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docs: secondary slot magic is unset after update 

This description is needed to explain why MCUBoot won't
revert a recently performed update.

Signed-off-by: Håkon Øye Amundsen <haakon.amundsen@nordicsemi.no>
This commit is contained in:
Håkon Øye Amundsen 2020-03-04 08:52:31 +00:00 committed by Andrzej Puzdrowski
parent 11d91c34a3
commit cdf94c2623
1 changed files with 2 additions and 0 deletions
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docs/design.md
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@ -675,12 +675,14 @@ happened when a swap was requested:
o Write primary_slot.copy_done = 1 o Write primary_slot.copy_done = 1
(swap caused the following values to be written: (swap caused the following values to be written:
primary_slot.magic = BOOT_MAGIC primary_slot.magic = BOOT_MAGIC
secondary_slot.magic = UNSET
primary_slot.image_ok = Unset) primary_slot.image_ok = Unset)
* permanent: * permanent:
o Write primary_slot.copy_done = 1 o Write primary_slot.copy_done = 1
(swap caused the following values to be written: (swap caused the following values to be written:
primary_slot.magic = BOOT_MAGIC primary_slot.magic = BOOT_MAGIC
secondary_slot.magic = UNSET
primary_slot.image_ok = 0x01) primary_slot.image_ok = 0x01)
* revert: * revert: