update arch linux installer

archlinux/install.sh

@@ -0,0 +1,193 @@
+#!/bin/env bash
+set -euxo pipefail
+
+eprintln() {
+    cat <<<"$@" 1>&2
+}
+
+prompt() {
+    variable=$1
+    default=$2
+    prompt=$3
+    echo "$prompt"
+    read -rep "> " -i "$default" "${variable?}"
+
+}
+
+invert() {
+    value=$1
+    ((value ^= 1))
+    echo $value
+}
+
+# Get required user info
+## Check Network Status
+if [[ ! $(
+    ping -c 1 archlinux.org
+    invert $?
+) ]]; then
+    eprintln 'Connect to internet then rerun this script'
+    exit 1
+fi
+
+## get boot mode
+_is_uefi=$([[ -f /sys/firmware/efi/fw_platform_size ]] && echo 1 || echo 0)
+
+## Disk info
+mapfile -t devices < <(lsblk --paths --output NAME,SiZE --noheadings --nodeps)
+
+paste <(printf "%s\n" "${!devices[@]}") <(printf "%s\n" "${devices[@]}")
+prompt root_drive "" "Which device do you want to be root drive?"
+
+prompt want_home "" "Do you want to store home on another drive? (0 | 1)"
+
+if [[ "${want_home?}" -eq 1 ]]; then
+    prompt home_drive "" "Which device do you want to be home drive?"
+    prompt home_fmt "" "Do you want to format home? (0|1)"
+fi
+
+prompt want_swap "" "Do you want a swap space? (0 | 1)"
+
+if [[ "${want_swap?}" -eq 1 ]]; then
+    prompt swap_size "2g" "Swap size. Default is 2g. (accepting k/m/g/e/p suffix)"
+fi
+
+# Summary of what is going to happen and user confirmation
+
+# Pre-installation
+part_boot=",+1G,C12A7328-F81F-11D2-BA4B-00A0C93EC93B"
+part_root=","
+root_dev=$(echo ${devices[$root_drive]} | cut -d' ' -f 1)
+[[ "${want_home:-0}" -eq 1 ]] &&
+    home_dev=$(echo ${devices[$home_drive]} | cut -d' ' -f 1)
+
+## Partition disk(s)
+printf "label: GPT\n$part_boot\n$part_root" | sfdisk "$root_dev"
+[[ "${home_fmt:-0}" -eq 1 ]] &&
+    printf "label: GPT\n," | sfdisk "$home_dev"
+
+## Format disk(s)
+mkfs.fat -F 32 "$root_dev"1
+mkfs.btrfs -f "$root_dev"2
+[[ "${home_fmt:-0}" -eq 1 ]] && {
+    mkfs.btrfs -f "$home_dev"1
+}
+
+## Configure root btrfs
+mount --mkdir "$root_dev"2 /mnt
+btrfs subvolume create /mnt/@
+btrfs subvolume create /mnt/@/.snapshots
+mkdir /mnt/@/.snapshots/1
+btrfs subvolume create /mnt/@/.snapshots/1/snapshot
+mkdir -p /mnt/@/boot/grub2/
+# btrfs subvolume create /mnt/@/boot/grub2/i386-pc
+# btrfs subvolume create /mnt/@/boot/grub2/x86_64-efi
+btrfs subvolume create /mnt/@/home
+btrfs subvolume create /mnt/@/opt
+btrfs subvolume create /mnt/@/root
+btrfs subvolume create /mnt/@/srv
+btrfs subvolume create /mnt/@/tmp
+mkdir /mnt/@/usr/
+btrfs subvolume create /mnt/@/usr/local
+btrfs subvolume create /mnt/@/var
+chattr +C /mnt/@/var
+
+cat <<-'EOF' >>/mnt/@/.snapshots/1/info.xml
+    <?xml version="1.0"?>
+    <snapshot>
+        <type>single</type>
+        <num>1</num>
+        <date>$DATE</date>
+        <description>first root filesystem</description>
+    </snapshot>
+EOF
+
+btrfs subvolume set-default "$(btrfs subvolume list /mnt | grep "@/.snapshots/1/snapshot" | grep -oP '(?<=ID )[0-9]+')" /mnt
+
+umount /mnt
+
+# Mount Disk(s)
+mount --mkdir "$root_dev"2 /mnt
+mount --mkdir "$root_dev"2 /mnt/.snapshots -o subvol=@/.snapshots
+# mount --mkdir "$root_dev"2 /mnt/boot/grub2/i386-pc -o subvol=@/boot/grub2/i386-pc
+# mount --mkdir "$root_dev"2 /mnt/boot/grub2/x86_64-efi -o subvol=@/boot/grub2/x86_64-efi
+mount --mkdir "$root_dev"2 /mnt/home -o subvol=@/home
+mount --mkdir "$root_dev"2 /mnt/opt -o subvol=@/opt
+mount --mkdir "$root_dev"2 /mnt/root -o subvol=@/root
+mount --mkdir "$root_dev"2 /mnt/srv -o subvol=@/srv
+mount --mkdir "$root_dev"2 /mnt/tmp -o subvol=@/tmp
+mount --mkdir "$root_dev"2 /mnt/usr/local -o subvol=@/usr/local
+mount --mkdir "$root_dev"2 /mnt/var -o subvol=@/var
+mount --mkdir -o uid=0,gid=0,fmask=0077,dmask=0077 "$root_dev"1 /mnt/boot
+[[ "${want_home:-0}" -eq 1 ]] &&
+    mount --mkdir "$home_dev"1 /mnt/home
+
+### swap
+[[ "${want_swap:-0}" -eq 1 ]] && {
+    btrfs subvolume create /mnt/swap
+    btrfs filesystem mkswapfile --uuid clear /mnt/swap/file --size "${swap_size?}"
+    swapon /mnt/swap/file
+}
+
+# Installation
+## Get and set mirrors in order of rate
+reflector --save "/etc/pacman.d/mirrorlist" --protocol https,rsync --sort rate --threads 24 --latest 50
+## install essential packages
+pacstrap -K /mnt base linux-zen linux-firmware amd-ucode snapper
+# Configure Installation
+## fstab
+genfstab -U /mnt | tail -32 >> /mnt/etc/fstab
+## chroot
+arch-chroot /mnt bash << CHROOT
+### time
+ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime
+hwclock --systohc
+
+### localization
+sed -i 's/#en_US\\./en_US./' /etc/locale.gen
+locale-gen
+printf "LANG=en_US.UTF-8" >>/etc/locale.conf
+
+### network configuratio.n
+printf "zesktop" >>/etc/hostname
+cat << 'ETHERNET' >/etc/systemd/network/20-ethernet.network
+[Match]
+Name=en*
+Name=eth*
+
+[Network]
+DHCP=yes
+ETHERNET
+
+### initramfs
+sed --in-place 's/#COMPRESSION=\"zstd\"/COMPRESSION=\"zstd\"/' /etc/mkinitcpio.conf
+mkinitcpio -P
+
+### root password
+printf "password\npassword" | passwd
+
+### Boot loader
+bootctl install
+cat << 'EOF' >/boot/loader/loader.conf
+default  arch-zen.conf
+timeout  4
+console-mode max
+editor   no
+EOF
+cat << 'EOF' >/boot/loader/entries/arch-zen.conf
+title  Arch Linux Zen
+linux   /vmlinuz-linux-zen
+initrd  /amd-ucode.img
+initrd  /initramfs-linux-zen.img
+options root="UUID=$(blkid "$root_dev"2 | cut -d'"' -f2)" rw
+EOF
+
+### Setup snapper
+umount /.snapshots
+rm -rfv /.snapshots
+snapper --no-dbus -c root create-config /
+mount --mkdir "$root_dev"2 /.snapshots -o subvol=@/.snapshots
+CHROOT
+
+# Unmount disk(s) and reboot
+# Post-installation???