yann@imperium:~/dev/snappy/1604/packages/images$ sudo  ./ubuntu-device-flash -v core -o paros.img --gadget=$PWD/../paros_gadget/paros_1.0_all.snap --kernel=$PWD/../paros_kernel/paros-kernel_3.10.67_arm64.snap  --os=../../xenial-preinstalled-core-armhf.os.snap  rolling
Determining gadget configuration
Partitioning...
Formatting...
Mounting...
Provisioning...
Installing /home/yann/dev/snappy/1604/packages/images/../paros_gadget/paros_1.0_all.snap
Unmounting...
/home/yann/dev/snappy/1604/packages/images/../paros_gadget/paros_1.0_all.snap failed to install: exit status 2