berlin4apk

hardware/software

Webcam parts:

Raspberry Pi Zero W Rev 1.1
Raspberry Pi Camera v2 (8-megapixel)
Raspberry Pi High Quality Camera (12.3-megapixel)
Raspbian Buster Lite 2020-02-13

Webcam works with:

Windows 10
Windows 10 "Camera" app

I have a box running Fedora, which runs a bunch of VMs. I want to iPXE boot using a larger ipxe script than is allowed by the ipxe that is embedded in qemu's virtual nic. That is, a VM is booting with iPXE but not the right ipxe.

Let's consider two VMs, debian10 and debian-live-ipxe. The DHCP server is running debian10, the other is pxe booting.

The procedure followed is roughly:

Grab the .tar.gz from the manta directory mentioned by /Joyent_Dev/public/builds/ipxe/master-latest.

Copy boot/undionly.kpxe from that archive to /tftpboot/.

1. Install tools and config IPXE

# Install compiler and dependencies
sudo apt-get install -y git gcc make liblzma-dev

# Grab the source code
git clone https://github.com/ipxe/ipxe.git
cd ipxe/src

# Enable NFS support

Setting up Qemu with a tap interface

There are two parts to networking within QEMU:

The virtual network device that is provided to the guest (e.g. a PCI network card).
The network backend that interacts with the emulated NIC (e.g. puts packets onto the host's network).

Example: User mode network

Gmail and GitHub

How to filter emails from GitHub in Gmail and flag them with labels.

The labels in this document are just examples.

Pull Request

Filter	Label

Making a UEFI bootable iPXE USB drive

Build the UEFI executable for iPXE

# First we'll clone iPXE
$ git clone git://git.ipxe.org/ipxe.git
# Go into the src directory of the cloned git repo
$ cd ipxe/src
# Compile the UEFI iPXE executable

Squashing Git Commits

The easy and flexible way

This method avoids merge conflicts if you have periodically pulled master into your branch. It also gives you the opportunity to squash into more than 1 commit, or to re-arrange your code into completely different commits (e.g. if you ended up working on three different features but the commits were not consecutive).

Note: You cannot use this method if you intend to open a pull request to merge your feature branch. This method requires committing directly to master.

Switch to the master branch and make sure you are up to date:

	#!/bin/bash

	set -e

	for d in `docker ps -a \| awk '{print $1}' \| tail -n +2`; do
	d_name=`docker inspect -f {{.Name}} $d`
	echo "========================================================="
	echo "$d_name ($d) volumes:"

	VOLUME_IDS=$(docker inspect -f "{{.Config.Volumes}}" $d)

	#!/usr/bin/env bash
	# Sets proxy settings.
	# Run using `source` command. apt-get proxy settings requires sudo privileges.
	# By nathanchrs.

	# Configuration

	# PROXY_HOST=""
	# PROXY_USER=""
	# PROXY_PASSWORD=""

	#!/bin/sh

	# To the extent possible under law, Viktor Szakats
	# has waived all copyright and related or neighboring rights to this
	# script.
	# CC0 - https://creativecommons.org/publicdomain/zero/1.0/
	# SPDX-License-Identifier: CC0-1.0

	# shellcheck disable=SC3040,SC2039
	set -o errexit -o nounset; [ -n "${BASH:-}${ZSH_NAME:-}" ] && set -o pipefail