ref: 78e2f69c0d7e4c17227e1ec0545cbb2a0ae1e96e dir: /sys/src/cmd/aux/flashfs/mkit/
#!/bin/rc echo 0 0 0 0 0 16 16384 > fs.filectl 8.mkflashfs -n 16 -z 16384 -f fs.file