ref: faee6c5f1da7a6fc03aa9da4dd9ff2f02e3f1d37 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