Refactor the README to make it easier to follow

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# Phyllome OS
> *Virtualization for the rest of us*
[Phyllome OS](#phyllome-os) is a [Fedora Remix](https://fedoraproject.org/wiki/Remix) designed to leverage [hardware-assisted virtualization](https://wiki.phyllo.me/virt/lexicon#hardware-assisted-virtualization) and [paravirtualization](https://wiki.phyllo.me/virt/lexicon#paravirtualization) to make it easier to run modern guest operating systems locally.
This is the **alpha version** of Phyllome OS. Expect bugs and disappointment.
Phyllome OS uses the kickstart installation method to deploy itself to a specific target.
> External contributions to Phyllome OS are welcome. Have a look [here](https://kanboard.phyllo.me/b/CH7qd98J2v7egmodk/development) for some ideas on what to do next, or feel free to create a GitHub issue and suggest an idea you wish to work on. Also, it might be good to skim through the [white-paper](https://files.phyllo.me/s/oYwfxYpZcbppwr6) to understand what it is about and what the project is trying to achieve.
[The kickstart installation method](https://pykickstart.readthedocs.io/en/latest/kickstart-docs.html#chapter-1-introduction) provides a way to configure and automate the installation of most [RPM-based distributions](https://en.wikipedia.org/wiki/Category:RPM-based_Linux_distributions), including [the official Fedora distributions](https://pagure.io/fedora-kickstarts) as well as Fedora Remixes like Phyllome OS.
*Phyllome OS is a [Fedora Remix](https://fedoraproject.org/wiki/Remix) based on [Fedora Server 35](https://getfedora.org/en/server/) designed to leverage hardware-assisted virtualization and paravirtualization to make it easier to run modern guest operating systems locally.*
This repository contains complete or partial kickstart files, [organized by folders](#the-content-of-this-repository).
## What is on the menu or the content of this repository
> Phyllome OS is in its ***alpha*** stage of development. Expect bugs and disappointment.
This repository contains snippets of code for the [multiple versions](https://wiki.phyllo.me/deploy/rightforyou#phyllome-os-versions) of Phyllome OS, and also a handful of other operating systems artefacts.
## Kickstarting Phyllome OS
Each version of Phyllome OS is like a ***dish*** that is based on a ***recipe*** that contains ***ingredients***. Dishes are stand-alone kickstart files. Kickstart files are used to automate the installation and configuration of RPM-based operating systems such as Phyllome OS, just as a recipe and its instructions can be used to create a dish.
Kickstarting Phyllome OS in a virtual machine (VM) using a kickstart file is a great way to test it out before using [burning the ISO](https://github.com/PhyllomeOS/phyllomeos/releases/tag/v.0.2.0-alpha) or commiting to [a bare-metal installation](https://wiki.phyllo.me/deploy/prepare).
* `ingredients`🥑 🥥 🥭 🥝 🥦 🥬 🥒 🧄...: this directory contains the basic building blocks, or ingredients, for assembling Phyllome OS and other derivatives.
* Each ingredient represents a feature or a set of integrated features, such as a Desktop Environment. Not all ingredients will end up in the final product, but that is okay to try and add new flavors!
* Feel free to add new ingredients here, such as another Desktop Environment or a new set of software.
* `recipes`🧾 🧩: this directory contains recipes, which are made of ingredients listed in a specific order.
* Everyone is free to create a new recipe based on new or existing ingredients.
* `dishes`🥨 🥐 🥖 🥧 🥞 🥯 🧆 🧁...: this directory contains the end-product in the form of stand-alone and ready-to-consume kickstart files, just like cooked dishes.
* When a new ingredient ends up in a dish, it should be tested before being committed to the repository. The total number of official dishes should not exceed a handful, to avoid the burden of testing too many dishes.
* `post-first-startup-scripts` : this directory contains scripts that are meant to be run manually by the user after a successful installation. This is like the topping of a dish.
* These code snippets will eventually be included inside existing building blocks, summoned as a systemd unit after a successful installation, or turned into RPM-packages.
* `img` : this directory contains screenshots of Phyllome OS used in the README file.
It is also the first step kickstart files.
*Developping Phyllome OS should feel like creating a new dish! 👩🏽‍🍳 🧑🏿‍🍳 *
* **Requirements:**
* An x86_64 platform with hardware-assisted virtualization [enabled](https://wiki.phyllo.me/deploy/prepare#enable-hardware-assisted-virtualization)
* A Linux distribution with a recent Linux kernel (> 5.X), such as Ubuntu 22.04 or Fedora 38
## How to hack Phyllome OS
### Initial steps
This readme contains contains the instructions to deploy Phyllome OS Desktop locally, inside a virtual machine, using a local kickstart file.
1. Enable **nested-virtualization**
> If you would like to install Phyllome OS on your computer instead, as a replacement of your current operating system, please follow [this guide](https://wiki.phyllo.me/deploy/prepare) instead.
As of now, hacking kickstart files is the main way to develop Phyllome OS.
Have a look [here](https://docs.fedoraproject.org/en-US/fedora/rawhide/install-guide/appendixes/Kickstart_Syntax_Reference/) to learn the kickstart syntax. You can also study the official kickstart for all Fedora versions [here](https://pagure.io/fedora-kickstarts/tree/main).
### Requirements
> Only Linux-based development is possible at the moment. Support for macOS and Windows-based development will follow.
* A Linux distribution, with a recent Linux Kernel (> 5.X)
* An x86_64 platform with hardware-assisted virtualization enabled.
* Follow [this guide](https://wiki.phyllo.me/deploy/prepare#enable-hardware-assisted-virtualization) to learn how to activate hardware-assisted virtualization on a supported platform.
* Nested-virtualization enabled (optional but better to have)
* `virt-install` and `virt-manager`, as well as `libvirt` and `qemu-kvm` up and running
#### Enable nested-virtualization
* **Enable** nested-virtualization on **AMD-based systems**, then reboot:
* On *AMD*-based systems:
```
sudo echo "options kvm_amd nested=1" >> /etc/modprobe.d/kvm.conf
# echo "options kvm_amd nested=1" >> /etc/modprobe.d/kvm.conf
```
* Verify that nested-virtualization is activated, using the following command, which should return a `1`:
* On *Intel*-based systems:
```
cat /sys/module/kvm_amd/parameters/nested
# echo "options kvm_intel nested=1" >> /etc/modprobe.d/kvm.conf`
```
* Then `reboot` and verify that nested-virtualization is activated, using the following command, which should return a `1` or `Y`:
* For *AMD*-based systems:
```
# cat /sys/module/kvm_amd/parameters/nested
1
```
**Enable** nested-virtualization on **Intel-based systems**, then reboot:
* For *Intel*-based systems:
```
sudo echo "options kvm_intel nested=1" >> /etc/modprobe.d/kvm.conf`
```
* Verify that nested-virtualization is activated, using the following command, which should return a `1`:
```
cat /sys/module/kvm_intel/parameters/nested
# cat /sys/module/kvm_intel/parameters/nested
1
```
#### Install the prerequisites on Fedora 35
2. Install dependencies
* For Fedora 35 and up
```
sudo dnf install -y qemu-kvm libvirt libvirt-daemon-config-network libvirt-daemon-kvm virt-install virt-top virt-manager libguestfs-tools python3-libguestfs guestfs-tools pykickstart
# dnf install -y qemu-kvm libvirt libvirt-daemon-config-network libvirt-daemon-kvm virt-install virt-top virt-manager libguestfs-tools python3-libguestfs guestfs-tools pykickstart wget
```
#### Install the prerequisites on Ubuntu 20.4 or Debian 11
```To be done```
### Hack around
Clone this repository:
* For Ubuntu 22.04
```
git clone https://github.com/PhyllomeOS/PhyllomeOS.git
# apt install qemu-kvm qemu-utils libvirt-daemon-system libvirt-clients bridge-utils virt-manager ovmf python-pykickstart wget
```
Modify some files, typically inside the `ingredients` directory, using your favorite editor.
Then, merge the kickstart basic building blocks or ingredients of the recipe into a single file, or dish. This process is called 'flattening'.
3. Add current user to the libvirt group
```
ksflatten -c virtual-desktop-hypervisor.cfg -o ../dishes/virtual-phyllome-desktop.cfg
# usermod -a -G libvirt $(whoami)
```
> If any errors are detected, go back and fix them.
### Kickstart Phyllome OS
When you are done, move to the `dishes` directory:
* Fetch the kickstart file optimized for deploying Phyllome OS in a virtual machine:
```
cd ../dishes
$ wget https://raw.githubusercontent.com/PhyllomeOS/phyllomeos/main/dishes/virtual-phyllome-desktop.cfg
```
### Fire it up!
The following command will read your flattened file and use it to automatically bootstrap your modified revision of Phyllome OS on a virtual machine with 2 vCPUs, 4 GB of RAM and a disk of 5 GB.
> Adjust it according to your need.
* Use `virt-install` alongside the previously downloaded kickstart file and use it to automatically bootstrap Phyllome OS on a virtual machine with 2 vCPUs, 4 GB of RAM and a disk of 5 GB (feel free to increase these values which satisfy the minimal requirements for Phyllome OS):
```
sudo virt-install \
# virt-install \
--connect qemu:///system \
--metadata description="Phyllome OS Desktop, generic edition" \
--metadata description="Phyllome OS Desktop, virtual edition" \
--os-variant detect=off \
--virt-type kvm \
--arch x86_64 \
@ -141,12 +108,12 @@ sudo virt-install \
--input type=keyboard,bus=virtio \
--input type=tablet,bus=virtio \
--rng /dev/urandom,model=virtio \
--disk path=~/.local/share/libvirt/images/virtual-phyllome-desktop.img,format=raw,bus=virtio,cache=writeback,size=5 \
--location=https://download.fedoraproject.org/pub/fedora/linux/releases/35/Everything/x86_64/os/ \
--disk path=/var/lib/libvirt/images/virtual-phyllome-desktop.img,format=raw,bus=virtio,cache=writeback,size=5 \
--location=https://download.fedoraproject.org/pub/fedora/linux/releases/38/Everything/x86_64/os/ \
--initrd-inject virtual-phyllome-desktop.cfg --extra-args "inst.ks=file:virtual-phyllome-desktop.cfg"
```
* The following message will appear, and the installation process will be launched behind the scenes:
You should see the following message:
```
Starting install...
Retrieving file vmlinuz... | 10 MB 00:00
@ -160,17 +127,133 @@ Allocating 'virtual-phyllome-desktop.img' | 5.0 GB 00:00
Domain is still running. Installation may be in progress.
You can reconnect to the console to complete the installation process.
```
The installation process will be launched behind the scenes. You can open `virt-manager` and connect to the virtual machine console to follow the process. Eventually, you will be greeted with this screen:
* Open `virt-manager` to view the virtual machine console to follow the process (**View** > **Console**). Eventually, you will be greeted with this screen:
![greetings](./img/greetings.png)
After you are done setting up your user account, `virt-manager` will automatically start:
* After you are done setting up your user account, `virt-manager` will automatically start:
![greetings](./img/desktop.png)
If the installation is successful and your feature is working as intended, you are welcome to create a pull request. Thank you!
* Provided that the virtual machine has enough resources, you can repeat the last steps to automatically deploy Phyllome OS inside Phyllome OS
## Phyllome OS
## The content of this repository
This repository contains snippets of code for the [multiple versions](https://wiki.phyllo.me/deploy/rightforyou#phyllome-os-versions) of Phyllome OS, and also a handful of other operating systems artefacts.
Each version of Phyllome OS is like a `dish` that is based on a `recipe` that lists `ingredients`.
* `ingredients`🥑 🥥 🥭 🥝 🥦 🥬 🥒 🧄...: this directory contains the basic building blocks, or ingredients, for assembling Phyllome OS and other derivatives.
* Each ingredient represents a feature or a set of integrated features, such as a particular Desktop Environment. Not all ingredients will end up in the final product, but that is okay to try and add new flavors!
* Feel free to add new ingredients here, such as another Desktop Environment or a new set of software.
* `recipes`🧾 🧩: this directory contains recipes, which are made of ingredients listed in a specific order.
* Everyone is free to create a new recipe based on new or existing ingredients.
* `dishes`🥨 🥐 🥖 🥧 🥞 🥯 🧆 🧁...: this directory contains the end-product in the form of stand-alone and ready-to-consume kickstart files, just like cooked dishes.
* When a new ingredient ends up in a dish, it should be tested before being committed to the repository. The total number of official dishes should not exceed a handful, to avoid the burden of testing too many dishes.
* `post-first-startup-scripts` : this directory contains scripts that are meant to be run manually by the user after a successful installation. This is like the topping of a dish.
* These code snippets will eventually be included inside existing building blocks, summoned as a systemd unit after a successful installation, or turned into RPM-packages.
* `img` : this directory contains screenshots of Phyllome OS used in the README file.
## Improve an existing or create your own OS artefact
Let's assume your want to add [Minetest](https://minetest.org/), a free and open-source sandbox video game, as an ingredient to a dish, so that you could deploy a virtual machine with this specific package:
* Clone this repository using `git`:
```
$ git clone https://github.com/PhyllomeOS/PhyllomeOS.git
```
* Make a copy of the `template.cfg` partial kickstart, and append `extra` to its name such as in `extra-minetest.cfg`:
```
$ cp ingredients/template.cfg ingredients/extra-minetest.cfg
```
* Add software `minetest` to your file:
```
$ nano ingredients/extra-minetest.cfg
```
```
# What ? This partial kickstart file provides the video game Minetest
%packages --exclude-weakdeps # Beginning of the packages section. Excludes weak package dependencies
minetest # a free and open-source sandbox video game
%end
```
* Pick a suitable recipe to add your ingredient to it. As Minetest is a GUI application, `virtual-desktop.cfg` is a fitting candidate. Make a copy of it.
```
$ cp recipes/virtual-desktop.cfg recipes/virtual-desktop-minetest.cfg
```
* Edit the file and add the newly defined ingredient:
```
$ nano recipes/virtual-desktop-minetest.cfg
```
```
%include ../ingredients/base-fedora-repo.cfg # offical repositories for Fedora
%include ../ingredients/base-storage.cfg # base storage
%include ../ingredients/base.cfg # A minimal machine
%include ../ingredients/base-desktop-gnome.cfg # A desktop environment
%include ../ingredients/base-guest-agents.cfg # Guest agents
%include ../ingredients/base-initial-setup-gnome.cfg # Includes initial-setup for GNOME Shell, allowing for the creation of a user after the first boot, as well as some basic configuration
%include ../ingredients/extra-minetest.cfg # A free and open-source sandbox video game
poweroff # Shut down the system after a successful installation
```
* Then, merge the kickstart basic building blocks a single file, or dish. This process is called 'flattening'.
```
$ ksflatten -c recipe/virtual-desktop-minetest.cfg -o ../dishes/virtual-desktop-minetest.cfg
```
> If any errors are detected, go back and fix them.
* You can then kickstart your own installation:
```
# virt-install \
--connect qemu:///system \
--metadata description="Phyllome OS Desktop, virtual edition" \
--os-variant detect=off \
--virt-type kvm \
--arch x86_64 \
--machine q35 \
--name virtual-desktop-minetest \
--boot uefi \
--cpu host-model,topology.sockets=1,topology.cores=2,topology.threads=1 \
--vcpus 2 \
--memory 4096 \
--video virtio \
--graphics spice,listen=none \
--channel spicevmc \
--autoconsole none \
--console pty,target.type=virtio \
--sound none \
--network type=user,model=virtio \
--controller type=virtio-serial \
--controller type=usb,model=none \
--controller type=scsi,model=virtio-scsi \
--input type=keyboard,bus=virtio \
--input type=tablet,bus=virtio \
--rng /dev/urandom,model=virtio \
--disk path=/var/lib/libvirt/images/virtual-phyllome-desktop.img,format=raw,bus=virtio,cache=writeback,size=5 \
--location=https://download.fedoraproject.org/pub/fedora/linux/releases/38/Everything/x86_64/os/ \
--initrd-inject virtual-desktop-minetest.cfg --extra-args "inst.ks=file:virtual-desktop-minetest.cfg"
```
## The goal of Phyllome OS
Phyllome OS goal is to maximize ease-of-use and compatibility. As such, it intends to become the easiest way to use modern operating systems locally, in a virtual machine, by integrating pertinent open-source software such as `libvirt`, `qemu-kvm` (and eventually `Cloud Hypervisor`), as well as `virt-manager`.
@ -180,23 +263,20 @@ Users should not have to manage Phyllome OS: they should be able to pick their f
### The Phyllome OS Project
> External contributions to Phyllome OS are welcome. Have a look [here](https://kanboard.phyllo.me/b/CH7qd98J2v7egmodk/development) for some ideas on what to do next, or feel free to create a GitHub issue and suggest an idea you wish to work on. Also, it might be good to skim through the [white-paper](https://files.phyllo.me/s/oYwfxYpZcbppwr6) to understand what it is about and what the project is trying to achieve.
The Phyllome OS Project relies on multiple tools, including the following public-facing tools:
* **Wiki**: Take a look at the [wiki repository](https://github.com/PhyllomeOS/wiki) for more information on how you can contribute to improving the documentation.
* **Issues tracker**: a public, read-only issue tracking is [available online](https://kanboard.phyllo.me/b/CH7qd98J2v7egmodk/development). From now on, GitHub issue tracking will be used to track development-only issues.
* **Code repository**: GitHub is used to host the code, with a mirror pointing to git.phyllo.me
* **Code repository**: GitHub is used to host the code
> The Phyllome OS Project is **looking for core contributors**, willing to contribute regularly to the project. If you are interested in making cutting-edge open-source virtualization more accessible, please send a message to contact@phyllo.me.
## Licenses
## License
* [MIT](./LICENSE.md) for the most part, alongside [GPL](./blocks-live/LICENSE.md) licensed code.
* [MIT](./LICENSE.md) for the most part, alongside [GPL](./blocks-live/LICENSE.md)-licensed code.
## Acknowledgement
Thanks to the main contributors of the official Fedora kickstart files repository, and related tools:
> Adam Miller, Bastien Nocera, Bruno Wolff III, Bryan Kearney, Chitlesh Goorah, Christoph Wickert,
Colin Walters, Fabian Affolter, Igor Pires Soares, Jens Petersen, Jeremy Katz, Jeroen van Meeuwen
Jesse Keating, Luya Tshimbalanga, Matthias Clasen, Pedro Silva, Rahul Sundaram, Sebastian Dziallas
Sebastian Vahl, wart. More information here : https://pagure.io/fedora-kickstarts
> Adam Miller, Bastien Nocera, Bruno Wolff III, Bryan Kearney, Chitlesh Goorah, Christoph Wickert, Colin Walters, Fabian Affolter, Igor Pires Soares, Jens Petersen, Jeremy Katz, Jeroen van Meeuwen Jesse Keating, Luya Tshimbalanga, Matthias Clasen, Pedro Silva, Rahul Sundaram, Sebastian Dziallas Sebastian Vahl, wart. More information here : https://pagure.io/fedora-kickstarts