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z-arch/z.sh

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#!/bin/bash
set -e
# Configuration variables (will be populated via user selection or defaults if user press enter for each input)
selected_disk="/dev/vda"
seed_device="/dev/vda1"
sprout_device="/dev/vda2"
efi_device="/dev/vda3"
default_packages=(
base
linux
linux-firmware
btrfs-progs
nano
sudo
networkmanager
efibootmgr
grub
os-prober
base-devel
git
)
chrt() {
[[ "$1" == "--" ]] && shift
local cmd="$*"
arch-chroot /mnt /usr/bin/bash -c "$cmd"
}
# 1. Select Disk
echo "Available storage disks:"
mapfile -t disks < <(lsblk -p -dno NAME,SIZE,MODEL)
if [ ${#disks[@]} -eq 0 ]; then
echo "No disks found!"
exit 1
fi
for i in "${!disks[@]}"; do
printf "%d) %s\n" "$((i+1))" "${disks[i]}"
done
while true; do
def_idx=1
if [[ -n "$selected_disk" ]]; then
for i in "${!disks[@]}"; do
if [[ "${disks[i]}" == "$selected_disk"* ]]; then
def_idx=$((i+1))
break
fi
done
fi
read -r -p "Select a disk to choose partitions from (default $def_idx): " REPLY
REPLY=${REPLY:-$def_idx}
if [[ "$REPLY" =~ ^[0-9]+$ ]] && [[ "$REPLY" -gt 0 && "$REPLY" -le "${#disks[@]}" ]]; then
disk_info="${disks[$((REPLY-1))]}"
selected_disk=$(echo "$disk_info" | awk '{print $1}')
break
else
echo "Invalid selection."
fi
done
# 2. Select Partitions
get_partition() {
local prompt="$1"
local ps3_val="$2"
local var_name="$3"
local default_val="$4"
local parts=()
while IFS= read -r line; do
parts+=("$line")
done < <(lsblk -p -nlo NAME,SIZE,TYPE "$selected_disk" | awk '$3=="part" {printf "%s (%s)\n", $1, $2}')
if [ ${#parts[@]} -eq 0 ]; then
echo "No partitions found on $selected_disk!"
exit 1
fi
echo ""
echo "$prompt"
for i in "${!parts[@]}"; do
printf "%d) %s\n" "$((i+1))" "${parts[i]}"
done
while true; do
local def_idx=1
if [[ -n "$default_val" ]]; then
for i in "${!parts[@]}"; do
if [[ "${parts[i]}" == "$default_val"* ]]; then
def_idx=$((i+1))
break
fi
done
fi
read -r -p "$ps3_val (default $def_idx): " REPLY
REPLY=${REPLY:-$def_idx}
if [[ "$REPLY" =~ ^[0-9]+$ ]] && [[ "$REPLY" -gt 0 && "$REPLY" -le "${#parts[@]}" ]]; then
selection="${parts[$((REPLY-1))]}"
eval "$var_name=$(echo "$selection" | cut -d' ' -f1)"
break
else
echo "Invalid selection."
fi
done
}
get_partition "--- Select Seed Partition ---" "Seed device: " seed_device "$seed_device"
get_partition "--- Select Sprout Partition ---" "Sprout device: " sprout_device "$sprout_device"
get_partition "--- Select EFI Partition ---" "EFI device: " efi_device "$efi_device"
# Get Sprout PARTUUID for bootloader configuration
sprout_partuuid=$(blkid -s PARTUUID -o value "$sprout_device")
echo "Sprout PARTUUID: $sprout_partuuid"
echo ""
echo "Configuration Summary:"
echo "Seed device: $seed_device"
echo "Sprout device: $sprout_device"
echo "EFI device: $efi_device"
echo ""
read -r -p "Confirm formatting and installation? (yes/no/skip): " response
if [[ "$response" != "yes" && "$response" != "y" && "$response" != "Y" && "$response" != "skip" ]]; then
echo "Aborting."
exit 1
fi
if mountpoint -q /mnt; then
echo "/mnt is already mounted. Unmounting..."
umount -R /mnt
fi
if [[ "$response" == "skip" ]]; then
echo "Skipping formatting"
else
mkfs.btrfs -f -L SEED "$seed_device"
mkfs.btrfs -f -L SPROUT "$sprout_device"
mkfs.fat -F 32 -n EFI "$efi_device"
echo "Filesystems created successfully."
fi
mount -o subvol=/ "$seed_device" /mnt
# if subvolume @ exists remove and create new one
if btrfs subvolume list /mnt | grep -q "@$"; then
btrfs subvolume delete /mnt/@
fi
btrfs su cr /mnt/@
umount -R /mnt
mount -o subvol=/@ "$seed_device" /mnt
# ask user to input packages to install
read -r -p "Enter packages to install (space-separated): " packages_input
# convert input string to array
packages=($packages_input)
if [[ ${#packages[@]} -eq 0 ]]; then
packages=(${default_packages[@]})
echo "No packages specified. Defaulting to: ${packages[@]}"
else
echo "The following packages will be installed: ${packages[@]}"
fi
read -r -p "Continue with installation? (Yes/no): " response
# default to yes
if [[ "$response" == "no" || "$response" == "No" ]]; then
echo "Aborting."
exit 1
fi
pacstrap -K /mnt ${packages[@]}
mount -m "$efi_device" /mnt/efi
genfstab -U /mnt > /mnt/etc/fstab
# User Configuration
echo "--- System Configuration ---"
read -r -p "Enter hostname (default: arch-z): " target_hostname
target_hostname=${target_hostname:-arch-z}
read -r -p "Enter username (default: zeev): " target_user
target_user=${target_user:-zeev}
read -r -p "Enter timezone (default: Europe/Helsinki): " target_timezone
target_timezone=${target_timezone:-Europe/Helsinki}
echo "Set root password:"
while true; do
read -r -s -p "Password: " root_pass
echo
read -r -s -p "Confirm Password: " root_pass_confirm
echo
[ "$root_pass" = "$root_pass_confirm" ] && break
echo "Passwords do not match. Try again."
done
echo "Set password for user $target_user:"
while true; do
read -r -s -p "Password: " user_pass
echo
read -r -s -p "Confirm Password: " user_pass_confirm
echo
[ "$user_pass" = "$user_pass_confirm" ] && break
echo "Passwords do not match. Try again."
done
chroot_function() {
mkinitcpio_hooks=(
base
udev
autodetect
microcode
modconf
kms
keyboard
block
btrfs
filesystems
)
grub_install_options=(
--target=x86_64-efi
--efi-directory=/efi
--boot-directory=/boot
--bootloader-id=GRUB
)
installation_lines_array=(
"hwclock --systohc"
"echo '$target_hostname' > /etc/hostname"
"echo 'KEYMAP=us' > /etc/vconsole.conf"
"sed -i 's/^#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen"
"locale-gen"
"echo 'LANG=en_US.UTF-8' > /etc/locale.conf"
"ln -sf /usr/share/zoneinfo/$target_timezone /etc/localtime"
"sed -i \"s/^HOOKS=.*/HOOKS=(${mkinitcpio_hooks[*]})/\" /etc/mkinitcpio.conf"
"echo 'root:$root_pass' | chpasswd"
"useradd -m -G wheel -s /usr/bin/bash $target_user"
"echo '$target_user:$user_pass' | chpasswd"
"echo '$target_user ALL=(ALL:ALL) ALL' > /etc/sudoers.d/$target_user"
"systemctl enable systemd-timesyncd"
"grub-install ${grub_install_options[*]}"
"echo 'GRUB_DISABLE_OS_PROBER=false' >> /etc/default/grub"
"grub-mkconfig -o /boot/grub/grub.cfg"
"sed -i 's/root=UUID=[A-Fa-f0-9-]*/root=PARTUUID=$sprout_partuuid/g' /boot/grub/grub.cfg"
"passwd -l root"
"mkinitcpio -P"
)
local script
script=$(printf "%s\n" "${installation_lines_array[@]}")
chrt -- "$script"
}
chroot_function
#################################################3
echo "--- Finalizing Seed/Sprout setup ---"
echo "Unmounting /mnt..."
umount -R /mnt
echo "Converting $seed_device to a seed device..."
btrfstune -S 1 "$seed_device"
echo "Mounting seed device to add sprout..."
mount -o subvol=/@ "$seed_device" /mnt
echo "Adding $sprout_device as sprout device..."
btrfs device add -f "$sprout_device" /mnt
echo "Unmounting and remounting sprout device..."
umount -R /mnt
mount -o subvol=/@ "$sprout_device" /mnt
echo "Mounting EFI partition..."
mount -m "$efi_device" /mnt/efi
echo "Generating final fstab with PARTUUIDs..."
genfstab -t PARTUUID /mnt > /mnt/etc/fstab
echo ""
echo "################################################################"
echo "# INSTALLATION COMPLETE #"
echo "################################################################"
echo ""
read -r -p "Do you want to reboot now? (y/N): " reboot_ans
if [[ "$reboot_ans" =~ ^[Yy]$ ]]; then
reboot
else
echo "You can reboot manually by typing 'reboot'."
fi
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