Vitaliy Yermolenko vitali2y

U-Boot 2022.10-k1 (Nov 02 2025 - 09:53:07 +0000)

[   0.516] CPU:   rv64imafdcv
[   0.519] Model: spacemit k1-x deb1 board
[   0.523] DRAM:  DDR size = 8192 MB
[   0.526] DDR size = 8192 MB
[   0.529] DDR size = 8192 MB
[   0.532] 8 GiB
[   0.593] reset driver probe start

Install clean Ubuntu Server 25.04 from official Ubuntu sources on the OrangePi RV2

Introduction

I got a Orange Pi RV2 recently, and it only was supplied with a pre-build Ubuntu Server image from a Chinese website. I did not like that too much. It also used Chinese mirrors, and I prefer to have full control over my install. This guide shows you how to build / install Ubuntu Server 25.04 from the official RISCV Ubuntu install media and the provided kernel sources for the RV2.

Approach

Build kernel .deb files (using a Ubuntu 22.04 x86 VM)
Install Ubuntu 25.04 RISCV using a RISCV VM and a NVME drive that we will use with the RV2.
Install kernel deb files, manage the DTB properly, configure some needed stuff

REST API Cheat Sheet

REST Architectural Principles

Client-Server Architecture
- Strict separation of concerns
- Independent evolution of components
Statelessness
Complete context in requests

log2tsv.rs: aichat + llama-cpp + gemma-3n-E4B-it-GGUF

First terminal:

✗ grep -B 10 -A 3 gemma-3n ~/.config/aichat/config.yaml
  - type: openai-compatible
    name: local
    api_base: http://localhost:8000/v1
    api_key: ""
    # default_provider: local

[    0.000000] Linux version 6.6.63-ky (root@test) (riscv64-unknown-linux-gnu-gcc (g09b62c20e09) 13.2.1 20240423, GNU ld (GNU Binutils) 2.42) #1.0.0 SMP PREEMPT Wed Mar 12 09:04:00 CST 2025
[    0.000000] Machine model: ky x1 orangepi-rv2 board
[    0.000000] SBI specification v1.0 detected
[    0.000000] SBI implementation ID=0x1 Version=0x10003
[    0.000000] SBI IPI extension detected
[    0.000000] SBI RFENCE extension detected
[    0.000000] earlycon: sbi0 at I/O port 0x0 (options '')
[    0.000000] printk: bootconsole [sbi0] enabled
[    0.000000] efi: UEFI not found.

➜  nmap -sn 192.168.1.1-254/24 | egrep "scan report" | awk '{print $5}'
OpenWrt.lan
vernee_m6.lan
greenway.lan
192.168.1.147
➜

Open FB video (for example walking on the water), then:

open DevTools (F12), then Network tab, watch for calling two GET URLs one-by-one, each with .mp4 inside: first is video without audio, second is just audio (both you can Open in New Tab) - so do Copy As cURL for both, and execute them as below (assuming 1.mp4 and 1.mp3 for both video and audio correspondently):

IMPORTANT: it's required to remove 2 HTML params from the end of URLs: &bytestart=XXX&byteend=YYY!
```
curl --output 1.mp4 https://scontent.xx.fbcdn.net/o1/v/t2/f2/m69/AQO...Kq9.mp4\?strext\=1\&_nc_cat\=108\&_nc_sid\=...&oe\=679C6293
curl --output 1.mp3 https://scontent.xx.fbcdn.net/o1/v/t2/f2/m69/AQP...HqV.mp4\?strext\=1\&_nc_cat\=1\&_nc_sid\=&oe\=679C8E9F
```
merging downloaded 1.mp4 video and 1.mp3 audio into the final output.mp4 as below:

Below is a one liner example how to remove both <ins ... ></ins> and <script> ... </script> tags:

✗ ls *.html | xargs sed -i.bak -E '/<ins\b[^>]*>.*?<\/ins>/d; /<script\b[^>]*>.*?<\/script>/d'
✗ rg -in adsbygoogle * | more
✗ find . -type f -iname \*.html.bak -delete
✗

	#!/usr/bin/env bash

	#
	# Cross-compile lrzsz-0.12.21rc (lrz & lsz) for Orange Pi RV2 (RISC-V 64)
	#

	set -euo pipefail

	PRJ="lrzsz"
	LRZSZ_URL="https://github.com/UweOhse/${PRJ}.git"

	#!/bin/sh

	#
	# Orange Pi RV2 Router Setup Script @ Irradium (CRUX)
	# https://dl.irradium.org/irradium/images/orange_pi_rv2/
	#
	# Usage:
	# curl -fsSL <shorturl> > install.sh && sudo sh ./install.sh [wifi_ssid]
	#