#QEMU BOOT ISO PASSWORD#

admin should be granted sudo access without requirements for password.

admin should be create with the password packerubuntu (the encrypted password is created using openssl passwd -6 -salt xyz).

Describe which users need to be created:.Force change the password for the user called user1 through chpasswd.The cloud-init configuration above should do the following: user-data is the actual section where the Cloud-Init configuration takes place.Where the OS is and when should it be loaded We also define the sequence that tells the Boot Manager how it should setup the boot sequence.

#QEMU BOOT ISO INSTALL#

Here we install the Bootloader Manager ( efibootmgr). late-commands will be triggered at the end of the installation.Here we install qemu-guest-agent to help out packages will install some necessary packages on first-boot.

Install SSH Server and allow Password login (will be used by Packer).Keyboard locale to en_US and layout to US.The autoinstall is Ubuntu’s AutoInstall / Subiquity configuration section which will set: The above mentioned file does the following:

#QEMU BOOT ISO UPDATE#

#cloud-config autoinstall : version : 1 locale : en_US keyboard : layout : us ssh : install-server : true allow-pw : true packages : - qemu-guest-agent late-commands : - 'sudo apt update & sudo apt install -y efibootmgr' - 'sudo efibootmgr' - 'sudo efibootmgr -o 0007,0001,0000,0002,0003,0004,0005,0006' user-data : preserve_hostname : false hostname : packerubuntu package_upgrade : true timezone : Europe/Berlin chpasswd : expire : true list : - user1 :packerubuntu users : - name : admin passwd : $ 6$xyz$74AlwKA3Z5n2L6ujMzm/zQXHCluA4SRc2mBfO2/O5uUc2yM2n2tnbBMi/IVRLJuKwfjrLZjAT7agVfiK7arSy/ groups : lock-passwd : false sudo : ALL=(ALL) NOPASSWD :ALL shell : /bin/bash - name : user1 plain-txt-passwd : packerubuntu lock-passwd : false shell : /bin/bash

Setup the bootloader logic in order to quickly boot the ISO after the first-boot.

As a clarification, Ubuntu Live Server uses a toolĬalled Autoinstall / Subiquity Installer wherein Cloud-Init configuration is a subset.Īs previously mentioned, we will use this file to setup: The user-data file is where we will be add configuration that is needed for first boot. NOTE: The configurations used here will work for Ubuntu 20.04 LTS (Focal Fossa) as well as Ubuntu 22.04 (Jammy Jellyfish) Pre-Requisites You can use either the Cloud Images or Live-Server from Ubuntu depending on your use. We will use it to actually boot the ISO image, which Packer will download for us and use itĬustomize our Ubuntu Image. QEMU is one of the most renowned emulator.

Instead of writing really long commands in order to boot up the image using QEMU, Packer provided a nice Configuration Template in a more Hashicorp Packer provides a nice wrapper / abstraction over the QEMU in order to boot the image and use it to set it up on first-boot.

Set the Bootloader Sequence when trying to boot the Image using UEFI.

We will use Cloud-Init to create the following: It is a set of YAMLįiles that tells the image what needs to be done on the first-boot of the OS. Cloud-InitĬloud-Init is a standardized way to configure your Images without having to write shell scripts. Hashicorp’s Packer and QEMU (Quick Emulator).

#QEMU BOOT ISO HOW TO#

This post sheds light on how to create images using tools like Without having to write large Shell Scripts. In current times, you might want to spin up a customized, well-known Distribution like Ubuntu, Debian, CentOS etc.

NOTE: This post requires more than intermediate knowledge of the tools being used.

Qemu boot iso