ref: c881e33e8ed668f4d5a2102c113e3edb1ea80d44
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