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+---
+title: Arch Linux
+---
+
+**Do not enter commands listed here verbatim without forethought**
+
+
+## Installation guide
+
+For future reference if I ever need to install this system again.
+
+Reference:
+- https://wiki.archlinux.org/title/installation_guide
+
+### Prepare installation medium
+
+Download iso from the [Arch Linux website](https://archlinux.org/download/).
+
+Plug USB drive, usually it will be `/dev/sdb` or something similar. You can find it using this command:
+
+```sh
+sudo fdisk -l
+```
+
+Write iso file to the USB drive:
+
+```sh
+sudo dd bs=4M if=/path/to/iso/file of=/dev/sdX status=progress && sync
+```
+
+### Internet connection
+
+Reference:
+- https://wiki.archlinux.org/title/iwd
+
+```sh
+ping archlinux.org
+```
+
+If there's no connection check interfaces:
+```sh
+ip a
+```
+
+Use `iwctl` to connect to wifi:
+
+```sh
+iwctl
+station [DEVICE] connect [SSID]
+```
+
+### Partitions
+
+Reference:
+- https://wiki.archlinux.org/title/partitioning
+- https://wiki.archlinux.org/title/file_systems
+
+```sh
+cfdisk /dev/sda
+```
+
+| Partition    | Size | Type             |
+| ------------ | ---- | ---------------- |
+| 1            | 512M | EFI System       |
+| 2 (optional) | 8G   | Linux swap       |
+| 3            | rest | Linux filesystem |
+
+
+Format partitions:
+
+```sh
+# EFI
+mkfs.fat -F32 /dev/sda1
+# Swap
+mkswap /dev/sda2
+swapon /dev/sda2
+# Root filesystem
+mkfs.ext4 /dev/sda3
+```
+
+### Install Arch
+
+Reference:
+- https://wiki.archlinux.org/title/installation_guide
+
+```sh
+pacman -Syy
+mount /dev/sda3 /mnt
+pacstrap -K /mnt base linux linux-firmware sudo vim dhcpcd
+```
+
+```sh
+genfstab -U /mnt >> /mnt/etc/fstab
+```
+
+```sh
+arch-chroot /mnt
+```
+
+```sh
+pacman -S grub efibootmgr os-prober mtools
+mkdir /boot/efi
+mount /dev/sda1 /boot/efi
+grub-install --target=x86_64-efi --bootloader-id=grub_uefi
+grub-mkconfig -o /boot/grub/grub.cfg
+```
+
+### Desktop environment
+
+Reference:
+- https://wiki.archlinux.org/title/SDDM
+- https://wiki.archlinux.org/title/KDE
+
+Install KDE:
+
+```sh
+pacman -S xorg-server xorg-apps
+pacman -S nvidia nvidia-utils
+pacman -S sddm plasma networkmanager plasma-nm
+```
+
+Enable systemd services for the DE:
+
+```sh
+systemctl enable dhcpcd
+systemctl enable sddm
+```
+
+
+## Fcitx5 + Mozc
+
+Reference:
+- https://wiki.archlinux.org/title/Fcitx5
+- https://wiki.archlinux.org/title/Mozc
+
+```sh
+sudo pacman -S fcitx5-im fcitx5-mozc
+fcitx5-config-qt
+```
+
+In `/etc/environment` add:
+
+```sh
+GTK_IM_MODULE=fcitx
+QT_IM_MODULE=fcitx
+XMODIFIERS=@im=fcitx
+SDL_IM_MODULE=fcitx
+GLFW_IM_MODULE=ibus
+```
+