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How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

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#!/usr/bin/env python

"""

Print (and write to JSON file) system information in a cross-platform manner.

Output contains information about platform, BIOS, CPU, memory, disk, GPU, network, peripheral devices, installed
packages, motherboard and users.

This script heavily relies on psutil and some other bash/powershell commands. See requirements.txt for dependency list.

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How do I dropdown?

This is how you dropdown.

<details>
<summary>How do I dropdown?</summary>
<br>
This is how you dropdown.

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#!/bin/zsh -e

cd ~/tmpfs
mkdir -p .lxc-root .lxc-data/etc .lxc-data/home/lilydjwg/{.vim,.cache} .lxc-work

sudo GDK_DPI_SCALE=$GDK_DPI_SCALE zsh -e - <<'EOF'
modprobe overlay
mountpoint .lxc-root || mount -t overlay -o lowerdir=/,upperdir=$PWD/.lxc-data,workdir=$PWD/.lxc-root overlayfs $PWD/.lxc-root

# .lxc-root/etc/resolv.conf is protected

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#!/bin/bash

# You must accept the Oracle Binary Code License
# http://www.oracle.com/technetwork/java/javase/terms/license/index.html
# usage: get_jdk.sh <ext> <jdk_version>
# ext: rpm
# jdk_version: default 8

ext=rpm
jdk_version=8

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Let's say you have an iOS project, and you want to use some external library, like AFNetworking. How do you integrate it?

With submodules

Add the project to your repo:

git submodule add git@github.com:AFNetworking/AFNetworking.git Vendor/AFNetworking

or something to that effect.

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Setup armv7h chroot under x86_64 host (Archlinux/Archlinuxarm biased)

Simple way to setup an arm chroot for building packages for your arm devices. This is an alternative to cross-compiling where you are limited to only linking against the libs in your toolchain.

Setup chroot-fs

You can store the chroot wherever you like. I choose to store it in a disk-image which I mount to my filesystem.

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#!/bin/bash

el_version="6"
kernel_major="2.6.32"
kernel_minor="279.5.1"
vz_major="042stab061"
vz_minor=".2"

echo "Fetching OpenVZ Repo..."
cd /etc/yum.repos.d

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Get the Release.key
https://getfedora.org/keys/obsolete.html

rpm --import /tmp/Release.key
or
rpm --import https://getfedora.org/static/FB4B18E6.txt

Enable the Fedora19 repo (NOTE: obsolete/archived)
vi /etc/yum.repos.d/f19.repo

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Occasionally we will deploy a virtual instance into our KVM infrastructure and realize after the fact that we need more local disk space available. This is the process we use to expand the disk image. This process assumes the following:

• You're using legacy disk partitions. The process for LVM is similar and I will describe that in another post.
• The partition you need to resize is the last partition on the disk.

This process will work with either a qcow2 or raw disk image. For