ref: dca0b4bd8a145b59ceda4b2357de8d293da9cfcd
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