ref: 6fc0e0541c6f27dcb4c6196eab5badedf49c01c8
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 tlsclient unmount xd rc lib rcmain net.rc 555 sys sys ../boot/net.rc bin srvtls bootrc 555 sys sys ../boot/bootrc tmp