Slide 13
Slide 13 text
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It is important to note that in order to generate a firmware patch file, you
will need to supply two full firmware update files, the firmware that the
target is updating from (currently running) and the firmware the device
will be updating to (the desired new firmware). Attempting to apply a
firmware patch to a target that is not running the "from" firmware will
result in returning an error when attempting to apply it.
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mix firmware.patchͷҙʢ1ʣ
※: https://hexdocs.pm/nerves/experimental-features.html#firmware-patches