ref: c3a430e6824a8f1f08f28a8df24b4b64266b06f9
dir: /sys/src/9/bcm/pi2/
dev root cons swap env pipe proc mnt srv shr dup arch tls cap fs bridge log ip arp chandial ip ipv6 ipaux iproute netlog nullmedium pktmedium inferno draw screen swcursor mouse mouse uart gpio gpio gpio sd usb link archbcm2 usbdwc ethermedium loopbackmedium netdevmedium ip tcp udp ipifc icmp icmp6 ipmux misc armv7 uartmini sdmmc emmc dma vcore vfp3 coproc irq port int cpuserver = 0; bootdir /$objtype/bin/paqfs /$objtype/bin/auth/factotum bootfs.paq boot