Configuring Ratcheting for OEM Owned Software Components

Note

When performing a partial update, to ensure ratcheting of the software, update mb1-bct as well as the software.

Ratcheting helps detect and prevent rollback to earlier software versions. There is no self-enforced ratchet check available in OEM software components. Only the loader-enforced ratchet check is performed by the corresponding loader of the OEM firmware binaries.

The loader checks the firmware version in MB1_BCT with the firmware version in the BCH of the component. If the component version in BCH is less than one in MB1_BCT, the loader performs the recovery action.

For more details on matching criteria and recovery actions, see the Ratchet Check for OEM Owned Software Components section under Ratcheting in the Bootloader section.

• Updating the Configuration File