ref: a8f8de1cdeec7f9bee287c137b576e0249e8df82
dir: /sys/src/9/ppc/ucu/
dev root cons env pipe proc mnt srv dup ssl cap kprof uart ether netif ip arp chandial ip ipv6 ipaux iproute netif netlog nullmedium pktmedium ptclbsum inferno ce link ethersaturn ethermedium netdevmedium misc uartsaturn saturntimer msaturn ip tcp udp ipifc icmp icmp6 port int cpuserver = 1; boot cpu tcp bootdir /power/bin/rc /rc/lib/rcmain /power/bin/bind /power/bin/sed /power/bin/srv /power/bin/cat /power/bin/cp /power/bin/rm /power/bin/echo /power/bin/mount /power/bin/sleep /power/bin/auth/factotum /power/bin/ip/ipconfig /power/bin/ls /power/bin/ps /power/bin/auth/wrkey /sys/lib/sysconfig/blast/boot