~ Felghana Archives ~
After regaining my memories in the land of Celceta, I feel rather at home with my newfound title of 'Adventurer.' Now that I've reunited with my old friend Dogi, it's been suggested that we venture to his homeland of Felghana, where he'd studied combat techniques in his youth under a master named Berhardt. As we headed northeast across Europe on the long road to this somewhat isolated, volcanic land, we stumbled upon a troupe of performers and decided to have our fortunes told. Little did we know how accurate the reading would be...
R Series Update Program V2 File
R Series Update Program v2 — Overview
Purpose: provide a robust, secure, and user-friendly update framework for the R Series device line that supports incremental feature delivery, OTA firmware and application updates, device analytics for reliability, and phased rollouts to minimize risk.
Key goals
- Secure end-to-end update delivery and verification
- Minimal downtime with atomic updates and rollback capability
- Scalable infrastructure for millions of devices
- Fine-grained rollout control and observability
- Developer workflow for packaging, signing, and releasing updates
- Backward compatibility and migration paths for older R Series versions
Key Definitions:
- R Series: A line of hardware modules characterized by ARM or RISC-V architectures, real-time operating systems (RTOS), or embedded Linux distributions. Common examples include R-Series industrial PLCs, R-Series mesh network nodes, and R-Series automotive telematics units.
- Update Program v2: The second major iteration of the update client, rebuilt from the ground up to address bandwidth limitations, security vulnerabilities (such as rollback attacks), and compatibility issues found in the original version (v1).
4. Technical Changes (v1 → v2)
| Component | v1 Baseline | v2 Update |
|-----------|-------------|-----------|
| Kernel version | 5.4.83 | 5.10.120 |
| Bootloader | U-Boot 2020.01 | U-Boot 2023.04 |
| Filesystem | SquashFS 4.0 | SquashFS 4.5 + dm-verity |
| Update mechanism | Full image only | Delta + full fallback |
| Fallback retention | 1 previous version | 2 previous versions |
| Secure boot | Disabled | Enabled (optional) | r series update program v2
New features enabled:
- Real-time telemetry reporting
- Configurable watchdog timer
- USB recovery mode (no JTAG required)
7. User & Field Feedback
- Positive (74% of surveyed units): “Boot time improvement is very noticeable.” “No more random resets.”
- Neutral (18%): “No change in daily operation.”
- Negative (8%): “Update failed on first attempt, required USB recovery.”
NPS (Net Promoter Score) for the update process itself: +62 R Series Update Program v2 — Overview Purpose: