ref: 2cbd4b6dfcb79a7a3ddb3f2f01f745a0f2d3a506 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