[Freesurfer] Need admin rights to run FS on mac?

Hi,

This is Kumar. I am a grad student at the Dept of Biomedical Engineering, University of Florida.

I would like to bring to your notice a problem that I am facing when I am running FreeSurfer on my mac at the lab.

I am testing the freesurfer installation as documented on the Free Surfer Wiki. I was able to run the first few commands without an issue other than it saying

"cannot create.xdebug_tkmedit" but it ends up running well.

When I try to run the recon-all command, it says I do not have admin rights to make a directory and so I used "sudo" to boost the privileges. This time it says,

FREESURFER_HOME: Undefined Variable

Can you please help me in this regard?

Thank you.