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We support Rocky8 Linux now instead of CentOS8/RHEL 8. The Rocky8 installer may however work on RHEL 8. There is also a CentOS7 installer for Freesurfer 8.2.0 which could also work on RHEL 8,

https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/8.2.0/freesurfer-CentOS7-8.2.0-1.x86_64.rpm

- but we no longer support the CentOS7 installer.

There is a 8.2.0 docker file and an 8.0.0 singularity file for use with Rocky8 linux listed under,

https://github.com/pwighton/fs-docker/tree/master/freesurfer

If you want to use something newer than 8.0.0 with that singularity file, you could try editing that exiting 8.0.0 singularity file to instead use the 8.2.0 Rocky8 installer freesurfer-CentOS7-8.2.0-1.x86_64.rpm and likewise change all 8.0.0 entries to 8.2.0 in that file. You can download the Rocky8 8.2.0 installer from,

https://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/8.2.0/freesurfer-Rocky8-8.2.0-1.x86_64.rpm

Alternately if you search for "use dockerfile to create singularity image” you will find various ways to create a docker image from a docker container and and subsequently use the docker image to create a singularity image.

- R

On May 17, 2026, at 16:04, nooshin Safari <noonoosh91@gmail.com> wrote: