ref: 21d7790b3b0dde7f2a641d8815f66dec5cef6d2c dir: /sys/src/9/boot/disk.proto/
$objtype bin 9660srv cfs cwfs64x disk cryptsetup edisk fdisk prep dossrv gefs hjfs rc lib local.rc 555 sys sys ../boot/local.rc bin fstype diskparts