The issue is the snapraid process is trying to create a lockfile in /var and your user doesn't have permissions to write there. You could chown those files to your user and get past that error message. Some underlying commands like snapraid smart won't work without elevated permissions.
The issue is the snapraid process is trying to create a lockfile in /var and your user doesn't have permissions to write there.
It's a permissions error. Are you trying to run snapraid as a non-root user (your user probably doesn't have permissions to write to /var)?
The one person that tried to help, you crapped on. No one else has documented it so far. Try it yourself, and share your findings.
The one person that tried to help, you crapped on. No one else has documented it so far. Try it yourself, and document your findings.
The one person that tried to help, you crapped on. Try it yourself, and document your findings.
Since this is a new build, have you run a memtest on the RAM to confirm that it's working properly? Faulty memory can cause all sorts of errors like these.
Great news! I am happy to help. Good luck on your journey to learning more about the great combination of SnapRAID and mergerfs!