Usage example on arm64 host:

sudo modprobe loop docker run --privileged -v $(pwd):/work --rm -it linaro/arm64-fai /bin/bash cd /work git clone http://git.linaro.org/ci/fai.git fai-diskimage -v --cspace $(pwd)/fai --hostname linaro-test -S 3G --class BUSTER,DEBIAN,DEVELOPER,LINARO,QCOM,DB410C,RAW linaro.raw 2>&1|tee fai.log

Gotchas: - loop devices need to exist before starting docker - order of classes matter - latter classes override variables from earlier ones - missing packages in packages from package_lists and errors while installing packages will not error the build out - grep the log for warnings and erros before proceeding