ref: 1ae5fc01a6e9c6fb1a1befd4c60653a6af10a9e0
dir: /sys/src/9/xen/xenpcf/
dev root netif cons swap uart arch env pipe proc mnt srv shr dup rtc tls cap kprof fs xenstore ether netif ip arp chandial ip ipv6 ipaux iproute netlog nullmedium pktmedium inferno sd link etherxen ethermedium netdevmedium loopbackmedium misc archxen sdxen uartxen ip tcp udp rudp ipifc icmp icmp6 igmp gre ipmux esp il port int cpuserver = 0; bootdir /$objtype/bin/paqfs /$objtype/bin/auth/factotum bootfs.paq boot xenstore