#!/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$1\e[0m" } # Virtualization check (function). virt_check () { hypervisor=$(systemd-detect-virt) case $hypervisor in kvm ) print "KVM has been detected." print "Installing guest tools." pacstrap /mnt qemu-guest-agent >/dev/null print "Enabling specific services for the guest tools." systemctl enable qemu-guest-agent --root=/mnt &>/dev/null ;; vmware ) print "VMWare Workstation/ESXi has been detected." print "Installing guest tools." pacstrap /mnt open-vm-tools >/dev/null print "Enabling specific services for the guest tools." systemctl enable vmtoolsd --root=/mnt &>/dev/null systemctl enable vmware-vmblock-fuse --root=/mnt &>/dev/null ;; oracle ) print "VirtualBox has been detected." print "Installing guest tools." pacstrap /mnt virtualbox-guest-utils >/dev/null print "Enabling specific services for the guest tools." systemctl enable vboxservice --root=/mnt &>/dev/null ;; microsoft ) print "Hyper-V has been detected." print "Installing guest tools." pacstrap /mnt hyperv >/dev/null print "Enabling specific services for the guest tools." systemctl enable hv_fcopy_daemon --root=/mnt &>/dev/null systemctl enable hv_kvp_daemon --root=/mnt &>/dev/null systemctl enable hv_vss_daemon --root=/mnt &>/dev/null ;; * ) ;; esac } # Selecting a kernel to install (function). kernel_selector () { print "List of kernels:" print "1) Stable: Vanilla Linux kernel 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" print "4) Zen: A Linux kernel optimized for desktop usage" read -r -p "Insert the number of the corresponding kernel: " kernel_choice case $kernel_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: Universal network utility to automatically connect to networks (both WiFi and Ethernet)" print "3) wpa_supplicant: Cross-platform supplicant with support for WEP, WPA and WPA2 (WiFi-only, a DHCP client will be automatically installed as well)" print "4) dhcpcd: Basic DHCP client (Ethernet only or VMs)" print "5) I will do this on my own (only advanced users)" read -r -p "Insert the number of the corresponding networking utility: " network_choice if ! ((1 <= network_choice <= 5)); then print "You did not enter a valid selection." network_selector fi } # Installing the chosen networking method to the system. network_installer () { case $network_choice in 1 ) print "Installing IWD." pacstrap /mnt iwd >/dev/null print "Enabling IWD." systemctl enable iwd --root=/mnt &>/dev/null ;; 2 ) print "Installing NetworkManager." pacstrap /mnt networkmanager >/dev/null print "Enabling NetworkManager." systemctl enable NetworkManager --root=/mnt &>/dev/null ;; 3 ) print "Installing wpa_supplicant and dhcpcd." pacstrap /mnt wpa_supplicant dhcpcd >/dev/null print "Enabling wpa_supplicant and dhcpcd." systemctl enable wpa_supplicant --root=/mnt &>/dev/null systemctl enable dhcpcd --root=/mnt &>/dev/null ;; 4 ) print "Installing dhcpcd." pacstrap /mnt dhcpcd >/dev/null print "Enabling dhcpcd." systemctl enable dhcpcd --root=/mnt &>/dev/null esac } # Setting up a password for the LUKS Container (function). lukspass_selector () { while true; do read -r -s -p "Insert password for the LUKS container (you're not going to see the password): " password while [ -z "$password" ]; do echo print "You need to enter a password for the LUKS Container in order to continue." read -r -s -p "Insert password for the LUKS container (you're not going to see the password): " password [ -n "$password" ] && break done echo read -r -s -p "Password (again): " password2 echo [ "$password" = "$password2" ] && break echo "Passwords don't match, try again." done } # Setting up a password for the user account (function). userpass_selector () { while true; do read -r -s -p "Set a user password for $username: " userpass while [ -z "$userpass" ]; do echo print "You need to enter a password for $username." read -r -s -p "Set a user password for $username: " userpass [ -n "$userpass" ] && break done echo read -r -s -p "Insert password again: " userpass2 echo [ "$userpass" = "$userpass2" ] && break echo "Passwords don't match, try again." done } # Setting up a password for the root account (function). rootpass_selector () { while true; do read -r -s -p "Set a root password: " rootpass while [ -z "$rootpass" ]; do echo print "You need to enter a root password." read -r -s -p "Set a root password: " rootpass [ -n "$rootpass" ] && break done echo read -r -s -p "Password (again): " rootpass2 echo [ "$rootpass" = "$rootpass2" ] && break echo "Passwords don't match, try again." done } # Microcode detector (function). microcode_detector () { CPU=$(grep vendor_id /proc/cpuinfo) if [[ $CPU == *"AuthenticAMD"* ]]; then print "An AMD CPU has been detected, the AMD microcode will be installed." microcode="amd-ucode" else print "An Intel CPU has been detected, the Intel microcode will be installed." microcode="intel-ucode" fi } # Setting up the hostname (function). hostname_selector () { read -r -p "Please enter the hostname: " hostname if [ -z "$hostname" ]; then print "You need to enter a hostname in order to continue." hostname_selector fi echo "$hostname" > /mnt/etc/hostname } # Setting up the locale (function). locale_selector () { read -r -p "Please insert the locale you use (format: xx_XX. Enter empty to use en_US, or type a "/" to search avaliable locales): " locale case $kblayout in '') print "en_US will be used as default locale." locale="en_US.UTF-8";; '/') sed -E '/^# +|^#$/d;s/^#| *$//g;s/ .*/ (Charset:&)/' /etc/locale.gen | less -M;; *) if ! grep -Fxq $locale /etc/locale.gen; then print "The specified locale doesn't exist or isn't supported." locale_selector fi sed -i "$locale/s/^#//" /etc/locale.gen esac } # Setting up the keyboard layout (function). keyboard_selector () { read -r -p "Please insert the keyboard layout you use (enter empty to use US keyboard layout, or enter "/" to search avaliable layouts): " kblayout case $kblayout in '') print "US keyboard layout will be used by default." kblayout="us";; '/') localectl list-keymaps keyboard_selector;; *) if ! $(localectl list-keymaps | grep -Fxq $kblayout); then print "The specified keymap doesn't exist." keyboard_selector fi print "Changing layout to $kblayout." loadkeys $kblayout esac } # Selecting the target for the installation. print "Welcome to easy-arch, a script made in order to simplify the process of installing Arch Linux." # Setting up keyboard layout. keyboard_selector PS3="Please select the disk NUMBER e.g. 1 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 # Warn user about deletion of old partition scheme. read -r -p "This will delete the current partition table on $DISK once installation starts. Do you agree [y/N]? " disk_response disk_response=${disk_response,,} if ! [[ "$disk_response" =~ ^(yes|y)$ ]]; then print "Quitting." exit fi # Setting up LUKS password. lukspass_selector # Setting up the kernel. kernel_selector # User choses the network. network_selector # Setting up the locale. locale_selector # Setting up the hostname. hostname_selector # Setting username. read -r -p "Please enter name for a user account (enter empty to not create one): " username userpass_selector rootpass_selector # Deleting old partition scheme. print "Wiping $DISK." wipefs -af "$DISK" &>/dev/null sgdisk -Zo "$DISK" &>/dev/null # Creating a new partition scheme. print "Creating the partitions 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 $ESP &>/dev/null # Creating a LUKS Container for the root partition. print "Creating LUKS Container for the root partition." echo -n "$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." subvols=(snapshots var_pkgs var_log home root srv) for subvol in '' ${subvols[@]}; do btrfs su cr /mnt/@$volume done # Mounting the newly created subvolumes. umount /mnt print "Mounting the newly created subvolumes." mountopts="ssd,noatime,compress-force=zstd:3,discard=async" mount -o $mountopts,subvol=@ $BTRFS /mnt mkdir -p /mnt/{home,root,srv,.snapshots,var/{log,cache/pacman/pkg},boot} for subvol in ${subvols[@]:2}; do # ":2" excludes first two subvols (@snapshots and @var_pkgs) from loop mount -o $mountopts,subvol=@$subvol $BTRFS /mnt/$(sed 's,_,/,g' <<< $subvol) done mount -o $mountopts,subvol=@snapshots $BTRFS /mnt/.snapshots mount -o $mountopts,subvol=@var_pkgs $BTRFS /mnt/var/cache/pacman/pkg chattr +C /mnt/var/log mount $ESP /mnt/boot/ # Configure selected keyboard layout and locale echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf echo "LANG=$locale" > /mnt/etc/locale.conf # Pacstrap (setting up a base sytem onto the new root). print "Installing the base system (it may take a while)." pacstrap /mnt --needed base $kernel $microcode linux-firmware $kernel-headers btrfs-progs grub grub-btrfs rsync efibootmgr snapper reflector base-devel snap-pac zram-generator >/dev/null # Generating /etc/fstab. print "Generating a new fstab." genfstab -U /mnt >> /mnt/etc/fstab # Setting hosts file. print "Setting hosts file." cat > /mnt/etc/hosts < /mnt/etc/mkinitcpio.conf </dev/null # Setting up clock. echo "Setting up the system clock." hwclock --systohc # Generating locales. echo "Generating locales." locale-gen &>/dev/null # Generating a new initramfs. echo "Creating a new initramfs." mkinitcpio -P &>/dev/null # Snapper configuration echo "Configuring Snapper." umount /.snapshots rm -r /.snapshots snapper --no-dbus -c root create-config / btrfs subvolume delete /.snapshots &>/dev/null mkdir /.snapshots mount -a chmod 750 /.snapshots # Installing GRUB. echo "Installing GRUB on /boot." grub-install --target=x86_64-efi --efi-directory=/boot/ --bootloader-id=GRUB &>/dev/null # Creating grub config file. echo "Creating GRUB config file." grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null EOF # Setting root password. print "Setting root password." echo "root:$rootpass" | arch-chroot /mnt chpasswd # Setting user password. if [ -n "$username" ]; then print "Adding the user $username to the system with root privilege." arch-chroot /mnt useradd -m -G wheel -s /bin/bash "$username" sed -i '/%wheel ALL=(ALL) ALL/s/^# //' /mnt/etc/sudoers print "Setting user password for $username." echo "$username:$userpass" | arch-chroot /mnt chpasswd fi # Boot backup hook. print "Configuring /boot backup when pacman transactions are made." mkdir /mnt/etc/pacman.d/hooks cat > /mnt/etc/pacman.d/hooks/50-bootbackup.hook < /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