This task calls mix firmware & mix burn to burn a new firmware to a SDCard

Command line options

• --device <filename> - skip SDCard detection and write the image to the specified filename. SDCard paths depend on the operating system, but have a form like /dev/sdc or /dev/mmcblk0. You may also specify a filename to create an image that can be used with a bulk memory programmer or copied to an SDCard manually with a utility like dd.

• --task <name> - apply the specified fwup task. See the fwup.conf file that was used to create the firmware image for options. By convention, the complete task writes everything to the SDCard including bootloaders and application data partitions. The upgrade task only modifies the parts of the SDCard required to run the new software.

• --verbose - produce detailed output about release assembly

Environment variables

• NERVES_SYSTEM - may be set to a local directory to specify the Nerves system image that is used

• NERVES_TOOLCHAIN - may be set to a local directory to specify the Nerves toolchain (C/C++ crosscompiler) that is used

Examples

# Upgrade the contents of the SDCard at /dev/mmcblk0 using the rpi0 system
NERVES_SYSTEM=rpi0 mix firmware.burn --device /dev/mmcblk0 --task upgrade