ref: 7e3a4b9cfc50c4fc11ab20f5e736a8a468b6f0ad 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