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@ -65,21 +65,21 @@ luks_prompt(){
fi fi
} }
luks_passphrase_prompt () { luks_password_prompt () {
if [ "${use_luks}" = '1' ]; then if [ "${use_luks}" = '1' ]; then
output 'Enter your encryption passphrase (the password will not be shown on the screen):' output 'Enter your encryption password (the password will not be shown on the screen):'
read -r -s luks_passphrase read -r -s luks_password
if [ -z "${luks_passphrase}" ]; then if [ -z "${luks_password}" ]; then
output 'You need to enter a passphrase.' output 'You need to enter a password.'
luks_passphrase_prompt luks_password_prompt
fi fi
output 'Confirm your encryption passphrase (the passphrase will not be shown on the screen):' output 'Confirm your encryption password (the password will not be shown on the screen):'
read -r -s luks_passphrase2 read -r -s luks_password2
if [ "${luks_passphrase}" != "${luks_passphrase2}" ]; then if [ "${luks_password}" != "${luks_password2}" ]; then
output 'Passphrases do not match, please try again.' output 'Passwords do not match, please try again.'
luks_passphrase_prompt luks_password_prompt
fi fi
fi fi
} }
@ -170,13 +170,13 @@ network_daemon_prompt(){
locale=en_US locale=en_US
kblayout=us kblayout=us
# Cleaning the TTY # Cleaning the TTY.
clear clear
# Initial prompts # Initial prompts
install_mode_selector install_mode_selector
luks_prompt luks_prompt
luks_passphrase_prompt luks_password_prompt
disk_prompt disk_prompt
username_prompt username_prompt
fullname_prompt fullname_prompt
@ -186,7 +186,7 @@ network_daemon_prompt
# Installation # Installation
## Updating the live environment usually causes more problems than its worth, and quite often can't be done without remounting cowspace with more capacity ## Updating the live environment usually causes more problems than its worth, and quite often can't be done without remounting cowspace with more capacity, especially at the end of any given month.
pacman -Sy pacman -Sy
## Installing curl ## Installing curl
@ -195,7 +195,7 @@ pacman -S --noconfirm curl
## Wipe the disk ## Wipe the disk
sgdisk --zap-all "${disk}" sgdisk --zap-all "${disk}"
## Creating a new partition scheme ## Creating a new partition scheme.
output "Creating new partition scheme on ${disk}." output "Creating new partition scheme on ${disk}."
sgdisk -g "${disk}" sgdisk -g "${disk}"
sgdisk -I -n 1:0:+512M -t 1:ef00 -c 1:'ESP' "${disk}" sgdisk -I -n 1:0:+512M -t 1:ef00 -c 1:'ESP' "${disk}"
@ -207,30 +207,30 @@ if [ "${use_luks}" = '1' ]; then
cryptroot='/dev/disk/by-partlabel/rootfs' cryptroot='/dev/disk/by-partlabel/rootfs'
fi fi
## Informing the Kernel of the changes ## Informing the Kernel of the changes.
output 'Informing the Kernel about the disk changes.' output 'Informing the Kernel about the disk changes.'
partprobe "${disk}" partprobe "${disk}"
## Formatting the ESP as FAT32 ## Formatting the ESP as FAT32.
output 'Formatting the EFI Partition as FAT32.' output 'Formatting the EFI Partition as FAT32.'
mkfs.fat -F 32 -s 2 "${ESP}" mkfs.fat -F 32 -s 2 "${ESP}"
## Creating a LUKS Container for the root partition ## Creating a LUKS Container for the root partition.
if [ "${use_luks}" = '1' ]; then if [ "${use_luks}" = '1' ]; then
output 'Creating LUKS Container for the root partition.' output 'Creating LUKS Container for the root partition.'
echo -n "${luks_passphrase}" | cryptsetup luksFormat --pbkdf pbkdf2 "${cryptroot}" -d - echo -n "${luks_password}" | cryptsetup luksFormat --pbkdf pbkdf2 "${cryptroot}" -d -
echo -n "${luks_passphrase}" | cryptsetup open "${cryptroot}" cryptroot -d - echo -n "${luks_password}" | cryptsetup open "${cryptroot}" cryptroot -d -
BTRFS='/dev/mapper/cryptroot' BTRFS='/dev/mapper/cryptroot'
else else
BTRFS='/dev/disk/by-partlabel/rootfs' BTRFS='/dev/disk/by-partlabel/rootfs'
fi fi
## Formatting the partition as BTRFS ## Formatting the partition as BTRFS.
output 'Formatting the rootfs as BTRFS.' output 'Formatting the rootfs as BTRFS.'
mkfs.btrfs -f "${BTRFS}" mkfs.btrfs --force "${BTRFS}"
mount "${BTRFS}" /mnt mount "${BTRFS}" /mnt
## Creating BTRFS subvolumes ## Creating BTRFS subvolumes.
output 'Creating BTRFS subvolumes.' output 'Creating BTRFS subvolumes.'
btrfs su cr /mnt/@ btrfs su cr /mnt/@
@ -292,7 +292,7 @@ echo "<?xml version=\"1.0\"?>
chmod 600 /mnt/@/.snapshots/1/info.xml chmod 600 /mnt/@/.snapshots/1/info.xml
## Mounting the newly created subvolumes ## Mounting the newly created subvolumes.
umount /mnt umount /mnt
output 'Mounting the newly created subvolumes.' output 'Mounting the newly created subvolumes.'
mount -o ssd,noatime,compress=zstd "${BTRFS}" /mnt mount -o ssd,noatime,compress=zstd "${BTRFS}" /mnt
@ -318,7 +318,7 @@ mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_sp
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_libvirt_images "${BTRFS}" /mnt/var/lib/libvirt/images mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_libvirt_images "${BTRFS}" /mnt/var/lib/libvirt/images
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_machines "${BTRFS}" /mnt/var/lib/machines mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_machines "${BTRFS}" /mnt/var/lib/machines
# GNOME requires /var/lib/gdm and /var/lib/AccountsService to be writeable when booting into a readonly snapshot # GNOME requires /var/lib/gdm and /var/lib/AccountsService to be writeable when booting into a readonly snapshot. Thus we sadly have to split them.
if [ "${install_mode}" = 'desktop' ]; then if [ "${install_mode}" = 'desktop' ]; then
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_gdm $BTRFS /mnt/var/lib/gdm mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_gdm $BTRFS /mnt/var/lib/gdm
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_AccountsService $BTRFS /mnt/var/lib/AccountsService mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_AccountsService $BTRFS /mnt/var/lib/AccountsService
@ -356,7 +356,7 @@ if [ "${network_daemon}" = 'networkmanager' ]; then
fi fi
if [ "${install_mode}" = 'desktop' ]; then if [ "${install_mode}" = 'desktop' ]; then
pacstrap /mnt flatpak gdm gnome-console gnome-control-center nautilus pipewire-alsa pipewire-pulse pipewire-jack pacstrap /mnt nautilus gdm gnome-console gnome-control-center flatpak pipewire-alsa pipewire-pulse pipewire-jack
elif [ "${install_mode}" = 'server' ]; then elif [ "${install_mode}" = 'server' ]; then
pacstrap /mnt openssh unbound pacstrap /mnt openssh unbound
fi fi
@ -374,31 +374,27 @@ fi
## Install snap-pac list otherwise we will have problems ## Install snap-pac list otherwise we will have problems
pacstrap /mnt snap-pac pacstrap /mnt snap-pac
## Generate /etc/fstab ## Generate /etc/fstab.
output 'Generating a new fstab.' output 'Generating a new fstab.'
genfstab -U /mnt >> /mnt/etc/fstab genfstab -U /mnt >> /mnt/etc/fstab
sed -i 's#,subvolid=258,subvol=/@/.snapshots/1/snapshot,subvol=@/.snapshots/1/snapshot##g' /mnt/etc/fstab sed -i 's#,subvolid=258,subvol=/@/.snapshots/1/snapshot,subvol=@/.snapshots/1/snapshot##g' /mnt/etc/fstab
output 'Setting up hostname, locale and keyboard layout' output 'Setting up hostname, locale and keyboard layout'
## Set hostname ## Set hostname.
echo "$hostname" > /mnt/etc/hostname echo "$hostname" > /mnt/etc/hostname
## Setting hosts file ## Setting hosts file.
echo 'Setting hosts file.' echo 'Setting hosts file.'
echo '# Loopback entries; do not change. echo "127.0.0.1 localhost
# For historical reasons, localhost precedes localhost.localdomain: ::1 localhost
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 127.0.1.1 $hostname.localdomain $hostname" > /mnt/etc/hosts
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
# See hosts(5) for proper format and other examples:
# 192.168.1.10 foo.example.org foo
# 192.168.1.13 bar.example.org bar' > /mnt/etc/hosts
## Setup locales ## Setup locales.
echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen
echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf
## Setup keyboard layout ## Setup keyboard layout.
echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf
## Configure /etc/mkinitcpio.conf ## Configure /etc/mkinitcpio.conf
@ -411,7 +407,7 @@ else
sed -i 's/^HOOKS=.*/HOOKS=(systemd autodetect microcode modconf keyboard sd-vconsole block)/g' /mnt/etc/mkinitcpio.conf sed -i 's/^HOOKS=.*/HOOKS=(systemd autodetect microcode modconf keyboard sd-vconsole block)/g' /mnt/etc/mkinitcpio.conf
fi fi
## Enable LUKS in GRUB and setting the UUID of the LUKS container ## Enable LUKS in GRUB and setting the UUID of the LUKS container.
if [ "${use_luks}" = '1' ]; then if [ "${use_luks}" = '1' ]; then
sed -i 's/#GRUB_ENABLE_CRYPTODISK=.*/GRUB_ENABLE_CRYPTODISK=y/g' /mnt/etc/default/grub sed -i 's/#GRUB_ENABLE_CRYPTODISK=.*/GRUB_ENABLE_CRYPTODISK=y/g' /mnt/etc/default/grub
fi fi
@ -427,8 +423,8 @@ GRUB_DEFAULT="1>2"
# Booting with BTRFS subvolume # Booting with BTRFS subvolume
GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true' >> /mnt/etc/default/grub GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true' >> /mnt/etc/default/grub
## Disable root subvol pinning ## Disable root subvol pinning.
## This is **extremely** important, as snapper expects to be able to set the default btrfs subvol ## This is **extremely** important, as snapper expects to be able to set the default btrfs subvol.
# shellcheck disable=SC2016 # shellcheck disable=SC2016
sed -i 's/rootflags=subvol=${rootsubvol}//g' /mnt/etc/grub.d/10_linux sed -i 's/rootflags=subvol=${rootsubvol}//g' /mnt/etc/grub.d/10_linux
# shellcheck disable=SC2016 # shellcheck disable=SC2016
@ -443,11 +439,11 @@ else
sed -i "s#quiet#root=${BTRFS} lsm=landlock,lockdown,yama,integrity,apparmor,bpf mitigations=auto,nosmt spectre_v2=on spectre_bhi=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret gather_data_sampling=force reg_file_data_sampling=on random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=force_isolation efi=disable_early_pci_dma iommu=force iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none ia32_emulation=0 page_alloc.shuffle=1 randomize_kstack_offset=on debugfs=off lockdown=confidentiality module.sig_enforce=1#g" /mnt/etc/default/grub sed -i "s#quiet#root=${BTRFS} lsm=landlock,lockdown,yama,integrity,apparmor,bpf mitigations=auto,nosmt spectre_v2=on spectre_bhi=on spec_store_bypass_disable=on tsx=off kvm.nx_huge_pages=force nosmt=force l1d_flush=on spec_rstack_overflow=safe-ret gather_data_sampling=force reg_file_data_sampling=on random.trust_bootloader=off random.trust_cpu=off intel_iommu=on amd_iommu=force_isolation efi=disable_early_pci_dma iommu=force iommu.passthrough=0 iommu.strict=1 slab_nomerge init_on_alloc=1 init_on_free=1 pti=on vsyscall=none ia32_emulation=0 page_alloc.shuffle=1 randomize_kstack_offset=on debugfs=off lockdown=confidentiality module.sig_enforce=1#g" /mnt/etc/default/grub
fi fi
## Add keyfile to the initramfs to avoid double password ## Add keyfile to the initramfs to avoid double password.
if [ "${use_luks}" = '1' ]; then if [ "${use_luks}" = '1' ]; then
dd bs=512 count=4 if=/dev/random of=/mnt/cryptkey/.root.key iflag=fullblock dd bs=512 count=4 if=/dev/random of=/mnt/cryptkey/.root.key iflag=fullblock
chmod 000 /mnt/cryptkey/.root.key chmod 000 /mnt/cryptkey/.root.key
echo -n "${luks_passphrase}" | cryptsetup luksAddKey /dev/disk/by-partlabel/rootfs /mnt/cryptkey/.root.key -d - echo -n "${luks_password}" | cryptsetup luksAddKey /dev/disk/by-partlabel/rootfs /mnt/cryptkey/.root.key -d -
sed -i 's#FILES=()#FILES=(/cryptkey/.root.key)#g' /mnt/etc/mkinitcpio.conf sed -i 's#FILES=()#FILES=(/cryptkey/.root.key)#g' /mnt/etc/mkinitcpio.conf
sed -i "s#module\.sig_enforce=1#module.sig_enforce=1 rd.luks.key=/cryptkey/.root.key#g" /mnt/etc/default/grub sed -i "s#module\.sig_enforce=1#module.sig_enforce=1 rd.luks.key=/cryptkey/.root.key#g" /mnt/etc/default/grub
fi fi
@ -469,7 +465,7 @@ unpriv curl -s https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Script
sed -i 's/nullok//g' /mnt/etc/pam.d/system-auth sed -i 's/nullok//g' /mnt/etc/pam.d/system-auth
## Harden SSH ## Harden SSH
## Arch annoyingly does not split openssh-server out so even desktop Arch will have the daemon ## Arch annoyingly does not split openssh-server out so even desktop Arch will have the daemon.
unpriv curl -s https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/ssh_config.d/10-custom.conf | tee /mnt/etc/ssh/ssh_config.d/10-custom.conf > /dev/null unpriv curl -s https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/ssh_config.d/10-custom.conf | tee /mnt/etc/ssh/ssh_config.d/10-custom.conf > /dev/null
unpriv curl -s https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config.d/10-custom.conf | tee /mnt/etc/ssh/sshd_config.d/10-custom.conf > /dev/null unpriv curl -s https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/ssh/sshd_config.d/10-custom.conf | tee /mnt/etc/ssh/sshd_config.d/10-custom.conf > /dev/null
@ -529,11 +525,11 @@ if [ "${network_daemon}" = 'networkmanager' ]; then
fi fi
if [ "${network_daemon}" = 'systemd-networkd' ]; then if [ "${network_daemon}" = 'systemd-networkd' ]; then
# arch-iso has working networking, booted does not # arch-iso has working networking, booted does not.
cp -ap /etc/systemd/network/20* /mnt/etc/systemd/network/ > /dev/null cp -ap /etc/systemd/network/20* /mnt/etc/systemd/network/ > /dev/null
fi fi
## Configuring the system ## Configuring the system.
arch-chroot /mnt /bin/bash -e <<EOF arch-chroot /mnt /bin/bash -e <<EOF
# Setting up timezone # Setting up timezone