docs/mynewt_faq/newt_faq.rst

Mynewt FAQ - Newt
=================

.. contents::
  :local:
  :depth: 1

Newt Commands: ``upgrade``, ``install``, ``sync``
-------------------------------------------------

**Q**: What’s the difference between ``newt upgrade``, ``newt install``, and ``newt sync``?

**A**: Only use ``newt upgrade``.  The other two commands (``install`` and ``sync``) are deprecated and will be removed soon.

``newt size`` Command vs. Elf File Size
---------------------------------------

**Q**: I did a test build of blinky for nrf52 and got an elf-file of size 295424 bytes. If I use the newt size command for 
the application it says something like: 18764 bytes. What does this mean?

**A**: Elfs have a lot of extra information. newt size will show the are in flash that is used which better matches the 
``blinky.elf.bin`` file. Try ``running newt -ldebug build -v <your-target>`` and you will see something like this: 

.. code-block:: console 

  arm-none-eabi-objcopy -R .bss -R .bss.core -R .bss.core.nz -O binary ...