pibox installer dies at the installation because of a SSL error
On OSX
extract pibox-installer-vexpress-boot/zImage
extract pibox-installer-vexpress-boot/vexpress-v2p-ca9.dtb
get raspbian-lite image
download https://downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2017-03-03/2017-03-02-raspbian-jessie-lite.zip
failed
<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645)>