ref: 5e2071caecc32e4c5ff3ee9e0c7ac3cd13bd43c6 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