ref: e0cb81af9497c322d9656fec0201586f2428aad5
dir: /sys/src/9/bcm/pi2/
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 archbcm2 usbdwc 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