I wrote my backup script to automatically combine two external drives into one with mergerfs so I could use the whole thing as a destination directory for rdiff-backup. However, when I tried to run it recently I get the error:
fuse: unknown option `threads=2'
The "threads" option appears in the man pages so I'm not sure what I'm missing here. For reference this is my current mergerfs command that's failing:
mergerfs -o use_ino,category.create=mfs,threads=2 ...