ref: 2d1235ebda5142fa86fa4e634c741cd852a2c2b2
dir: /sys/src/9/sgi/bootfs.proto/
$objtype bin awk auth secstore aux kbdfs bind cat chmod dd echo grep ip ipconfig ls mkdir mntgen mount mv ndb dnsgetip ps rc rm sed sleep srv test unmount xd rc lib rcmain net.rc 555 sys sys ../boot/net.rc bin bootrc 555 sys sys ../boot/bootrc tmp