ref: a945c6f5b1f69b9bf7a6a3a5404b14b9fe6c5e5c
dir: /sys/src/9/bcm/pi/
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 archbcm usbdwc ethermedium loopbackmedium netdevmedium ip tcp udp ipifc icmp icmp6 ipmux misc armv6 uartmini sdmmc emmc dma vcore vfp3 coproc irq port int cpuserver = 0; bootdir /$objtype/bin/paqfs /$objtype/bin/auth/factotum bootfs.paq boot