Paul 94v1c8

Add the following chunk to your existing ISC dhcpd.conf file.

if exists user-class and ( option user-class = "iPXE" ) {
    filename "http://boot.smidsrod.lan/boot.ipxe";
}
else {
    filename "undionly.kpxe";
}

(or see https://gist.github.com/4008017 for a more elaborate setup

Android fastboot flashing

Here are some instructions on how to successfully flash a new Android System Image.

Preparation

First download and extract the Android System Image that you want to flash. I'll be using hammerhead-mob30h, which is the May security update for my Nexus 5 (2013).

Extract the archive and enter the directory. You'll also want to extract the image-*.zip file as well (image-hammerhead-mob30h.zip in my case), which contains the other img files.

cd ~/Downloads/image-hammerhead-mob30h

Run commands on remote Docker host

This is how to connect to another host with your docker client, without modifying your local Docker installation or when you don't have a local Docker installation.

Enable Docker Remote API

First be sure to enable the Docker Remote API on the remote host.

This can easily be done with a container.
For HTTP connection use jarkt/docker-remote-api.

Electron apps

Slide deck frameworks supporting Markdown source

There's not a complete hook system designed in Bash when compared with other modern shells. PROMPT_COMMAND variable is used as a hook in Bash, which is equivalent to precmd hook in ZSH, fish_prompt in Fish. For the time being, ZSH is the only shell I've known that has a chpwd hook builtin.

PROMPT_COMMAND

If set, the value is interpreted as a command to execute before the printing of each primary prompt ($PS1).

https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#Bash-Variables

	ddns-update-style none;
	deny bootp; #default
	authoritative;

	include "/etc/dhcp/ipxe-option-space.conf";

	# GREEN (private network)
	subnet 10.1.1.0 netmask 255.255.255.0 {
	range 10.1.1.100 10.1.1.199;
	option subnet-mask 255.255.255.0;

	@echo off
	@title Microsoft Edge Uninstaller [Windows 10 LTSC 2021/21H1 Edition]
	ver

	echo+
	goto check_admin_permissions
	:check_admin_permissions
	echo Script must Run as Administrator! Detecting permissions...
	net session >nul 2>&1
	if %errorLevel% == 0 (

	# should works on any cloud-init enabled hypervisor (openstack.. )

	# start from a normal ubuntu 20.04 install as minimal was not available for ARM64
	# Since ARM64 machines has higher RAM, Shrinking is desired but not necessary. Instead we will increase tmpfs to 1700MB

	# Getting root (if sudo -i doesn't work then set a root password beforehand using 'sudo passwd root'

	sudo -i

	# make sure we are on the highest kernel, so we can delete all the others ...