Enno Gröper egroeper

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

	# -- coding: utf-8 --
	# Author: Douglas Creager <[email protected]>
	# This file is placed into the public domain.

	# Calculates the current version number. If possible, this is the
	# output of “git describe”, modified to conform to the versioning
	# scheme that setuptools uses. If “git describe” returns an error
	# (most likely because we're in an unpacked copy of a release tarball,
	# rather than in a git working copy), then we fall back on reading the
	# contents of the RELEASE-VERSION file.

	## Install necessary packages
	$ sudo apt-get install virtualbox-ose qemu-utils genisoimage cloud-utils

	## get kvm unloaded so virtualbox can load
	$ sudo modprobe -r kvm_amd kvm_intel
	$ sudo service virtualbox stop
	$ sudo service virtualbox start

	## URL to most recent cloud image of 12.04
	$ img_url="http://cloud-images.ubuntu.com/server/releases/12.04/release"

	# NOTE: These patterns take into account the additional log-line information passed to the logstash listener from rsyslog. YMMV.

	DHCPD ((%{SYSLOGTIMESTAMP:timestamp})\s(%{HOSTNAME:hostname})\sdhcpd\S+\s(%{WORD:dhcp_action})?.[for\|on] (%{IPV4:dhcp_client_ip})?.[from\|to] (%{COMMONMAC:dhcp_client_mac})?.via (%{USERNAME:interface}))
	IPTABLES ((%{SYSLOGTIMESTAMP:nf_timestamp})\s(%{HOSTNAME:nf_host})\skernel\S+\s(%{WORD:nf_action})?.IN=(%{USERNAME:nf_in_interface})?.OUT=(%{USERNAME:nf_out_interface})?.MAC=(%{COMMONMAC:nf_dst_mac}):(%{COMMONMAC:nf_src_mac})?.SRC=(%{IPV4:nf_src_ip}).DST=(%{IPV4:nf_dst_ip}).PROTO=(%{WORD:nf_protocol}).?SPT=(%{INT:nf_src_port}?.DPT=%{INT:nf_dst_port}?.))
	DNS ((%{MONTHDAY:day})-(%{MONTH:month})-(%{YEAR:year}) (%{TIME:timestamp}) client (%{IPV4:dns_client_ip})#(%{NONNEGINT:dns_uuid})?.query: (%{HOSTNAME:dns_dest}) (%{WORD:dns_type}) (%{WORD:dns_record})?.(%{IPV4:dns_server}))
	PGSQL ((%{SYSLOGTIMESTAMP:pgsql_timestamp}) (%{HOSTNAME:pgsql_hostname})?.*SAST >(%{WORD:pgs

	#!/usr/bin/env bash

	declare -A vm_ip
	declare -A vm_id
	declare -A vm_status

	while read -r _ id _ name _ ip _ ; do
	ip=$(echo $ip\|cut -d'=' -f2)
	vm_ip[$name]=$ip
	vm_id[$name]=$id

	#!/bin/bash

	sudo apt-get install -qqy ethtool libgraph-easy-perl graphviz > /dev/null

	EXCEPT=/tmp/exceptlist
	echo '' > $EXCEPT
	result=""

	function on_exit() {
	rm -f $EXCEPT

	# Script to create admin and administrator user

	#!/bin/bash
	IPs=`echo 86.50.1.{150..168}`

	for ip in $IPs
	do
	echo Starting $ip
	sshpass -p 'ROOTPWD' ssh -o StrictHostKeyChecking=no -l root $ip "create /map1/accounts1 username=Administrator password=ADMINISTRATORPWD name=Administrator group=admin,config,oemhp_rc,oemhp_power,oemhp_vm"
	sshpass -p 'ROOTPWD' ssh -o StrictHostKeyChecking=no -l root $ip "create /map1/accounts1 username=admin password=ADMINPASSWORD name=admin group=admin,config,oemhp_rc,oemhp_power,oemhp_vm"

	# NOTE
	#
	# Eduroam settings are organization-specific.
	#
	# If something works with *@foobar.edu, that _does_not_mean_ the same
	# settings automatically work elsewhere.
	#
	# Fortunately, most sites use very similar settings – password logins via
	# PEAP or TTLS. That's what this example covers.
	#

	# Add this snippet to the top of your playbook.
	# It will install python2 if missing (but checks first so no expensive repeated apt updates)
	# [email protected]

	- hosts: all
	gather_facts: False

	tasks:
	- name: install python 2
	raw: test -e /usr/bin/python \|\| (apt -y update && apt install -y python-minimal)

	#!/bin/bash
	# Copyright 2016, Rackspace US, Inc.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software