This fuse filesystem mirrors /srv by default.

Any directory ending in .volume should contain a file named "size" that contains the size of the volume.

  mkdir -p /srv/drive.volume /mnt/fused /mnt/inception

  echo "2147483648" > /srv/drive.volume/size   # 2gb

  ./cowfuse -oroot=/srv /mnt/fused

  mkfs.xfs -f /mnt/fused/drive.volume

  mount -o loop /mnt/fused/drive.volume /mnt/inception