96 lines
4.1 KiB
Markdown
96 lines
4.1 KiB
Markdown
---
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title: Key Terminology for BDYG18ProArmbianBuilder
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type: curated
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permalink: main/projects/d0abaf3f-da04-4dd4-a228-bacf68f44e8f/curated/key-terminology-for-bdyg18-pro-armbian-builder
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stable_id: 8b959860-e7f0-4c5d-b6e7-3d4a1443ecbb
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scope: project
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project_id: d0abaf3f-da04-4dd4-a228-bacf68f44e8f
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workspace_type: development
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usage_profile_id: null
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preference_context: development
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document_type: glossary
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revision: 1
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model_connection: Sub2API
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model_name: git-restore
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- git:tools/driver/DriverAssitant_v5.14/Driver/x64/win10/rockusb.inf
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- git:tools/rkdevtool/revision.txt
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job_cited_source_ids: []
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conflicts: []
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source_hash: 5fe39ad3a37421f812566dd39f89d4c28fc6078c8d39031dff10eb6eb8d72e00
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prompt_version: 2026-08-12.3
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schema_version: '3'
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curation_job_id: null
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created_at: '2026-08-08T10:02:28.908855+00:00'
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updated_at: '2026-09-23T15:03:41.449930+00:00'
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tags:
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- definitions
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- terms
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restored_from_commit: 6a6a895eafcca6052e81a14fca103a42635dd1c2
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---
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# Glossary
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| Term | Definition |
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|------|------------|
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| **Armbian** | Community‑maintained Debian‑based Linux distribution for ARM boards. |
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| **BDY‑G18‑Pro** | RK3568‑based router (8 GB DDR4, 256 GB eMMC, 32 MB SPI‑NOR, RTL8367S switch). |
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| **DTB** | Device Tree Blob – binary description of hardware passed to the kernel/bootloader. |
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| **FIT** | Flattened Image Tree – container format bundling SPL, U‑Boot, BL31, kernel, DTB. |
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| **SPL** | Secondary Program Loader (Rockchip MaskROM loads this from DDR). |
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| **U‑Boot** | Primary bootloader; stock version 2024.10 or custom mainline 2026.04. |
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| **SPI‑NOR** | 32‑MiB external flash used for SPL; write‑once in production. |
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| **eMMC** | On‑board 256 GiB storage used for root‑fs and kernel. |
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| **RTL8367S** | Realtek 5‑port DSA Ethernet switch integrated on the board. |
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| **TSO / GSO** | TCP / Generic Segmentation Offload – hardware feature disabled on this board. |
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| **Cubic** | TCP congestion control algorithm selected via `net.ipv4.tcp_congestion_control=cubic`. |
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| **syscon‑reboot‑mode** | DTB node that forces a clean reboot; added to fix power‑off hangs. |
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| **emergency‑reboot.shutdown** | Systemd shutdown script that triggers `sysrq b` hard reset. |
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| **Rockusb** | Windows kernel‑mode driver (v5.14) for Rockchip USB‑to‑UART/fastboot devices. |
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| **Rockchip Driver Installation Assistant** | Helper UI that installs Rockusb and optionally Rockchip ADB drivers on Windows. |
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| **RKDevTool** | GUI utility for flashing RK356x devices; supports storage switching, image flashing, and loader deployment. |
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| **ZRAM** | Compressed RAM block device used for `/var/log` in the Armbian image. |
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| **Docker cache volume** | Persistent Docker volume `armbian‑g18pro‑cache` (~19 GB) caching U‑Boot, kernel, ccache, etc. |
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| **KISS / YAGNI** | Design philosophy – Keep It Simple, Stupid; You Aren’t Gonna Need It. |
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| **Vaultwarden** | Self‑hosted password manager; only entry names are stored in the repo, never secret values. |
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---
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**Sources**
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- `aa3057ab-54c5-4ffc-ba85-c2f2396ee60c`
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- `ff34c6eb-6bba-41e5-9e43-ff80941fa823`
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- `bf88c265-4749-4c50-85bc-4bae25298cd5`
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- `adb3722a-51e7-4ec5-88cc-a95dc399a7a1`
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- `105b328f-4bda-4641-90a7-7282ef156316`
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- `3f91189b-11a1-45bb-8357-4f413dc1609d`
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- `13`
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- `14`
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- `15` |