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Re-wording of ATOMIC_FS_UPDATE documenation (#6693)

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Peter 2019-11-01 03:04:22 +10:00 committed by Earle F. Philhower, III
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doc/ota_updates/readme.rst
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@ -646,7 +646,7 @@ Update process - memory view
- the new sketch is now copied "over" the old one.
- the new sketch is started.
By default, filesystem updates are overriding the target flash directly. In order to use the same two step process set the `ATOMIC_FS_UPDATE` flag.
By default, OTA filesystem updates overwrite the target flash directly. This can lead to the file system being corrupted if there is a power outage during the update process. In order to use the same two step process that is used for OTA application firmware updates, set the `ATOMIC_FS_UPDATE` flag. Note that you will need to have enough unused space for the new filesystem image to be stored, hence is why this is not the default behaviour.
.. figure:: update_memory_copy.png
:alt: Memory layout for OTA updates