Instructions for dual booting Arch Linux with Windows 10/11 (Intel GPU) and installing i3 as the Window Manager

ArchInstallDualBoot.sh

#!/usr/bin/env bash

##########################
# AUTHOR: SHASHANK SINGH #
##########################

# Adjust terminal font size for better visibility
setfont ter-132n

###### Connect to Wi-Fi if Ethernet is unavailable using iwctl ######

# Replace <iface> & <ssid> with your wireless interface and preferred network name respectively.
iwctl
# List available network interfaces
device list 
# View available networks
station <iface> get-networks
# Connect to desired network using SSID
station <iface> connect <ssid>
# Verify internet connectivity
ip addr | grep 'inet '
# Test connection
ping -c 4 www.google.com

###### Synchronize the pacman package database ######

pacman -Syy
# Install Arch Linux Keyring
pacman -S archlinux-keyring 

###### Set up partitioning scheme ######

# Identify connected hard drives
lsblk
# Use disk utility such as cfdisk to partition (e.g., cfdisk /dev/<drv>)
# Create partitions: Root (/), Home (/home), Swap (optional), Boot (/boot/EFI)
# Format partitions
mkfs.fat -F32 /dev/<efi_partition> && mkfs.ext4 /dev/<root_partition> && mkfs.ext4 /dev/<home_partition> && mkswap /dev/<swap_partition>
# Mount partitions
mount /dev/<root_partition> /mnt && mkdir /mnt/home && mount /dev/<home_partition> /mnt/home && mkdir -p /mnt/boot/EFI && mount /dev/<efi_partition> /mnt/boot/EFI && swapon /dev/<swap_partition>

###### Installing Arch Base in the root partition ######

pacstrap -i /mnt base base-devel linux linux-firmware sudo 

###### Generate the fstab file to mount partitions automatically at boot ######

genfstab -U /mnt >> /mnt/etc/fstab
# Review fstab
cat /mnt/etc/fstab

###### Log in to the newly installed system ######

arch-chroot /mnt

###### Set super user password ######

passwd

###### Create new user and set password ######

useradd -m -g users -G wheel,storage,power,video,audio -s /bin/bash <username>
passwd <username>

###### Edit sudoers file to enable users of the wheel group to use sudo command ######

EDITOR=nvim visudo
# Uncomment: %wheel ALL=(ALL:ALL) ALL

###### Link timezone with localtime ######

ln -sf /usr/share/zoneinfo/<Continent>/<City> /etc/localtime # (e.g., /usr/share/zoneinfo/Asia/Kolkata)
hwclock --systohc

###### Set system language by specifying a locale ######

nvim /etc/locale.gen
# Uncomment line for your locale (e.g., en_US.UTF-8 UTF-8)
locale-gen
nvim /etc/locale.conf
# Add: LANG=en_US.UTF-8 (or your desired locale configuration)

###### Set up hosts ######

nvim /etc/hostname
# Add system hostname (e.g., archlinux)
nvim /etc/hosts
# Add content replacing <hostname> with system hostname
127.0.0.1   localhost
::1         localhost
127.0.1.1   <hostname>.localdomain    <hostname>

###### Install required and additional software ######

pacman -Sy htop mesa intel-media-driver intel-ucode neovim bluez bluez-utils networkmanager network-manager-applet gnome-keyring openssh grub efibootmgr dosfstools mtools git os-prober

###### Install GRUB Bootloader ######

grub-install --target=x86_64-efi --efi-directory=/boot/EFI --bootloader-id=GRUB
cp /usr/share/locale/en\@quot/LC_MESSAGES/grub.mo /boot/grub/locale/en.mo
grub-mkconfig -o /boot/grub/grub.cfg
nvim /etc/default/grub
# Set: GRUB_DISABLE_OS_PROBER=false
grub-mkconfig -o /boot/grub/grub.cfg

###### Enable Bluetooth and Network Manager services ######

systemctl enable bluetooth
systemctl enable NetworkManager

###### Exit chroot environment and unmount partitions ######

exit
umount -lR /mnt

###### Shutdown system, eject flash drive, and reboot #####
shutdown now

##########################
#     Installing a WM    #
##########################

# Login with <username> credentials

# Adjust terminal font size
setfont -d

###### Connect to Wi-Fi using nmcli if Ethernet is unavailable ######

# Check device status
nmcli dev status
# Enable Wi-Fi
nmcli radio wifi on
# List nearby Wi-Fi networks
nmcli dev wifi list
# Connect to Wi-Fi using SSID and password
sudo nmcli dev wifi connect <ssid> password "<pass>"

###### Install i3 Window Manager ######

sudo pacman -Syy
sudo pacman -S i3-gaps xorg-server xorg-xinit xorg-xrandr ttf-dejavu dmenu kitty fish starship eza ranger thunar gvfs gvfs-mtp xarchiver lxappearance arc-gtk-theme feh xdg-user-dirs 
yay -S brave-bin visual-studio-code-bin 
cp /etc/X11/xinit/xinitrc /home/<username>/.xinitrc
# Edit .xinitrc, remove existing WM lines, and add:
# exec i3

###### Install Login Manager ######

sudo pacman -S lightdm lightdm-webkit2-greeter
yay -S lightdm-webkit-theme-aether
sudo systemctl enable --now lightdm
sudo nvim /etc/lightdm/lightdm.conf # (change greeter-session=lightdm-webkit2-greeter)
sudo nvim /etc/lightdm/lightdm-webkit2-greeter.conf # (change webkit_theme = lightdm-webkit-theme-aether)

# If /etc/lightdm/lightdm-webkit2-greeter.conf doesn't exist, create and add:

[Seat:*]
allow-guest=false
greeter-wrapper=/usr/lib/lightdm/lightdm-greeter-session
greeter-session=lightdm-webkit2-greeter
allow-user-switching=true
session-wrapper=/etc/lightdm/Xsession

# Autostart systemd default session on tty1, add to /etc/profile
if [[ "$(tty)" == '/dev/tty1' ]]; then
    exec startx
fi

###### Reboot and hope for the best, asking for forgiveness and mercy from the Almighty for system stability #####