Dear Pradeep, this issue has appeared several times already here. See following thread: https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg52560.html Antonin Skoch

Hello All, My $SUBJECTS_DIR is located on an external disk that was mounted and recon-all exited with errors at ln -s lh.white.preaparc.H lh.white.HI was not able to perform this operation with sudo as well 4172_vsl/surf$ sudo ln -s lh.white.preaparc.H lh.white.H ln: failed to create symbolic link 'lh.white.H': Operation not supported but cp works 4172_vsl/surf$ cp lh.white.preaparc.H lh.white.H has any one come across this problem and what is the best way to fix this? Thanks, Pradeep

Hello All,

My $SUBJECTS_DIR is located on an external disk that was mounted and recon-all exited with errors at ln -s lh.white.preaparc.H lh.white.HI was not able to perform this operation with sudo as well

4172_vsl/surf$ sudo ln -s lh.white.preaparc.H lh.white.H ln: failed to create symbolic link 'lh.white.H': Operation not supported

but cp works 4172_vsl/surf$ cp lh.white.preaparc.H lh.white.H

has any one come across this problem and what is the best way to fix this?

Thanks, Pradeep