions on the petsurfer wiki. I ran the following command:

`mri_cvs_register --mov 001 --template cvs_avg35_inMNI152`

The output showed:

[...] `mri_cvs_register: Step 1 (spherical registration) took 542 seconds` `surf2vol: Command not found.`

It appears that Step 1 has been completed, but it's stuck on Step 2. So, I tried running:

`mri_cvs_register --mov 001 --template cvs_avg35_inMNI152 --step2 --nocleanup`

However, the output still returned `surf2vol: Command not found.`

Prior to this, I had already set the `$SUBJECTS_DIR` environment variable and copied `/Applications/freesurfer/dev/subjects/cvs_avg35_inMNI152` to the `$SUBJECTS_DIR` directory.

(1) Platform: MacBook Pro M2, macOS 15.3.2, (2) FreeSurfer version: freesurfer-macOS-darwin_arm64-dev-20240909-9ca95c6, downloaded from MailScanner has detected a possible fraud attempt from "secure-web.cisco.com" claiming to behttps://secure-web.cisco.com/13S72PTy2Rml5OEF_iEDV7rKCaavxBKyn_pl6E6oQ4EUXhX1_6qKg-e1A4cgN_l0OpDhC2DscFbCY3leEF1sHqRwew7U3TPE3WODHyfso_yeoaO07ihO3MSgTF9-GjvBaXFitfQMDQ4Ld0phjbKbFQkGh-ppi4KhxVNbYBhm4yuakMturryGz7TScAeXtjgk1xq-WMbNmrqXJn22s9FlGhiAAFQ0cNxZ-L9lECAmGhBFvuqRHQZfXRpODRW3tSwOvdvMH9_1_mI6L2vOURaVsTKsF1eqMwMxGgyWHQanmDX3F8LrM04vm550YeJw8T6VFGFjo7N6gAinq6hUY-NcNPQ/https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Fpub%2Fdist%2Ffreesurfer%2Fdev%2Fstable%2F https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/dev/stable/https://secure-web.cisco.com/13S72PTy2Rml5OEF_iEDV7rKCaavxBKyn_pl6E6oQ4EUXhX1_6qKg-e1A4cgN_l0OpDhC2DscFbCY3leEF1sHqRwew7U3TPE3WODHyfso_yeoaO07ihO3MSgTF9-GjvBaXFitfQMDQ4Ld0phjbKbFQkGh-ppi4KhxVNbYBhm4yuakMturryGz7TScAeXtjgk1xq-WMbNmrqXJn22s9FlGhiAAFQ0cNxZ-L9lECAmGhBFvuqRHQZfXRpODRW3tSwOvdvMH9_1_mI6L2vOURaVsTKsF1eqMwMxGgyWHQanmDX3F8LrM04vm550YeJw8T6VFGFjo7N6gAinq6hUY-NcNPQ/https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Fpub%2Fdist%2Ffreesurfer%2Fdev%2Fstable%2F.

Thanks, XS