#!/usr/bin/env bash # Cleaning the TTY. clear # Exit on STDERR. set -e kernel_options() { echo "Which kernel flavor would you want?" echo "[1] Stable — Vanilla Linux kernel and modules, with a few patches applied." echo "[2] Hardened — A security-focused Linux kernel applying a set of hardening patches to mitigate kernel and userspace exploits. It also enables more upstream kernel hardening features than Stable." echo "[3] Longterm — Long-term support (LTS) Linux kernel and modules." echo "[4] Zen Kernel — Result of a collaborative effort of kernel hackers to provide the best Linux kernel possible for everyday systems. Some more details can be found on https://liquorix.net (which provides kernel binaries based on Zen for Debian)." output "" read choice case $choice in 1 ) KERNEL=linux output "You have selected to install the vanilla Linux kernel." output "" ;; 2 ) KERNEL=linux-hardened output "You have selected to install the hardened kernel." output "" ;; 3 ) KERNEL=linux-lts output "You have selected to install the long term kernel." output "" ;; 4 ) KERNEL=linux-zen output "You have selected to install the Zen kernel." output "" ;; * ) output "You did not enter a valid selection." kernel_options esac } # Selecting the target for the installation. PS3="Select the disk where Arch Linux is going to be installed: " select ENTRY in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme"); do DISK=$ENTRY echo "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 echo "Quitting." exit fi # Creating a new partition scheme. echo "Creating new partition scheme on $DISK." parted -s $DISK \ mklabel gpt \ mkpart ESP fat32 1MiB 513MiB \ mkpart Cryptroot 513MiB 100% \ ESP="/dev/disk/by-partlabel/ESP" Cryptroot="/dev/disk/by-partlabel/Cryptroot" # Informing the Kernel of the changes. echo "Informing the Kernel about the disk changes." partprobe $DISK # Formatting the ESP as FAT32. echo "Formatting the EFI Partition as FAT32." mkfs.fat -F 32 $ESP &>/dev/null # Creating a LUKS Container for the root partition. echo "Creating LUKS Container for the root partition." cryptsetup --type luks1 luksFormat $Cryptroot echo "Opening the newly created LUKS Container." cryptsetup open $Cryptroot cryptroot BTRFS="/dev/mapper/cryptroot" # Formatting the LUKS Container as BTRFS. echo "Formatting the LUKS container as BTRFS." mkfs.btrfs $BTRFS &>/dev/null mount $BTRFS /mnt # Creating BTRFS subvolumes. echo "Creating BTRFS subvolumes." btrfs su cr /mnt/@ &>/dev/null btrfs su cr /mnt/@boot &>/dev/null btrfs su cr /mnt/@home &>/dev/null btrfs su cr /mnt/@snapshots &>/dev/null btrfs su cr /mnt/@var_log &>/dev/null btrfs su cr /mnt/@swap &>/dev/null # Mounting the newly created subvolumes. umount /mnt echo "Mounting the newly created subvolumes." mount -o ssd,noatime,space_cache,compress=zstd,subvol=@ $BTRFS /mnt mkdir -p /mnt/{home,.snapshots,/var/log,swap,boot,/boot/efi} mount -o ssd,noatime,space_cache.fmask=0022,dmask=0022,compress=zstd,subvol=@boot $BTRFS /mnt/boot mount -o ssd,noatime,space_cache.compress=zstd,subvol=@home $BTRFS /mnt/home mount -o ssd,noatime,space_cache,compress=zstd,subvol=@snapshots $BTRFS /mnt/.snapshots mount -o ssd,noatime,space_cache,nodatacow,subvol=@var_log $BTRFS /mnt/var/log mount -o nodatacow,subvol=@swap $BTRFS /mnt/swap mount $ESP /mnt/boot/efi # Pacstrap (setting up a base sytem onto the new root). echo "Installing the base system (it may take a while)." pacstrap /mnt base ${KERNEL} linux-firmware btrfs-progs grub grub-btrfs efibootmgr snapper sudo neovim networkmanager &>/dev/null # Generating /etc/fstab. echo "Generating a new fstab." genfstab -U /mnt >> /mnt/etc/fstab # Setting hostname. read -r -p "Please enter the hostname: " hostname echo $hostname > /mnt/etc/hostname # Setting up locales. read -r -p "Please insert the locale you use in this format (xx_XX): " locale echo "$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. echo "Setting hosts file." cat > /mnt/etc/hosts </dev/null dd if=/dev/zero of=/mnt/swap/swapfile bs=1G count=$swap &>/dev/null chmod 600 /mnt/swap/swapfile mkswap /mnt/swap/swapfile &>/dev/null swapon /mnt/swap/swapfile &>/dev/null echo "/swap/swapfile none swap defaults 0 0" >> /mnt/etc/fstab else # Removing swap subvolumes and fstab entry in case it's not needed. echo "Deleting BTRFS swap subvolume." mount $BTRFS -o subvolid=5 /home head -n -4 /home/@/etc/fstab > /home/@/etc/new_fstab && mv /home/@/etc/new_fstab /home/@/etc/fstab btrfs su de /home/@swap &>/dev/null umount -R /home echo "No swapfile has been added." fi # Configuring the system. arch-chroot /mnt /bin/bash -e </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/efi --bootloader-id=GRUB &>/dev/null # Creating grub config file. echo "Creating GRUB config file." grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null EOF # Setting root password. echo "Setting root password." arch-chroot /mnt /bin/passwd # Enabling auto-trimming service. echo "Enabling auto-trimming." systemctl enable fstrim.timer --root=/mnt &>/dev/null # Enabling NetworkManager service. echo "Enabling NetworkManager." systemctl enable NetworkManager --root=/mnt &>/dev/null # Enabling Snapper automatic snapshots. echo "Enabling Snapper." systemctl enable snapper-timeline.timer --root=/mnt &>/dev/null systemctl enable snapper-cleanup.timer --root=/mnt &>/dev/null echo "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)." exit