ref: a5488ad1e64e34f8a2f2e604ca5bcd2a0b750f67
dir: /sys/src/9/mtx/mtx/
dev root cons arch pnp pci env pipe proc mnt srv dup ssl cap kprof uart rtc ether netif ip arp chandial ip ipv6 ipaux iproute netif netlog nullmedium pktmedium ptclbsum inferno link ether2114x pci ethermedium netdevmedium misc uarti8250 ip tcp udp ipifc icmp icmp6 port int cpuserver = 0; boot tcp bootdir bootmtx.out boot /power/bin/ip/ipconfig /power/bin/auth/factotum