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docs/05-storage-layout.md
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@@ -64,6 +64,12 @@ The layout still has shared parts. If an update damages the shared boot componen
Two slots on one storage device also do not protect against failure of that whole device.
The following diagram adds access responsibilities to the logical layout. A is running while the installer prepares B. Trial requests and confirmation use the platform's boot control interface.
![A/B storage areas and access responsibilities](../diagrams/rendered/ab-storage-layout.svg)
[PlantUML source](../diagrams/plantuml/ab-storage-layout.puml) · [Simulation of saved boot state across resets](../examples/simulations/ab-trial-boot/readme.md)
## 3. What Lives Outside the System Slots?
A system release provides common software. Device identity and calibration belong to an individual device. Installing a system image must not replace them with values from the release build.