Steve Hay stvhay

Setting Up VSCode Git Signatures

These are instructions to create an ssh-format developer key for signing git commits, and configuring this key to be used by default, and specifying defaults to apply this signature to all git commits.

Along with specifying an identity agent in ~/.ssh/config and SSH_AUTH_SOCK environment variable, this will cause VSCode to pass along obtaining your key decryption password to the system's identity agent.

These instructions have been tested on MacOSX with 1Password set as the identity agent.

Prompt

Describe a method in which one would use buildroot to create a multiarch root image supporting both ARM64 and ARMHF file execution. Explain in detail how one would use two toolchains within the same root device.

Response

Buildroot is a popular tool used for building embedded Linux systems via cross-compilation. To create a multiarch root image that supports both ARM64 (AArch64) and ARMHF (ARM Hard Float, 32-bit) file execution, you'll need to configure the system to use two separate toolchains and set up proper library paths to ensure smooth runtime execution. Here's a detailed explanation of how to achieve this:

Download and extract Buildroot:

BOX86/BOX64/WINEX86 TUTORIAL for ARM64 LINUX SYSTEMS by SALVADOR LIÈBANA (MICROLINUX)

Salvador Liébana

if you dont have armhf added by default like on armbian jammy, before installing the 32 bit armhf userspace libs you need to add armhf architecture first.

sudo dpkg --add-architecture armhf
sudo apt update

Indiedroid Nova Ubuntu Image

This image is a very minimal Ubuntu Jammy configuration that will probably require you to add software based on your needs. It should provide a good starting point for any use case needed.

https://static.st5ve.com/debian-image-builder/rk3588s-9tripod-linux-ubuntu-jammy-5.10.110-arm64-ext4-2023-02-23-1821.img.xz

Acknowledgements

c0rnelius and Tenkawa at https://github.com/pyavitz/debian-image-builder for the image building tool.

U-boot Environment

# Top Level boot command
bootcmd=run distro_bootcmd;boot_android ${devtype} ${devnum};boot_fit;bootrkp;

# Calls distro_bootcmd
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done

# Boot targets

Batocera Boot Image Dissection (Rockchip rk3588)

Image format

Partition Layout

The Batocera image is a compressed disk image (.img) file with gzip (.gz). The file is mounted to /dev/loop0 with losetup -P --show -f $image and sfdisk -d /dev/loop0 shows the following:

Hentzer

CPX 41

8 vCPU
16 GB RAM
240GB

| Lang-uage | Temp-lated | Check Time [us/fn] | Compile Time [us/fn] | Build Time [us/fn] | Run Time [us/fn] | Check RSS [kB/fn] | Build RSS [kB/fn] | Exec Version | Exec Path |

Installing Wii Sys/ Files

Get a copy of the project source code https://github.com/libretro/dolphin/archive/master.zip
Extract and find the Data/Sys subdirectory.
Copy this directory to /userdata/bios/dolphin-emu/Sys

	#!/bin/bash

	# get cover art using sacad. try only once.
	function get_cover_art() {
	local artist="$1"
	local album="$2"
	local dstdir="$3"

	local albumdir="${dstdir}/${artist}/${album}"
	local artfile="${albumdir}/${artist} - ${album}.png"

	#!/bin/bash
	typeset -A overlay kernel bsp

	defconfig="linux-defconfig-full.config"
	overlay=(
	[name]="overlay"
	[repo]="https://github.com/radxa/overlays.git"
	[commit]="main"
	)
	kernel=(