Recovery and factory reset

When a device needs a complete reset or cannot recover from a system fault automatically, JelinaOS provides Recovery capabilities to return it quickly to a usable state.

Recovery partition

Device storage includes a separate recovery partition for system repair and factory resets:

• Independent of system partitions and unaffected by system faults.
• Provides a standardized recovery process without specialist tools.
• Automates recovery to reduce manual operations.

Factory reset

A factory reset restores the system and user-written data to their factory state, as with a fresh installation.

Before you begin

• Back up important data first: A factory reset clears the system and user-written data.
• Confirm that recovery is necessary; try less disruptive measures such as update rollback first.
• Record the current configuration to simplify reconfiguration after recovery.

Recovery process

1. Back up data you need to retain.
2. Enter recovery by booting from the recovery partition.
3. Confirm the factory reset.
4. After the device resets, perform first-boot configuration again.

Automatic repair of system errors

JelinaOS disaster recovery includes automatic repair:

• Minor faults are handled automatically by restart policies and the watchdog.
• System-level faults are covered by automatic A/B switching.
• Recovery is the final option for complete resets or extreme cases.

When to use Recovery

Scenario	Recommended method
One application fails	Application restart policy / watchdog, automatic
A new version fails	Update rollback, automatic or manual
System configuration is inconsistent	Factory reset
Complete device delivery/handover	Factory reset
Severe system damage	Recovery

Related documentation

• A/B systems and switching — Partition-level fallback
• Watchdog — System health protection
• Storage and data partition — Backup recommendations