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183 lines
8.6 KiB
Markdown
183 lines
8.6 KiB
Markdown
# Phyllome OS
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> Virtualization for the rest of us
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*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.*
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> This is the **alpha version** of Phyllome OS. Expect bugs and disappointment.
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> External contributions for 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 an issue and suggest an idea you wish to work on.
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> The Phyllome OS Project is **looking** for **core contributors**, willing to contribute regularly on the project. If you are interested about making cutting-edge open-source virtualization more accessible, please send an email to contact@phyllo.me.
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## What
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This repository contains the basic building blocks required for deploying [Phyllome OS](https://phyllo.me/) in a virtual machine, using kickstart files.
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Kickstart files are used to automate the installation and configuration of RPM-based operating systems.
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> If you would like to install Phyllome OS on your computer, please follow [this guide](https://wiki.phyllo.me/deploy/install) instead.
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### Structure of the repository
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* `blocks` : this directory contains the basic building blocks for assembling Phyllome OS Desktop and Phyllome OS Server.
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* This is where most of the development happens.
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* `blocks-live` : this directory contains the basic building blocks for creating a live medium for Phyllome OS.
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* The code in this directory usually lags behind what is found in the `blocks` directory.
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* Ideally, the `blocks` and `blocks-live` repository would be merged, and the number of blocks reduced, to avoid code duplication.
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* `leaves` : this directory contains the end product in the form of stand-alone and ready-to-use kickstart files.
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* For instance, the Phyllome OS Desktop version optimized for Intel(tm) CPUs and Intel(tm) graphics cards, refered internally as `flat-dhi`, is stored there (*d* stands for desktop, *h* for hypervisor and *i* for intel).
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* `post` : this directory contains scripts that are meant to be run after a successful installation, after Phyllome OS has started
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* Ideally, these code snippets will be merged with existing building blocks, or summoned as a systemd unit.
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## How to hack Phyllome OS
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> Only Linux-based development is possible at the moment, sorry. Support for macOS and Windows-based development will follow.
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As of now, hacking kickstart files is the main way to develop Phyllome OS.
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Have a look [here](https://docs.fedoraproject.org/en-US/fedora/rawhide/install-guide/appendixes/Kickstart_Syntax_Reference/) to learn the kickstart syntax.
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### Requirements
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* A Linux distribution, with a recent Linux Kernel (> 5.X)
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* A x86_64 platform with hardware-assisted virtualization [enabled](https://wiki.phyllo.me/deploy/prepare)
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* Nested-virtualization enabled
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* `virt-install` and `virt-manager`, as well as `libvirt` and `qemu-kvm` up and running
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**Enable** nested-virtualization on **AMD-based systems**, then reboot:
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```
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sudo echo "options kvm_amd nested=1" >> /etc/modprobe.d/kvm.conf
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```
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**Enable** nested-virtualization on **Intel-based systems**, then reboot:
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```
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sudo echo "options kvm_intel nested=1" >> /etc/modprobe.d/kvm.conf`
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```
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**Install the prerequisites on Fedora 35**
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```
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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
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```
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**Install the prerequisites on Ubuntu 20.4 or Debian 11**
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```To be done```
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### Hack around
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Clone this repository:
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```
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git clone https://github.com/PhyllomeOS/PhyllomeOS.git
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```
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Modify some files, typically inside the `blocks` directory.
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When you are done, move to the `flat` directory:
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```
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cd ./PhyllomeOS/flat/
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```
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Then, merge the kickstart basic building blocks into a single file, a process called flattening.
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```
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ksflatten -c ../blocks/dhi.cfg -o flat-dhi.cfg
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```
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If any error is detected, go back and fix them.
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### Fire it up!
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For testing purposes, Phyllome OS can be deployed inside a virtual machine, as a guest hypervisor.
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The following command will automatically deploy the alpha version of Phyllome OS, tuned for Intel CPUs and Intel graphics cards.
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It uses a Q35 virtual motherboard, a UEFI-based firmware, virtio-devices accross the board, 2 vCPUs, 4 GB of RAM and a disk of 5 GB.
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> Adjust it according to your need.
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When ready, copy and paste it to your terminal.
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```
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virt-install \
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--connect qemu:///system \
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--virt-type kvm \
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--arch x86_64 \
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--machine q35 \
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--name phyllome-alpha \
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--boot uefi \
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--cpu host-model,topology.sockets=1,topology.cores=2,topology.threads=1 \
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--vcpus 2 \
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--memory 4096 \
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--video virtio \
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--channel spicevmc \
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--autoconsole none \
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--sound none \
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--controller type=virtio-serial \
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--controller type=usb,model=none \
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--controller type=scsi,model=virtio-scsi \
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--network network=default,model=virtio \
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--input type=keyboard,bus=virtio \
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--input type=tablet,bus=virtio \
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--rng /dev/urandom,model=virtio \
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--disk path=/var/lib/libvirt/images/flat-dhi.img,format=raw,bus=virtio,cache=writeback,size=5 \
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--location=https://download.fedoraproject.org/pub/fedora/linux/releases/35/Everything/x86_64/os/ \
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--initrd-inject flat-dhi.cfg --extra-args "inst.ks=file:flat-dhi.cfg"
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```
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You should see the following message.
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```
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Starting install...
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Retrieving file vmlinuz... | 10 MB 00:00
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Retrieving file initrd.img... | 79 MB 00:02
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Allocating 'virtinst-inlu7cmw-vmlinuz' | 10 MB 00:00
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Transferring virtinst-inlu7cmw-vmlinuz | 10 MB 00:00
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Allocating 'virtinst-2dd8ghse-initrd.img' | 79 MB 00:00
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Transferring virtinst-2dd8ghse-initrd.img | 79 MB 00:01
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Allocating 'flat-dhi.img' | 5.0 GB 00:00
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Domain is still running. Installation may be in progress.
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You can reconnect to the console to complete the installation process.
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```
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The installation process will be launched behind the scene. You can open `virt-manager` and connect to the virtual machine console to follow the process. Eventually, you will be greeted with this screen:
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![greetings](./img/greetings.png)
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After you are done setting your user account, `virt-manager` will automatically start:
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![greetings](./img/desktop.png)
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If the installation is a success and your feature is working as intended, you are welcome to create a pull request. Thank you!
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## Phyllome OS
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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`.
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A user should not have to manage Phyllome OS: it should be able to pick its favorite operating system and Phyllome OS should run it, no question asked.
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> Note : at the exception of open-source [Darwin derivatives](https://en.wikipedia.org/wiki/Darwin_(operating_system)#Derived_projects), Phyllome OS **strongly** discourage users from running proprietary, darwin-based derivatives on non-Apple hardware.
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### The Phyllome OS Project
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The Phyllome OS Project relies on multiple tools, including the following public-facing tools:
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* **Wiki**: Have a look at the [wiki repository](https://github.com/PhyllomeOS/wiki) for more information on how you can contribute to improve the documentation.
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* **Issues tracker**: a public, read-only issue tracking is [available online](https://kanboard.phyllo.me/b/CH7qd98J2v7egmodk/development). For now one, GitHub issue tracking will be used to track development only issues.
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* **Code repository**: GitHub is used to host the code, with a mirror pointing to git.phyllo.me
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## Licence
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* [MIT](./LICENSE.md) for the most part, with some [GPL](./blocks-live/LICENSE.md) code.
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## Acknowledgement
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Thanks to the main contributors of the official Fedora kickstart files repository, and related tools:
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> Adam Miller, Bastien Nocera, Bruno Wolff III, Bryan Kearney, Chitlesh Goorah, Christoph Wickert,
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Colin Walters, Fabian Affolter, Igor Pires Soares, Jens Petersen, Jeremy Katz, Jeroen van Meeuwen
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Jesse Keating, Luya Tshimbalanga, Matthias Clasen, Pedro Silva, Rahul Sundaram, Sebastian Dziallas
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Sebastian Vahl, wart. More information here : https://pagure.io/fedora-kickstarts
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