jacobranson

2022 Zephyrus G14 Fedora Silverblue Setup

GPU Naming

Most applications in Linux will report the names of the two GPUs as follows.

• Dimgrey Cavefish is dGPU
• Yellow Carp is iGPU

Boot Hotkeys

PeterMitrano

from io import BytesIO

from geometry_msgs.msg import Point

p = Point(x=2, y=4)
print(p)
buff = BytesIO()
p.serialize(buff)
serialized_bytes = buff.getvalue()

sloretz

Doing import std_msgs.msg.String or from std_msgs.msg import String imports a generated Python class.

Type support

The typesupport for the String type exists on a metaclass: String.__class__._TYPE_SUPPORT. This value starts as None. It later becomes a pycapsule (with no name) when someone calls String.__class__.__import_type_support__(). This is done in rclpy by check_for_type_support(msg_type). It's called by the Node in create_...(). Afterwards inside C code the function rclpy_common_get_type_support(pymsg_type). blindly assumes _TYPE_SUPPORT is a pycapsule.

kharandziuk

variable "bucket_name" {
  default     = "max-bucket-for-testing"
}

provider "aws" {
  region  = var.aws_region
  profile = var.aws_profile
}

resource "aws_s3_bucket" "artifacts" {

joelgallant

// GeneratedClient here is codegen-ed

#[tonic::async_trait]
impl TonicClient for GeneratedClient<Channel> {
    async fn try_connect(
        dest: tonic::transport::Endpoint,
    ) -> Result<Self, tonic::transport::Error> {
        GeneratedClient::connect(dest).await
    }
}

YashasSamaga

import cv2
import time

CONFIDENCE_THRESHOLD = 0.2
NMS_THRESHOLD = 0.4
COLORS = [(0, 255, 255), (255, 255, 0), (0, 255, 0), (255, 0, 0)]

class_names = []
with open("classes.txt", "r") as f:
    class_names = [cname.strip() for cname in f.readlines()]

raveenb

Connecting to an Android device over SSH

Initial Setup

Install Android App Termux from APKPure or AppStore. If the app exists, just delete and re-install it to get the latest version, The APK can be downloaded from https://apkpure.com/termux/com.termux/ Install the APK using by running

adb install ~/Downloads/Termux_v0.73_apkpure.com.apk

chriswayg

Cloud images in Proxmox

• Preparing Cloud-Init Templates
• Cloud-Init Support - Proxmox VE
• Proxmox VE Administration Guide

A script which automates these steps for multiple distros incl. CoreOS, CentOS, Arch and ALpine

• create-cloud-template.sh

Steps for creating an Ubuntu 18.04 cloud template

• Using a ready-to-use Ubuntu image

arno01

WORK IN PROGRESS

Docker on Android

Setup:

Samsung Galaxy Tab S5e SM-T720
Android Pie on Linux 4.9.112 (not rooted)
Termux

george-hawkins

QEMU arm64 cloud server emulation

This is basically a rehash of an original post on CNXSoft - all credit (particularly for the Virtio device arguments used below) belongs to the author of that piece.

Download the latest uefi1.img image. E.g. ubuntu-16.04-server-cloudimg-arm64-uefi1.img from https://cloud-images.ubuntu.com/releases/16.04/release/

Download the UEFI firmware image QEMU_EFI.fd from https://releases.linaro.org/components/kernel/uefi-linaro/latest/release/qemu64/

Determine your current username and get your current ssh public key: