Add bootstrap.sh
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328
bootstrap.sh
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328
bootstrap.sh
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#!/usr/bin/env bash
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#
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# Arch Linux installation
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#
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# Bootable USB:
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# - [Download](https://archlinux.org/download/) ISO and GPG files
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# - Verify the ISO file: `$ pacman-key -v archlinux-<version>-x86_64.iso.sig`
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# - Create a bootable USB with: `# dd if=archlinux*.iso of=/dev/sdX && sync`
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#
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# UEFI setup:
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#
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# - Set boot mode to UEFI, disable Legacy mode entirely.
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# - Temporarily disable Secure Boot.
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# - Make sure a strong UEFI administrator password is set.
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# - Delete preloaded OEM keys for Secure Boot, allow custom ones.
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# - Set SATA operation to AHCI mode.
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#
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# Run installation:
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#
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# - Connect to wifi via: `# iwctl station wlan0 connect WIFI-NETWORK`
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# - Run: `# bash <(curl -sL https://link.rafe.li/dot)`
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#
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# WARNING: this script will destroy data on the selected disk.
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#
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set -uo pipefail
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trap 's=$?; echo "$0: Error on line "$LINENO": $BASH_COMMAND"; exit $s' ERR
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exec 1> >(tee "stdout.log")
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exec 2> >(tee "stderr.log" >&2)
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export SNAP_PAC_SKIP=y
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# Dialog
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BACKTITLE="Arch Linux installation"
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get_input() {
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title="$1"
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description="$2"
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input=$(dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --inputbox "$description" 0 0)
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echo "$input"
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}
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get_password() {
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title="$1"
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description="$2"
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while : ; do
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init_pass=$(dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --passwordbox "$description" 0 0)
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: "${init_pass:?dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --msgbox "Password cannot be empty.\nTry again." 0 0}"
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test_pass=$(dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --passwordbox "$description again" 0 0)
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if [[ "$init_pass" != "$test_pass" ]]; then
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dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --msgbox "Passwords did not match.\nTry again." 0 0
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else
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break
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fi
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done
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echo "$init_pass"
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}
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get_choice() {
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title="$1"
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description="$2"
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shift 2
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options=("$@")
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dialog --clear --stdout --backtitle "$BACKTITLE" --title "$title" --menu "$description" 0 0 0 "${options[@]}"
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}
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echo -e "\n### Checking UEFI boot mode"
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if [ ! -f /sys/firmware/efi/fw_platform_size ]; then
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echo >&2 "You must boot in UEFI mode to continue"
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exit 2
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fi
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echo -e "\n### Ensure the system clock is accurate"
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timedatectl set-ntp true
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hwclock --systohc --utc
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echo -e "\n### Setting keyboard layout to de-latin1"
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loadkeys de-latin1
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echo -e "\n### Installing additional tools"
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pacman -Sy --noconfirm --needed git reflector terminus-font dialog wget
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echo -e "\n### HiDPI screens"
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noyes=("Yes" "The font is too small" "No" "The font size is just fine")
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hidpi=$(get_choice "Font size" "Is your screen HiDPI?" "${noyes[@]}") || exit 1
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clear
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[[ "$hidpi" == "Yes" ]] && font="ter-132n" || font="ter-716n"
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setfont "$font"
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hostname=$(get_input "Hostname" "Enter hostname") || exit 1
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clear
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: "${hostname:?"hostname cannot be empty"}"
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user=$(get_input "User" "Enter username") || exit 1
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clear
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: "${user:?"user cannot be empty"}"
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password=$(get_password "User" "Enter password") || exit 1
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clear
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: "${password:?"password cannot be empty"}"
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devicelist=$(lsblk -dplnx size -o name,size | grep -Ev "boot|rpmb|loop" | tac | tr '\n' ' ')
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read -r -a devicelist <<< "$devicelist"
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device=$(get_choice "Installation" "Select installation disk" "${devicelist[@]}") || exit 1
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clear
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echo -e "\n### Setting up fastest mirrors"
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reflector --country 'Germany,France,' --protocol https --sort rate --save /etc/pacman.d/mirrorlist
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echo -e "\n### Setting up partitions"
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umount -R /mnt 2> /dev/null || true
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cryptsetup luksClose luks 2> /dev/null || true
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lsblk -plnx size -o name "${device}" | xargs -n1 wipefs --all
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sgdisk --clear "${device}" --new 1::-551MiB "${device}" --new 2::0 --typecode 2:ef00 "${device}"
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sgdisk --change-name=1:primary --change-name=2:ESP "${device}"
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part_root="$(ls "${device}"* | grep -E "^${device}p?1$")"
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part_boot="$(ls "${device}"* | grep -E "^${device}p?2$")"
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echo -e "\n### Formatting partitions"
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mkfs.vfat -n "EFI" -F 32 "${part_boot}"
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echo -n "${password}" | cryptsetup luksFormat --type luks2 --pbkdf argon2id --label luks "${part_root}"
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echo -n "${password}" | cryptsetup luksOpen --allow-discards --persistent "${part_root}" luks
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mkfs.btrfs -L btrfs /dev/mapper/luks
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echo -e "\n### Setting up BTRFS subvolumes"
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mount /dev/mapper/luks /mnt
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btrfs subvolume create /mnt/root
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btrfs subvolume create /mnt/home
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btrfs subvolume create /mnt/pkgs
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btrfs subvolume create /mnt/aurbuild
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btrfs subvolume create /mnt/archbuild
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btrfs subvolume create /mnt/docker
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btrfs subvolume create /mnt/logs
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btrfs subvolume create /mnt/temp
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btrfs subvolume create /mnt/swap
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btrfs subvolume create /mnt/snapshots
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umount /mnt
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mount -o noatime,compress=zstd,subvol=root /dev/mapper/luks /mnt
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mkdir -p /mnt/{mnt/btrfs-root,efi,home,var/{cache/pacman,log,tmp,lib/{aurbuild,archbuild,docker}},swap,.snapshots}
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mount "${part_boot}" /mnt/efi
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mount -o noatime,compress=zstd,subvol=/ /dev/mapper/luks /mnt/mnt/btrfs-root
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mount -o noatime,compress=zstd,subvol=home /dev/mapper/luks /mnt/home
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mount -o noatime,compress=zstd,subvol=pkgs /dev/mapper/luks /mnt/var/cache/pacman
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mount -o noatime,compress=zstd,subvol=aurbuild /dev/mapper/luks /mnt/var/lib/aurbuild
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mount -o noatime,compress=zstd,subvol=archbuild /dev/mapper/luks /mnt/var/lib/archbuild
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mount -o noatime,compress=zstd,subvol=docker /dev/mapper/luks /mnt/var/lib/docker
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mount -o noatime,compress=zstd,subvol=logs /dev/mapper/luks /mnt/var/log
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mount -o noatime,compress=zstd,subvol=temp /dev/mapper/luks /mnt/var/tmp
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mount -o noatime,compress=zstd,subvol=swap /dev/mapper/luks /mnt/swap
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mount -o noatime,compress=zstd,subvol=snapshots /dev/mapper/luks /mnt/.snapshots
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echo -e "\n### Configuring custom repo"
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mkdir "/mnt/var/cache/pacman/${user}-local"
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# if [[ "${user}" == "maximbaz" && "${hostname}" == "home-"* ]]; then
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# wget -m -nH -np -q --show-progress --progress=bar:force --reject='index.html*' --cut-dirs=2 -P "/mnt/var/cache/pacman/${user}-local" 'https://pkgbuild.com/~maximbaz/repo/'
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# rename -- 'maximbaz.' "${user}-local." "/mnt/var/cache/pacman/${user}-local"/*
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# else
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repo-add "/mnt/var/cache/pacman/${user}-local/${user}-local.db.tar"
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# fi
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if ! grep "${user}" /etc/pacman.conf > /dev/null; then
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cat >> /etc/pacman.conf << EOF
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[${user}-local]
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Server = file:///mnt/var/cache/pacman/${user}-local
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[maximbaz]
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Server = https://pkgbuild.com/~maximbaz/repo
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[options]
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CacheDir = /mnt/var/cache/pacman/pkg
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CacheDir = /mnt/var/cache/pacman/${user}-local
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EOF
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fi
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echo -e "\n### Installing packages"
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kernel_packages=(
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"linux"
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"linux-headers"
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"linux-lts"
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"linux-firmware"
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"intel-ucode"
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)
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fs_packages=(
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"btrfs-progs"
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"dosfstools"
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"e2fsprogs"
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)
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network_packages=(
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"iwd"
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"systemd-resolvconf"
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)
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basic_packages=(
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"man-db"
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"man-pages"
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"pacman-contrib"
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"neovim"
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"bash-completion"
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"git"
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"rsync"
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"openssh"
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"htop"
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"fzf"
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"sudo"
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)
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all_packages=(
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${kernel_packages[@]}
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${fs_packages[@]}
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${network_packages[@]}
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${basic_packages[@]}
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)
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pacstrap /mnt base base-devel arch-secure-boot ${all_packages[@]}
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echo -e "\n### Generating base config files"
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echo "cryptdevice=PARTLABEL=primary:luks:allow-discards root=LABEL=btrfs rootflags=subvol=root rw quiet mem_sleep_default=deep" > /mnt/etc/kernel/cmdline
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genfstab -L /mnt >> /mnt/etc/fstab
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echo "FONT=$font" > /mnt/etc/vconsole.conf
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echo "KEYMAP=de-latin1" >> /mnt/etc/vconsole.conf
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echo "${hostname}" > /mnt/etc/hostname
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sed -i 's/^#en_US\.UTF-8/en_US\.UTF-8/' /mnt/etc/locale.gen
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sed -i 's/^#de_DE\.UTF-8/de_DE\.UTF-8/' /mnt/etc/locale.gen
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echo "LANG=en_US.UTF-8" > /mnt/etc/locale.conf
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arch-chroot /mnt locale-gen
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ln -sf /usr/share/zoneinfo/Europe/Berlin /mnt/etc/localtime
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echo "$hostname" > /mnt/etc/hostname
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echo -e "127.0.0.1\tlocalhost" >>/mnt/etc/hosts
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echo -e "127.0.1.1\t$hostname" >>/mnt/etc/hosts
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echo -e "\n::1\tlocalhost" >>/mnt/etc/hosts
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# Propagate the systemd-resolved managed configuration to all clients (stub mode)
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ln -sf /run/systemd/resolve/stub-resolv.conf /mnt/etc/resolv.conf
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cat >/mnt/etc/systemd/network/20-wired.network <<EOF
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[Match]
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Name=en*
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[Network]
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DHCP=yes
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[DHCPv4]
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RouteMetric=10
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UseDomains=true
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[IPv6AcceptRA]
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RouteMetric=10
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UseDomains=yes
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EOF
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cat >/mnt/etc/systemd/network/25-wireless.network <<EOF
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[Match]
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Name=wl*
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[Network]
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DHCP=yes
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[DHCPv4]
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RouteMetric=20
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UseDomains=true
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[IPv6AcceptRA]
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RouteMetric=20
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UseDomains=yes
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EOF
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mkdir -p /mnt/etc/iwd
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cat >/mnt/etc/iwd/main.conf <<EOF
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[General]
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EnableNetworkConfiguration=true
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[Network]
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EnableIPv6=true
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EOF
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arch-chroot /mnt systemctl enable systemd-timesyncd fstrim.timer systemd-networkd systemd-resolved iwd
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cat >/mnt/etc/mkinitcpio.conf <<EOF
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MODULES=(i915)
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BINARIES=(/usr/bin/btrfs)
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FILES=()
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HOOKS=(base consolefont udev autodetect keyboard keymap modconf block encrypt filesystems fsck shutdown)
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EOF
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arch-chroot /mnt mkinitcpio -p linux
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arch-chroot /mnt arch-secure-boot initial-setup
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echo -e "\n### Configuring swap file"
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swap_size=$(free --mebi | awk '/Mem:/ {print $2}')
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swap_end=$(( $swap_size + 129 + 1 ))MiB
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truncate -s 0 /mnt/swap/swapfile
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chattr +C /mnt/swap/swapfile
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btrfs property set /mnt/swap/swapfile compression none
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fallocate -l $swap_end /mnt/swap/swapfile
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chmod 600 /mnt/swap/swapfile
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mkswap /mnt/swap/swapfile
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echo "/swap/swapfile none swap defaults 0 0" >> /mnt/etc/fstab
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# sudo
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sed -i 's/# \(%wheel ALL=(ALL:ALL) ALL\)/\1/' /mnt/etc/sudoers
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echo -e "\n### Creating user"
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arch-chroot /mnt useradd -m "$user"
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for group in wheel network video audio input storage power; do
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arch-chroot /mnt groupadd -rf "$group"
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arch-chroot /mnt gpasswd -a "$user" "$group"
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done
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echo "$user:$password" | arch-chroot /mnt chpasswd
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# disable root login
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arch-chroot /mnt passwd -dl root
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echo -e "\n### Setting permissions on the custom repo"
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arch-chroot /mnt chown -R "$user:$user" "/var/cache/pacman/${user}-local/"
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echo -e "\n### Reboot now, and after power off remember to unplug the installation USB"
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