ref: fe91fdbedd67e820d2e9d2ded611c81c84ea4f17
dir: /sys/src/9/port/bootfs.proto/
$objtype bin 9660srv awk aux kbdfs bind cat cfs cryptsetup dd disk fdisk kfs prep dossrv echo cwfs64x grep ip ipconfig ls mkdir mntgen mount mv rc rm sed sleep srv test unmount nusb usbd disk kb xd rc lib rcmain local.rc 555 sys sys ../boot/local.rc tcp.rc 555 sys sys ../boot/tcp.rc bin fstype diskparts nusbrc 555 sys sys ../boot/nusbrc bootrc 555 sys sys ../boot/bootrc tmp