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BirbOS

BirbOS is a GNU/Linux distribution mostly based on the Linux From Scratch project. The installation process is automated though, so no worries, you don't have to go through LFS manually to get this thing installed :P

There are no stage-3 tarballs available and everything is compiled from the ground up, so make sure you have enough time in your hands if you decide to install BirbOS on your computers. It is impossible to give any time estimates, but simply saying that the installation involves compiling gcc thrice should give some direction.

Warning If you plan on installing BirbOS, please read the Disclaimer chapter carefully. Installing BirbOS will make changes to your host distro and there's a risk for data loss if you are not careful

Table of contents

Disclaimer

This is a learning project at most and shouldn't be relied upon as a production ready distro! If you want similar, but a smoother and way better Linux desktop experience, please use Gentoo instead.

During the installation, there will be modifications to the host distribution, so be careful. Here are some of the changes that will be made:

  • A new user account "lfs" will be created and used to build the BirbOS installation
  • A partition defined in the installation config file will be formatted with ext4 and mounted to /mnt/lfs (the /mnt/lfs directory will be created during the installation)
  • Possibly changes to the /boot partition to make the installation bootable

There might be some other changes too that I'm forgetting, but these should be the major ones. If you are unsure about the safety of your files, please use a virtual machine and/or take good backups.

Related projects

  • birb - Package manager
  • birb-utils - Miscellaneous utility scripts and programs made for BirbOS

Features

These are the main "goals" of this project:

  • A custom package manager called birb
  • 32-bit support. I want muh Steam games to work
  • Support for Nvidia gpus and possibly hybrid graphics for laptops.
  • Full X11 desktop with dwm
  • Full Wayland desktop with dwl
    • Wayland alternatives for basic stuff like image viewers, terminal emulators...
  • Enough packages in repos to get school work done
  • Wine, Lutris and Steam for windows gaming
  • (Bonus) A way to re-install the system in a somewhat reproducible way

As for games ATM, the Steam launcher is in the core repository and works for the most part, as in you can download games etc. The games won't launch, but you should be able to launch the games manually. This obviously won't work with windows games though

Installation

The installation is mostly guided with instructions shown in the installation script output. There shouldn't be any user intervention required during the installation other than what the scripts tell you to do.

Before you do anything permanent, make sure to take full backups of anything you think is important.

Configuration

The installation requires a configuration file. There is a sample config provided at ./installer/bootstrap_conf_example. All of the variables are required and none should be left empty.

Starting the installation

To start the installation, go into the ./installer directory and run the following command

sudo ./bootstrap.sh /path/to/the/config_file

The rest of the instructions will be given during the installation. Whenever some installation script finishes, it will tell what to do and what script to run next.

Here are some of the scripts that are run during the installation:

  • bootstrap.sh Starts the installation and sets up the LFS user
  • lfs-user-bootstrap.sh Compiles the cross compiling toochain and temporary tools as the LFS user
  • bootstrap-chroot.sh Sets up the BirbOS chroot environment and chroots into it
  • chroot-install.sh Creates the rest of the core filesystem and does some basic configuration
  • chroot-install-part-2.sh Continuation for the chroot-install.sh script after the shell restart. It compiles the rest of the temporary tools, installs the birb package manager and then uses it to install the rest of the needed packages overwriting the temporary tools
  • chroot-install-part-3.sh Continuation for the chroot-install-part-2.sh script and gets run automatically. It creates the rest of the required system configuration files and prepared the kernel for compiling
  • chroot-install-part-4.sh The end of the installation. The script compiles and installs the kernel, creates a few last configuration files and cleans up most of the temporary files from the BirbOS installation

Kernel configuration

The default kernel config file that is bundled with the installation scripts is quite barebone and probably doesn't work on any other devices other than the desktop of the main developer of this distribution. You'll have to figure out the required kernel options yourself with programs like lspci etc. on the host distro. There might also be some missing firmware that you'll need to acquire. Refer to this LFS page for instructions on how to install any missing firmware blobs.

The default kernel is configured with this hardware list in mind

  • AMD Ryzen 5 5600G
  • NVIDIA GeForce RTX 3060
  • M.2 NVMe SSD
  • Realtek Semiconductor Co., Ltd. RTL8125
  • Family 17h/19h HD Audio Controller
  • No WiFi / Bluetooth

If your hardware configuration is something similar to what is listed above, you might have some luck with minimal editing using the provided kernel configuration. The kernel config has most of the Intel CPU stuff and AMD GPU options disabled.

Booting

The scripts only copy the kernel files to /boot and do nothing else. The bootloader needs to be set up manually by the user. This might involve creating a custom menuentry to GRUB etc. Make sure to set the root partition in the menuentry appropriately.

efibootmgr is packaged in the core repository, so you can use that as a GRUB alternative.

Post installation

The base installation of BirbOS is quite barebones. It has things like git, wget and curl installed however, so you can easily download more stuff from the internet (assuming you get that working). You can finish the system installation by booting into your fresh BirbOS installation or by staying in the chroot environment.

Note This is a good point to take a full backup of the BirbOS root filesystem in case something goes wrong with the rest of the installation, unless you want to spend more time compiling stuff all over again

Chrooting into BirbOS

Whenever something goes horribly wrong and you can't boot to BirbOS for some reason, you can attempt to chroot into it. You can do this by mounting the BirbOS root partition to the /mnt/lfs directory that was created during the installation. After that, simply run the script ./installer/enter_chroot.sh located in the BirbOS source directory. The script will chroot into the BirbOS installation after bind mounting /dev, /proc, /sys etc.. In the chroot environment you can run commands as the root user.

If the problem is so severe that you can't chroot to your installation (due to missing files etc.), you might want to restore your backups to the mounted filesystem (you took backups, right?). Just remember that the /usr/bin directory in BirbOS doesn't actually contain the binaries but rather symlinks to /var/db/fakeroot, so if you want to copy over something into that directory to fix thing, you might have to reinstall those said packages with birb later on with the birb --install --overwrite flags if you want to keep using the system normally.

Connecting to the internet

Important If you need dhcpcd or any other networking related programs, remember to install them in the chroot environment before rebooting to BirbOS. Downloading packages without internet is difficult

By default there won't be any network interfaces up. You can fix this with the ifconfig command. To get an IP address, start the dhcpcd daemon.

If there are any errors referring to firmware, refer to this LFS page for instructions on how to install any missing firmware blobs.

How to install packages

Installing packages with birb is as simple as this

birb vim htop pfetch

You can install multiple packages consecutively at once and the package manager will figure out the dependencies needed to make that happen.

You can uninstall something with the --uninstall flag

birb --uninstall emacs

Have a look at the birb man page for more detailed instructions

man birb

If you don't want to use the included package manager, you can also install software by manually compiling from source.

Distro independent package management schemes

AppImage

To run AppImages, install the fuse2 package. It comes with the libfuse.so.2 library and fusermount, basically the minimum required for AppImages. The rest of the FUSE stuff comes with the fuse package that fuse2 depends on.

However be aware that the version 2 of FUSE isn't getting updated anymore and might contain security vulnerabilities. Also the fusermount binary installed with fuse2 is a setuid binary.

Flatpak

Flatpak isn't supported yet due to some missing dependencies, but it might be packaged in the future to make installing big 32bit programs like Steam easier and more convinient.

If feasible, flatpak could be integrated into birb directly as an optional thing to increase package availability and possibly security when running proprietary software.

Nix store

The nix store should be fairly trivial to install with no conflicts with the instructions found here.

Snap

No.

Stealing packages from other distros

Extracting deb and rpm files can work in some cases, but in no way is supported or endorsed. You might get away with installing a few such packages with stow or some other reversable way, but expect dependency trouble. The mentioned two package management schemes are used by distros with possibly way different (runtime) dependency versions and some packages might also expect SystemD to be present.

Known issues

GTK+

Installing GTK+ for the first time will can fail due to some missing .gir files. You can get around this issue by reinstalling the following packages before installing GTK+

  • harfbuzz
  • gdk-pixbuf

Firefox

Installing Firefox for the first time might fail due to an error related to HarfBuzz. To get around this, force reinstall the harfbuzz package.

setxkbmap not finding rules

You might come across the following issue when running setxkbmap

toasterbirb@tux ~ $ setxkbmap fi
Couldn't find rules file (evdev)
toasterbirb@tux ~ $

To fix this, point setxkbmap to the rules with the following arguments

setxkbmap -I /usr/share/X11/xkb fi

Missing sbin symlink

Originally /sbin was supposed to be a symlink to /usr/sbin, but the kmod package overwrote it during the installation due to the usage of birb --install --overwrite options. Due to this, all packages after that have been packaged with the idea of having /sbin as a separate directory. This issue may or may not be fixed in the future.

Audio issues with osu lazer

The osu!lazer appimage can have some issues with audio out-of-the box, because it tries to hijack the entire audio device to itself with ALSA. To fix this issue, you need to reinstall (recompile) the alsa-plugins package with the pulseaudio package installed, so that it detects pulseaudio and compiles support for it.

The Tor browser does not launch

Enable the wayland use flag in /etc/birb.conf like so: export USE_FLAGS="... wayland" (the three dots being other use flags you might already have enabled) and reinstall gtk+

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[MIRROR] BirbOS is a source-based Linux distro built on top of LFS

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