Alpine Config

apk add haveged haveged-openrc
rc-update add haveged

# OpenRC init scripts
for svc in devfs dmesg hwdrivers mdev; do rc-update --quiet add $svc sysinit; done
for svc in killprocs mount-ro savecache; do rc-update --quiet add $svc shutdown; done
for svc in modules sysctl hostname bootmisc swclock syslog swap; do ln -s /etc/init.d/$svc /etc/runlevels/boot; done
for svc in haveged sshd local networking; do rc-update --quiet add $svc default; done

rc-update add networking default

rc-update add hwclock boot
rc-update add modules boot
rc-update add sysctl boot
rc-update add hostname boot
rc-update add bootmisc boot
rc-update add syslog boot

rc-service --exists network

apk add ca-certificates
update-ca-certificates

setup-ntp -c busybox

touch /etc/network/interfaces
mkdir /lib/modules

chroot /alpine

mount -t proc none /proc
/etc/init.d/devfs start
/etc/init.d/sysfs start

apk add dosfstools

auto lo
iface lo inet loopback

cat << EOF > /etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
EOF

touch /run/openrc/softlevel

apk add nano htop curl wget bash bash-completion
sed -i 's/\/bin\/ash/\/bin\/bash/g' /etc/passwd

qemu-system-arm -kernel armhf/boot/vmlinuz-rpi2 -initrd armhf/boot/initramfs-rpi2 -M raspi2 -serial stdio -dtb armhf/bcm2709-rpi-2-b.dtb -append "console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait" -sd target.img

qemu-system-arm -kernel armhf/boot/vmlinuz-rpi2 -initrd armhf/boot/initramfs-rpi2 -M raspi2 -serial stdio -dtb armhf/bcm2709-rpi-2-b.dtb -append "dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait" -sd target.img

# cmdline
dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait

echo -e 'brcmfmac' >> /etc/modules

qemu-system-aarch64 -kernel aarch64/boot/vmlinuz-rpi -initrd aarch64/boot/initramfs-rpi -M raspi3 -serial stdio -dtb aarch64/bcm2710-rpi-3-b.dtb -append "dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait" -sd demo-aarch64.img

nbd-client 192.168.1.100 10809 /dev/nbd0
nbd-client 192.168.1.100 9998 /dev/nbd1

qemu-storage-daemon \
  --blockdev driver=qcow2,node-name=test,file.filename=test.qcow2,file.locking=off,file.driver=file \
  --nbd-server addr.type=inet,addr.host=0.0.0.0,addr.port=6789 \
  --export nbd,device=test

qemu-nbd -f raw target.img -x target

modprobe nbd-client