tsmx-dev tsmx

Increasing the EFI partition in a Win 11 / Fedora 40 dual-boot scenario

A guide on how I did come to a proper working Win 11 / Fedora 40 dual boot setup with a right-sized EFI partition. Hope that helps :)

Windows and Linux dual-boot setup

In most Windows/Linux dual-boot setups it is very likely you had first installed Win 11 (or any other Windows version) on your machine. Typically you'll then shrink down the existing Windows partition from the right end side to create some unpartitioned space for the Linux installation. This could easily be done with Windows built-in harddisk manager tool. Then install Linux in the free space and use GRUB2 as the bootloader.

I previously did this procedure again on a new PC having Win 11 preinstalled. Made up some space as described above and installed Fedora 40 with GRUB2. Works like a charm.

Froggit weather station protocols for custom server

Example output and NodeJS server code snippet for a Froggit weather station when using an own custom server instead of predefined weather services.

My hardware:

WH3000SE sensor
DP1500 Dongle

Ecowitt protocol type

Sometimes an update of the kernel breaks your current grub2. You will see an error like /usr/bin/grub2-editenv: error: invalid environment block during execution of the update procedure.

In that case don't restart your machine because it is most likely that this will fail and then you'll have to fix it using chroot from a Live Media. Instead, immediately after the update showing up the error, fix it by executing the following as root:

dnf reinstall grub2-efi-x64 shim-x64
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

nginx as a proxy to avoid CORS during development

A simple setup for using nginx to avoid CORS errors during local development without the need of code changes.

Local dev situation

Let's assume you are developing a frontend and a backend service belonging together. It's a good practice to have those two projects separated to decouple development, deployment, patching etc.

At the end, both parts mostly would run under one domain but in different contexts, e.g.:

CounterFunc: functional React component for animated counting up using standard hooks

Small functional React component for counting numbers up to a certain value in a specified duration in ms. Useful for creating animated dashboards etc.

Uses React hooks useEffect, useState and useRef. Good example on how to pass props to a useEffect hook without declaring them as dependencies and how to deal with setInterval in functional components.

Usage

<CounterFunc countFrom={0} countTo={123} durationMs={400} />

Counter: React component for animated counting up

Small React component for counting numbers up to a certain value in a specified duration in ms. Useful for creating animated dashboards etc.

Usage

<Counter countFrom={0} countTo={123} durationMs={400}/>

	#!/bin/bash

	# Creates time series dummy data in a CSV with random hourly values.
	#
	# timeseries: array of name\|from\|to for the time series
	# -> name: name of the series (string)
	# -> from: lower limit of the hourly values (number)
	# -> to: upper limit of the hourly values (number)
	# amount: number of hourly values to create for each series, 24 for one complete day, 24*365 for a year etc.
	# startdate: date-time of the first hour

	# save as ./github/workflows/git-ci-build.yml
	# make sure that 'test-coverage' generates the coverage reports (lcov)

	name: git-ci-build

	on:
	[push]

	jobs:
	build:

	// In the example: sort descending by 'activeUsers' attribute of the value object

	var countries = new Map();

	countries.set('DE', { name: 'Germany', activeUsers: 15000 });
	countries.set('PL', { name: 'Poland', activeUsers: 13900 });
	countries.set('UK', { name: 'United Kingdom', activeUsers: 14500 });

	console.log('without iterator:');
	for (let [key, info] of countries) {

	var express = require("express");
	var app = express();

	const setMyInfo = (text) => {
	return (req, res, next) => {
	req.myInfo = text;
	next();
	};
	};