Jacob Vallejo jahkeup

Custom Boot Objects in Virtualization Framework macOS Guest VMs

By default, "custom boot objects" (created using kmutil create) can't be used in macOS Virtualization framework guest VMs. Here I show how to get around this Apple design flaw. Note that Virtualization framework macOS guests can only be created on Apple Silicon Macs.

To proceed, you'll need to work through my Running Third Party Kernel Extensions on Virtualization Framework macOS Guest VMs. Many

Use previous/older SDKs with Xcode

Since monterey update does not allow us to use Xcode previous than 13, let's show how to "install previous SDKs"

Needed

Swift toolchains, from https://swift.org/download/

Previous Xcode.xip, from the https://developer.apple.com

Simple vsock setup for QEMU

Configuration

Host Kernel: rawhide 4.13.0-0.rc6.git4.2.fc28.x86_64 (on Fedora 24)

QEMU is mainline built from sources: QEMU emulator version 2.10.50 (v2.10.0-105-g223cd0e)

Guest: clear-17460-kvm.img (which has vsock support)

Nix seems perfect for developers - until I try to use it...

Want to use Nix for development but you're not sure how? Concerned about the fluidity of nixpkgs channels or not being able to easily install arbitrary package versions?

When I first heard about Nix it seemed like the perfect tool for a developer. When I tried to actually use it for developing and deploying web apps, though, the pieces just didn't seem to add up.

	#!/bin/bash
	#set -euo pipefail
	#IFS=$'\n\t'

	# https://stream.lib.utah.edu/index.php?c=browse&m=results&q=Mac+Admins&sort=newest
	# https://macos-defaults.com/
	# https://ss64.com/mac/defaults.html
	# https://real-world-systems.com/docs/defaults.1.html
	#
	# https://babodee.wordpress.com/2016/04/09/launchctl-2-0-syntax/


	# MacOS smartcard

	List tokens available in the system

	pluginkit -m -p com.apple.ctk-tokens

	ex: com.apple.CryptoTokenKit.setoken(1.0)
	com.apple.CryptoTokenKit.pivtoken(1.0)

	package main

	import (
	"context"
	"fmt"
	"io/ioutil"
	"os"

	"github.com/containerd/containerd/content/local"
	"github.com/containerd/containerd/images"

	FROM atlashealth/ruby:2.1.2

	ENV DEBIAN_FRONTEND noninteractive

	# Install any dependencies needed by Rails
	RUN apt-get update -q && \
	apt-get install -qy curl libpq-dev libqt4-dev xvfb imagemagick --no-install-recommends && \

	# install Node for asset minification
	curl -sL https://deb.nodesource.com/setup \| bash - && \

	Please read original blog post for reference:
	http://blog.process-one.net/embedding-ejabberd-into-an-elixir-phoenix-web-application/