ref: 61ad24312b1f35fbdea73a93f1bde63181a18794
dir: /sys/src/9/bcm/pi/
dev root cons swap env pipe proc mnt srv shr dup arch ssl tls cap fs ip arp chandial ip ipv6 ipaux iproute netlog nullmedium pktmedium inferno draw screen swcursor mouse mouse uart gpio gpio gpio sd usb link loopbackmedium ethermedium archbcm usbdwc 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