#!/usr/bin/env -S bash -e # Cleaning the TTY. clear # Pretty print (function). print () { echo -e "\e[1m\e[93m[ \e[92m•\e[93m ] \e[4m$1\e[0m" } # Selecting a kernel to install (function). kernel_selector () { print "List of kernels:" print "1) Stable: Vanilla Linux kernel and modules, with a few specific Arch Linux patches applied." print "2) Hardened: A security-focused Linux kernel." print "3) LTS: Long-term support (LTS) Linux kernel and modules." print "4) Zen: A Linux kernel optimized for desktop usage." read -r -p "Insert the number of the corresponding kernel: " choice print "$choice will be installed" case $choice in 1 ) kernel=linux ;; 2 ) kernel=linux-hardened ;; 3 ) kernel=linux-lts ;; 4 ) kernel=linux-zen ;; * ) print "You did not enter a valid selection." kernel_selector esac } # Selecting a way to handle internet connection (function). network_selector () { print "Network utilities:" print "1) IWD: iNet wireless daemon is a wireless daemon for Linux written by Intel (WiFi-only)." print "2) NetworkManager: Program for providing detection and configuration for systems to automatically connect to networks (both WiFi and Ethernet)." print "3) wpa_supplicant: It's a cross-platform supplicant with support for WEP, WPA and WPA2 (WiFi-only, a DHCP client will be automatically installed too.)" print "4) I will do this on my own." read -r -p "Insert the number of the corresponding networking utility: " choice print "$choice will be installed" case $choice in 1 ) print "Installing IWD." pacstrap /mnt iwd print "Enabling IWD." systemctl enable iwd --root=/mnt &>/dev/null ;; 2 ) print "Installing NetworkManager." pacstrap /mnt networkmanager print "Enabling NetworkManager." systemctl enable NetworkManager --root=/mnt &>/dev/null ;; 3 ) print "Installing wpa_supplicant and dhcpcd." pacstrap /mnt wpa_supplicant dhcpcd print "Enabling wpa_supplicant and dhcpcd." systemctl enable wpa_supplicant --root=/mnt &>/dev/null systemctl enable dhcpcd --root=/mnt &>/dev/null ;; 4 ) ;; * ) print "You did not enter a valid selection." network_selector esac } # Setting hostname. hostname_selector () { read -r -p "Please enter the hostname: " hostname if [ -z "$hostname" ]; then print "You need to enter a hostname in order to continue." hostname_selector fi echo "$hostname" > /mnt/etc/hostname } # Setting up system clock. print "Setting up the system clock." timedatectl set-ntp true &>/dev/null # Checking the microcode to install. CPU=$(grep vendor_id /proc/cpuinfo) if [[ $CPU == *"AuthenticAMD"* ]] then microcode=amd-ucode else microcode=intel-ucode fi # Selecting the target for the installation. PS3="Select the disk where Arch Linux is going to be installed: " select ENTRY in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme|vd"); do DISK=$ENTRY print "Installing Arch Linux on $DISK." break done # Deleting old partition scheme. read -r -p "This will delete the current partition table on $DISK. Do you agree [y/N]? " response response=${response,,} if [[ "$response" =~ ^(yes|y)$ ]] then wipefs -af "$DISK" &>/dev/null sgdisk -Zo "$DISK" &>/dev/null else print "Quitting." exit fi # Creating a new partition scheme. print "Creating new partition scheme on $DISK." parted -s "$DISK" \ mklabel gpt \ mkpart ESP fat32 1MiB 513MiB \ set 1 esp on \ mkpart Cryptroot 513MiB 100% \ ESP="/dev/disk/by-partlabel/ESP" Cryptroot="/dev/disk/by-partlabel/Cryptroot" # Informing the Kernel of the changes. print "Informing the Kernel about the disk changes." partprobe "$DISK" # Formatting the ESP as FAT32. print "Formatting the EFI Partition as FAT32." mkfs.fat -F 32 $ESP &>/dev/null # Creating a LUKS Container for the root partition. print "Creating LUKS Container for the root partition." read -r -p "Insert password for the LUKS container: " password echo -n "$password" | cryptsetup luksFormat $Cryptroot -d - echo -n "$password" | cryptsetup open $Cryptroot cryptroot -d - BTRFS="/dev/mapper/cryptroot" # Formatting the LUKS Container as BTRFS. print "Formatting the LUKS container as BTRFS." mkfs.btrfs $BTRFS &>/dev/null mount $BTRFS /mnt # Creating BTRFS subvolumes. print "Creating BTRFS subvolumes." for volume in @ @home @snapshots @var_log do btrfs su cr /mnt/$volume &>/dev/null done # Mounting the newly created subvolumes. umount /mnt print "Mounting the newly created subvolumes." mount -o ssd,noatime,space_cache,compress=zstd,subvol=@ $BTRFS /mnt mkdir -p /mnt/{home,.snapshots,/var/log,boot} mount -o ssd,noatime,space_cache=v2,compress=zstd,discard=async,subvol=@home $BTRFS /mnt/home mount -o ssd,noatime,space_cache=v2,compress=zstd,discard=async,subvol=@snapshots $BTRFS /mnt/.snapshots mount -o ssd,noatime,space_cache=v2,compress=zstd,discard=async,subvol=@var_log $BTRFS /mnt/var/log chattr +C /mnt/var/log mount $ESP /mnt/boot/ kernel_selector # Pacstrap (setting up a base sytem onto the new root). print "Installing the base system (it may take a while)." pacstrap /mnt base $kernel $microcode linux-firmware btrfs-progs grub grub-btrfs efibootmgr snapper reflector base-devel snap-pac zram-generator network_selector hostname_selector # Generating /etc/fstab. print "Generating a new fstab." genfstab -U /mnt >> /mnt/etc/fstab # Setting username. read -r -p "Please enter name for a user account (enter empty to not create one): " username # Setting up locales. read -r -p "Please insert the locale you use (format: xx_XX): " locale echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf # Setting up keyboard layout. read -r -p "Please insert the keyboard layout you use: " kblayout echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf # Setting hosts file. print "Setting hosts file." cat > /mnt/etc/hosts </dev/null # Setting up clock. echo "Setting up the system clock." hwclock --systohc # Generating locales. echo "Generating locales." locale-gen &>/dev/null # Generating a new initramfs. echo "Creating a new initramfs." mkinitcpio -P &>/dev/null # Snapper configuration umount /.snapshots rm -r /.snapshots snapper --no-dbus -c root create-config / btrfs subvolume delete /.snapshots &>/dev/null mkdir /.snapshots mount -a chmod 750 /.snapshots # Installing GRUB. echo "Installing GRUB on /boot." grub-install --target=x86_64-efi --efi-directory=/boot/ --bootloader-id=GRUB &>/dev/null # Creating grub config file. echo "Creating GRUB config file." grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null # Adding user with sudo privileges. if [ -n "$username" ]; then echo "Adding $username with root privilege." useradd -m "$username" usermod -aG wheel "$username" echo "$username ALL=(ALL) ALL" >> /etc/sudoers.d/"$username" fi EOF # Setting root password. print "Setting root password." arch-chroot /mnt /bin/passwd [ -n "$username" ] && print "Setting user password for ${username}." && arch-chroot /mnt /bin/passwd "$username" # ZRAM configuration. print "Configuring ZRAM." cat > /mnt/etc/systemd/zram-generator.conf </dev/null done # Finishing up. print "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)." exit