https://wiki.debian.org/sbuild http://blog.waja.info/2013/11/25/crossbuilding-debian-packages-with-sbuild-for-raspbian/
To CHANGE the golden image: sudo schroot -c source:rpi-jessie-armhf -u root To ENTER an image snapshot: schroot -c rpi-jessie-armhf To BUILD within a snapshot: sbuild -A -d rpi-jessie-armhf PACKAGE*.dsc