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Author SHA1 Message Date
eeeb6f0f03
https for fwupd
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 05:14:52 -07:00
8f9bda05c0
Delete legacy scripts
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 05:13:20 -07:00
541d48f9ea
Use rd.luks.name
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 04:39:10 -07:00
dcbae1fd2d
Ree-add snapper configuration
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 04:05:10 -07:00
c74b56a456
Remove unnecessary prompt
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 03:50:33 -07:00
eefffc2d8b
Use systemd hook
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 03:39:38 -07:00
3e74eab90d
Lots of small fixes
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 03:31:45 -07:00
8dac3b4346
Split out snap-pac
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 01:52:10 -07:00
33197000d4
Remove unnecessary space_cache
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 00:55:59 -07:00
ac1ba91ef2
Remove unnecessary \
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 00:40:55 -07:00
3002feddd8
Fix partition label
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-31 00:39:51 -07:00
2ea12a051a
Add lsblk command
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 23:46:05 -07:00
cd0939fa64
Typo Fix
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 23:44:41 -07:00
13b27b4ca9
Finish cleanup
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 23:20:02 -07:00
325f80455f
Typo fix
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 22:15:53 -07:00
8fb069f128
Only install microcode if running on bare metal
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 22:11:58 -07:00
f72a957468
Cleanup mountpoints
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 22:03:12 -07:00
dcf1536d2a
Initial port to new script
Signed-off-by: Tommy <contact@tommytran.io>
2024-05-30 21:27:47 -07:00
4 changed files with 454 additions and 901 deletions

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@ -1,27 +0,0 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Additional context**
Add any other context about the problem here.

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@ -1,463 +0,0 @@
#!/usr/bin/env -S bash -e
# Cleaning the TTY.
clear
# Selecting the kernel flavor to install.
kernel_selector () {
echo "List of kernels:"
echo "1) Stable — Vanilla Linux kernel and modules, with a few patches applied."
echo "2) Hardened — A security-focused Linux kernel."
echo "3) Longterm — Long-term support (LTS) Linux kernel and modules."
echo "4) Zen Kernel — Optimized for desktop usage."
read -r -p "Insert the number of the corresponding kernel: " choice
echo "$choice will be installed"
case $choice in
1 ) kernel=linux
;;
2 ) kernel=linux-hardened
;;
3 ) kernel=linux-lts
;;
4 ) kernel=linux-zen
;;
* ) echo "You did not enter a valid selection."
kernel_selector
esac
}
## user input ##
# Selecting the target for the installation.
PS3="Select the disk where Arch Linux is going to be installed: "
select ENTRY in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme|vd");
do
DISK=$ENTRY
echo "Installing Arch Linux on $DISK."
break
done
# Confirming the disk selection.
read -r -p "This will delete the current partition table on $DISK. Do you agree [y/N]? " response
response=${response,,}
if [[ ! ("$response" =~ ^(yes|y)$) ]]; then
echo "Quitting."
exit
fi
#select kernel
kernel_selector
# Setting username.
read -r -p "Please enter name for a user account (leave empty to skip): " username
# Setting password.
if [[ -n $username ]]; then
read -r -p "Please enter a password for the user account: " password
fi
# Choose locales.
read -r -p "Please insert the locale you use in this format (xx_XX): " locale
# Choose keyboard layout.
read -r -p "Please insert the keyboard layout you use: " kblayout
## installation ##
# Updating the live environment usually causes more problems than its worth, and quite often can't be done without remounting cowspace with more capacity, especially at the end of any given month.
pacman -Sy
# Installing curl
pacman -S --noconfirm curl
# formatting the disk
wipefs -af "$DISK" &>/dev/null
sgdisk -Zo "$DISK" &>/dev/null
# Checking the microcode to install.
CPU=$(grep vendor_id /proc/cpuinfo)
if [[ $CPU == *"AuthenticAMD"* ]]; then
microcode=amd-ucode
else
microcode=intel-ucode
fi
# Creating a new partition scheme.
echo "Creating new partition scheme on $DISK."
parted -s "$DISK" \
mklabel gpt \
mkpart ESP fat32 1MiB 128MiB \
set 1 esp on \
mkpart cryptroot 128MiB 100% \
sleep 0.1
ESP="/dev/$(lsblk $DISK -o NAME,PARTLABEL | grep ESP| cut -d " " -f1 | cut -c7-)"
cryptroot="/dev/$(lsblk $DISK -o NAME,PARTLABEL | grep cryptroot | cut -d " " -f1 | cut -c7-)"
# Informing the Kernel of the changes.
echo "Informing the Kernel about the disk changes."
partprobe "$DISK"
# Formatting the ESP as FAT32.
echo "Formatting the EFI Partition as FAT32."
mkfs.fat -F 32 -s 2 $ESP &>/dev/null
# Creating a LUKS Container for the root partition.
echo "Creating LUKS Container for the root partition."
cryptsetup luksFormat --type luks1 $cryptroot
echo "Opening the newly created LUKS Container."
cryptsetup open $cryptroot cryptroot
BTRFS="/dev/mapper/cryptroot"
# Formatting the LUKS Container as BTRFS.
echo "Formatting the LUKS container as BTRFS."
mkfs.btrfs $BTRFS &>/dev/null
mount -o clear_cache,nospace_cache $BTRFS /mnt
# Creating BTRFS subvolumes.
echo "Creating BTRFS subvolumes."
btrfs su cr /mnt/@ &>/dev/null
btrfs su cr /mnt/@/.snapshots &>/dev/null
mkdir -p /mnt/@/.snapshots/1 &>/dev/null
btrfs su cr /mnt/@/.snapshots/1/snapshot &>/dev/null
btrfs su cr /mnt/@/boot/ &>/dev/null
btrfs su cr /mnt/@/home &>/dev/null
btrfs su cr /mnt/@/root &>/dev/null
btrfs su cr /mnt/@/srv &>/dev/null
btrfs su cr /mnt/@/var_log &>/dev/null
btrfs su cr /mnt/@/var_log_journal &>/dev/null
btrfs su cr /mnt/@/var_crash &>/dev/null
btrfs su cr /mnt/@/var_cache &>/dev/null
btrfs su cr /mnt/@/var_tmp &>/dev/null
btrfs su cr /mnt/@/var_spool &>/dev/null
btrfs su cr /mnt/@/var_lib_libvirt_images &>/dev/null
btrfs su cr /mnt/@/var_lib_machines &>/dev/null
btrfs su cr /mnt/@/var_lib_gdm &>/dev/null
btrfs su cr /mnt/@/var_lib_AccountsService &>/dev/null
btrfs su cr /mnt/@/cryptkey &>/dev/null
chattr +C /mnt/@/boot
chattr +C /mnt/@/srv
chattr +C /mnt/@/var_log
chattr +C /mnt/@/var_log_journal
chattr +C /mnt/@/var_crash
chattr +C /mnt/@/var_cache
chattr +C /mnt/@/var_tmp
chattr +C /mnt/@/var_spool
chattr +C /mnt/@/var_lib_libvirt_images
chattr +C /mnt/@/var_lib_machines
chattr +C /mnt/@/var_lib_gdm
chattr +C /mnt/@/var_lib_AccountsService
chattr +C /mnt/@/cryptkey
#Set the default BTRFS Subvol to Snapshot 1 before pacstrapping
btrfs subvolume set-default "$(btrfs subvolume list /mnt | grep "@/.snapshots/1/snapshot" | grep -oP '(?<=ID )[0-9]+')" /mnt
cat << EOF >> /mnt/@/.snapshots/1/info.xml
<?xml version="1.0"?>
<snapshot>
<type>single</type>
<num>1</num>
<date>1999-03-31 0:00:00</date>
<description>First Root Filesystem</description>
<cleanup>number</cleanup>
</snapshot>
EOF
chmod 600 /mnt/@/.snapshots/1/info.xml
# Mounting the newly created subvolumes.
umount /mnt
echo "Mounting the newly created subvolumes."
mount -o ssd,noatime,space_cache,compress=zstd:15 $BTRFS /mnt
mkdir -p /mnt/{boot,root,home,.snapshots,srv,tmp,/var/log,/var/crash,/var/cache,/var/tmp,/var/spool,/var/lib/libvirt/images,/var/lib/machines,/var/lib/gdm,/var/lib/AccountsService,/cryptkey}
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,noexec,subvol=@/boot $BTRFS /mnt/boot
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,subvol=@/root $BTRFS /mnt/root
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,subvol=@/home $BTRFS /mnt/home
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,subvol=@/.snapshots $BTRFS /mnt/.snapshots
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,subvol=@/srv $BTRFS /mnt/srv
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_log $BTRFS /mnt/var/log
# Toolbox (https://github.com/containers/toolbox) needs /var/log/journal to have dev, suid, and exec, Thus I am splitting the subvolume. Need to make the directory after /mnt/var/log/ has been mounted.
mkdir -p /mnt/var/log/journal
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,subvol=@/var_log_journal $BTRFS /mnt/var/log/journal
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_crash $BTRFS /mnt/var/crash
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_cache $BTRFS /mnt/var/cache
# Pamac needs /var/tmp to have exec. Thus I am not adding that flag.
# I am considering including pacmac-flatpak-gnome AUR package by default, since I am its maintainer.
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,subvol=@/var_tmp $BTRFS /mnt/var/tmp
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_spool $BTRFS /mnt/var/spool
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_libvirt_images $BTRFS /mnt/var/lib/libvirt/images
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,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. Thus we sadly have to split them.
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_gdm $BTRFS /mnt/var/lib/gdm
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_AccountsService $BTRFS /mnt/var/lib/AccountsService
# The encryption is splitted as we do not want to include it in the backup with snap-pac.
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/cryptkey $BTRFS /mnt/cryptkey
mkdir -p /mnt/boot/efi
mount -o nodev,nosuid,noexec $ESP /mnt/boot/efi
# Pacstrap (setting up a base sytem onto the new root).
echo "Installing the base system (it may take a while)."
pacstrap /mnt base ${kernel} ${microcode} linux-firmware grub grub-btrfs snapper snap-pac efibootmgr sudo networkmanager apparmor python-psutil python-notify2 nano gdm gnome-control-center gnome-terminal gnome-tweaks nautilus pipewire-pulse pipewire-alsa pipewire-jack flatpak firewalld zram-generator adobe-source-han-sans-otc-fonts adobe-source-han-serif-otc-fonts gnu-free-fonts reflector mlocate man-db chrony sbctl
# Routing jack2 through PipeWire.
echo "/usr/lib/pipewire-0.3/jack" > /mnt/etc/ld.so.conf.d/pipewire-jack.conf
# Generating /etc/fstab.
echo "Generating a new fstab."
genfstab -U /mnt >> /mnt/etc/fstab
sed -i 's#,subvolid=258,subvol=/@/.snapshots/1/snapshot,subvol=@/.snapshots/1/snapshot##g' /mnt/etc/fstab
# Setting hostname.
read -r -p "Please enter the hostname: " hostname
echo "$hostname" > /mnt/etc/hostname
# Setting hosts file.
echo "Setting hosts file."
cat > /mnt/etc/hosts <<EOF
127.0.0.1 localhost
::1 localhost
127.0.1.1 $hostname.localdomain $hostname
EOF
# Setting up locales.
echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen
echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf
# Setting up keyboard layout.
read -r -p "Please insert the keyboard layout you use: " kblayout
echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf
# Configuring /etc/mkinitcpio.conf
echo "Configuring /etc/mkinitcpio for ZSTD compression and LUKS hook."
sed -i 's,#COMPRESSION="zstd",COMPRESSION="zstd",g' /mnt/etc/mkinitcpio.conf
sed -i 's,modconf block filesystems keyboard,keyboard modconf block encrypt filesystems,g' /mnt/etc/mkinitcpio.conf
# Enabling LUKS in GRUB and setting the UUID of the LUKS container.
UUID=$(blkid $cryptroot | cut -f2 -d'"')
sed -i 's/#\(GRUB_ENABLE_CRYPTODISK=y\)/\1/' /mnt/etc/default/grub
echo "" >> /mnt/etc/default/grub
echo -e "# Booting with BTRFS subvolume\nGRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true" -o /mnt/etc/default/grub
sed -i 's#rootflags=subvol=${rootsubvol}##g' /mnt/etc/grub.d/10_linux
sed -i 's#rootflags=subvol=${rootsubvol}##g' /mnt/etc/grub.d/20_linux_xen
# Enabling CPU Mitigations
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_cpu_mitigations.cfg -o /mnt/etc/grub.d/40_cpu_mitigations.cfg
# Distrusting the CPU
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_distrust_cpu.cfg -o /mnt/etc/grub.d/40_distrust_cpu.cfg
# Enabling IOMMU
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_enable_iommu.cfg -o /mnt/etc/grub.d/40_enable_iommu.cfg
# Enabling NTS
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /mnt/etc/chrony.conf
# Setting GRUB configuration file permissions
chmod 755 /mnt/etc/grub.d/*
# Adding keyfile to the initramfs to avoid double password.
dd bs=512 count=4 if=/dev/random of=/mnt/cryptkey/.root.key iflag=fullblock &>/dev/null
chmod 000 /mnt/cryptkey/.root.key &>/dev/null
cryptsetup -v luksAddKey /dev/disk/by-partlabel/cryptroot /mnt/cryptkey/.root.key
sed -i "s#quiet#cryptdevice=UUID=$UUID:cryptroot root=$BTRFS lsm=landlock,lockdown,yama,apparmor,bpf cryptkey=rootfs:/cryptkey/.root.key#g" /mnt/etc/default/grub
sed -i 's#FILES=()#FILES=(/cryptkey/.root.key)#g' /mnt/etc/mkinitcpio.conf
# Configure AppArmor Parser caching
sed -i 's/#write-cache/write-cache/g' /mnt/etc/apparmor/parser.conf
sed -i 's,#Include /etc/apparmor.d/,Include /etc/apparmor.d/,g' /mnt/etc/apparmor/parser.conf
# Blacklisting kernel modules
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf -o /mnt/etc/modprobe.d/30_security-misc.conf
chmod 600 /mnt/etc/modprobe.d/*
# Security kernel settings.
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf -o /mnt/etc/sysctl.d/990-security-misc.conf
sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /mnt/etc/sysctl.d/990-security-misc.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_silent-kernel-printk.conf -o /mnt/etc/sysctl.d/30_silent-kernel-printk.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_security-misc_kexec-disable.conf -o /mnt/etc/sysctl.d/30_security-misc_kexec-disable.conf
chmod 600 /mnt/etc/sysctl.d/*
# Remove nullok from system-auth
sed -i 's/nullok//g' /mnt/etc/pam.d/system-auth
# Disable coredump
echo "* hard core 0" >> /mnt/etc/security/limits.conf
# Disable su for non-wheel users
bash -c 'cat > /mnt/etc/pam.d/su' <<-'EOF'
#%PAM-1.0
auth sufficient pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.
#auth sufficient pam_wheel.so trust use_uid
# Uncomment the following line to require a user to be in the "wheel" group.
auth required pam_wheel.so use_uid
auth required pam_unix.so
account required pam_unix.so
session required pam_unix.so
EOF
# ZRAM configuration
bash -c 'cat > /mnt/etc/systemd/zram-generator.conf' <<-'EOF'
[zram0]
zram-fraction = 1
max-zram-size = 8192
EOF
# Randomize Mac Address.
bash -c 'cat > /mnt/etc/NetworkManager/conf.d/00-macrandomize.conf' <<-'EOF'
[device]
wifi.scan-rand-mac-address=yes
[connection]
wifi.cloned-mac-address=random
ethernet.cloned-mac-address=random
connection.stable-id=${CONNECTION}/${BOOT}
EOF
chmod 600 /mnt/etc/NetworkManager/conf.d/00-macrandomize.conf
# Enable IPv6 privacy extensions
bash -c 'cat > /mnt/etc/NetworkManager/conf.d/ip6-privacy.conf' <<-'EOF'
[connection]
ipv6.ip6-privacy=2
EOF
chmod 600 /mnt/etc/NetworkManager/conf.d/ip6-privacy.conf
# Configuring the system.
arch-chroot /mnt /bin/bash -e <<EOF
# Setting up timezone.
ln -sf /usr/share/zoneinfo/$(curl -s http://ip-api.com/line?fields=timezone) /etc/localtime &>/dev/null
# Setting up clock.
hwclock --systohc
# Generating locales.my keys aren't even on
echo "Generating locales."
locale-gen &>/dev/null
# Generating a new initramfs.
echo "Creating a new initramfs."
chmod 600 /boot/initramfs-linux* &>/dev/null
mkinitcpio -P &>/dev/null
# Snapper configuration
umount /.snapshots
rm -r /.snapshots
snapper --no-dbus -c root create-config /
btrfs subvolume delete /.snapshots
mkdir /.snapshots
mount -a
chmod 750 /.snapshots
# Installing GRUB.
echo "Installing GRUB on /boot."
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB --modules="normal test efi_gop efi_uga search echo linux all_video gfxmenu gfxterm_background gfxterm_menu gfxterm loadenv configfile gzio part_gpt cryptodisk luks gcry_rijndael gcry_sha256 btrfs" --disable-shim-lock &>/dev/null
# Creating grub config file.
echo "Creating GRUB config file."
grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null
# Adding user with sudo privilege
if [ -n "$username" ]; then
echo "Adding $username with root privilege."
useradd -m $username
usermod -aG wheel $username
groupadd -r audit
gpasswd -a $username audit
fi
EOF
# Enable AppArmor notifications
# Must create ~/.config/autostart first
mkdir -p -m 700 /mnt/home/${username}/.config/autostart/
bash -c "cat > /mnt/home/${username}/.config/autostart/apparmor-notify.desktop" <<-'EOF'
[Desktop Entry]
Type=Application
Name=AppArmor Notify
Comment=Receive on screen notifications of AppArmor denials
TryExec=aa-notify
Exec=aa-notify -p -s 1 -w 60 -f /var/log/audit/audit.log
StartupNotify=false
NoDisplay=true
EOF
chmod 700 /mnt/home/${username}/.config/autostart/apparmor-notify.desktop
arch-chroot /mnt chown -R $username:$username /home/${username}/.config
# Setting user password.
[ -n "$username" ] && echo "Setting user password for ${username}." && echo -e "${password}\n${password}" | arch-chroot /mnt passwd "$username" &>/dev/null
# Giving wheel user sudo access.
sed -i 's/# \(%wheel ALL=(ALL\(:ALL\|\)) ALL\)/\1/g' /mnt/etc/sudoers
# Change audit logging group
echo "log_group = audit" >> /mnt/etc/audit/auditd.conf
# Enabling audit service.
systemctl enable auditd --root=/mnt &>/dev/null
# Enabling auto-trimming service.
systemctl enable fstrim.timer --root=/mnt &>/dev/null
# Enabling NetworkManager.
systemctl enable NetworkManager --root=/mnt &>/dev/null
# Enabling GDM.
systemctl enable gdm --root=/mnt &>/dev/null
# Enabling AppArmor.
echo "Enabling AppArmor."
systemctl enable apparmor --root=/mnt &>/dev/null
# Enabling Firewalld.
echo "Enabling Firewalld."
systemctl enable firewalld --root=/mnt &>/dev/null
# Enabling Bluetooth Service (This is only to fix the visual glitch with gnome where it gets stuck in the menu at the top right).
# IF YOU WANT TO USE BLUETOOTH, YOU MUST REMOVE IT FROM THE LIST OF BLACKLISTED KERNEL MODULES IN /mnt/etc/modprobe.d/30_security-misc.conf
systemctl enable bluetooth --root=/mnt &>/dev/null
# Enabling Reflector timer.
echo "Enabling Reflector."
systemctl enable reflector.timer --root=/mnt &>/dev/null
# Enabling systemd-oomd.
echo "Enabling systemd-oomd."
systemctl enable systemd-oomd --root=/mnt &>/dev/null
# Disabling systemd-timesyncd
systemctl disable systemd-timesyncd --root=/mnt &>/dev/null
# Enabling chronyd
systemctl enable chronyd --root=/mnt &>/dev/null
# Enabling Snapper automatic snapshots.
echo "Enabling Snapper and automatic snapshots entries."
systemctl enable snapper-timeline.timer --root=/mnt &>/dev/null
systemctl enable snapper-cleanup.timer --root=/mnt &>/dev/null
systemctl enable grub-btrfs.path --root=/mnt &>/dev/null
# Setting umask to 077.
sed -i 's/022/077/g' /mnt/etc/profile
echo "" >> /mnt/etc/bash.bashrc
echo "umask 077" >> /mnt/etc/bash.bashrc
# Finishing up
echo "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)."
exit

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#!/bin/bash
#!/bin/bash
# Copyright (C) 2021-2024 Thien Tran, Tommaso Chiti
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
output(){
echo -e '\e[36m'"$1"'\e[0m';
}
unpriv(){
sudo -u nobody "$@"
}
install_mode_selector() {
output 'Is this a desktop or server installation?'
output '1) Desktop'
output '2) Server'
output 'Insert the number of your selection:'
read -r choice
case $choice in
1 ) install_mode=desktop
;;
2 ) install_mode=server
;;
* ) output 'You did not enter a valid selection.'
install_mode_selector
esac
}
# Selecting the kernel flavor to install.
kernel_selector () {
output 'List of kernels:'
output '1) Stable — Vanilla Linux kernel and modules, with a few patches applied.'
output '2) Hardened — A security-focused Linux kernel.'
output '3) Longterm — Long-term support (LTS) Linux kernel and modules.'
output '4) Zen Kernel — Optimized for desktop usage.'
output 'Insert the number of your selection:'
read -r choice
case $choice in
1 ) kernel=linux
;;
2 ) kernel=linux-hardened
;;
3 ) kernel=linux-lts
;;
4 ) kernel=linux-zen
;;
* ) output 'You did not enter a valid selection.'
kernel_selector
esac
}
luks_password_prompt () {
output 'Enter your encryption password (the password will not be shown on the screen):'
read -r -s luks_password
if [ -z "${luks_password}" ]; then
output 'You need to enter a password.'
luks_password_prompt
fi
output 'Confirm your encryption password (the password will not be shown on the screen):'
read -r -s luks_password2
if [ "${luks_password}" != "${luks_password2}" ]; then
output 'Passwords do not match, please try again.'
luks_password_prompt
fi
}
disk_prompt (){
lsblk
output 'Please select the number of the corresponding disk (e.g. 1):'
select entry in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme|vd");
do
disk="${entry}"
output "Arch Linux will be installed on the following disk: ${disk}"
break
done
}
username_prompt (){
output 'Enter your username:'
read -r username
if [ -z "${username}" ]; then
output 'You need to enter a username.'
username_prompt
fi
}
user_password_prompt () {
output 'Enter your user password (the password will not be shown on the screen):'
read -r -s user_password
if [ -z "${user_password}" ]; then
output 'You need to enter a password.'
user_password_prompt
fi
output 'Confirm your user password (the password will not be shown on the screen):'
read -r -s user_password2
if [ "${user_password}" != "${user_password2}" ]; then
output 'Passwords do not match, please try again.'
user_password_prompt
fi
}
hostname_prompt (){
output 'Enter your hostname:'
read -r hostname
if [ -z "${hostname}" ]; then
output 'You need to enter a hostname.'
hostname_prompt
fi
}
# Set hardcoded variables (temporary, these will be replaced by future prompts)
locale=en_US
kblayout=us
# Cleaning the TTY.
clear
# Initial prompts
install_mode_selector
kernel_selector
luks_password_prompt
disk_prompt
username_prompt
user_password_prompt
hostname_prompt
# Check if this is a VM
virtualization=$(systemd-detect-virt)
# Installation
## Updating the live environment usually causes more problems than its worth, and quite often can't be done without remounting cowspace with more capacity, especially at the end of any given month.
pacman -Sy
## Installing curl
pacman -S --noconfirm curl
## Formatting the disk
wipefs -af "${disk}" &>/dev/null
sgdisk -Zo "${disk}" &>/dev/null
## Creating a new partition scheme.
output "Creating new partition scheme 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.
output 'Informing the Kernel about the disk changes.'
partprobe "${disk}"
## Formatting the ESP as FAT32.
output 'Formatting the EFI Partition as FAT32.'
mkfs.fat -F 32 -s 2 "${ESP}" &>/dev/null
## Creating a LUKS Container for the root partition.
output 'Creating LUKS Container for the root partition.'
echo -n "${luks_password}" | cryptsetup luksFormat --type luks1 ${cryptroot} -d - &>/dev/null
echo -n "${luks_password}" | cryptsetup open ${cryptroot} cryptroot -d -
BTRFS='/dev/mapper/cryptroot'
## Formatting the LUKS Container as BTRFS.
output 'Formatting the LUKS container as BTRFS.'
mkfs.btrfs "${BTRFS}" &>/dev/null
mount "${BTRFS}" /mnt
## Creating BTRFS subvolumes.
output 'Creating BTRFS subvolumes.'
btrfs su cr /mnt/@ &>/dev/null
btrfs su cr /mnt/@/.snapshots &>/dev/null
mkdir -p /mnt/@/.snapshots/1 &>/dev/null
btrfs su cr /mnt/@/.snapshots/1/snapshot &>/dev/null
btrfs su cr /mnt/@/boot/ &>/dev/null
btrfs su cr /mnt/@/home &>/dev/null
btrfs su cr /mnt/@/root &>/dev/null
btrfs su cr /mnt/@/srv &>/dev/null
btrfs su cr /mnt/@/var_log &>/dev/null
btrfs su cr /mnt/@/var_log_journal &>/dev/null
btrfs su cr /mnt/@/var_crash &>/dev/null
btrfs su cr /mnt/@/var_cache &>/dev/null
btrfs su cr /mnt/@/var_tmp &>/dev/null
btrfs su cr /mnt/@/var_spool &>/dev/null
btrfs su cr /mnt/@/var_lib_libvirt_images &>/dev/null
btrfs su cr /mnt/@/var_lib_machines &>/dev/null
btrfs su cr /mnt/@/var_lib_gdm &>/dev/null
btrfs su cr /mnt/@/var_lib_AccountsService &>/dev/null
btrfs su cr /mnt/@/cryptkey &>/dev/null
## Disable CoW on subvols we are not taking snapshots of
chattr +C /mnt/@/boot
chattr +C /mnt/@/home
chattr +C /mnt/@/root
chattr +C /mnt/@/srv
chattr +C /mnt/@/var_log
chattr +C /mnt/@/var_log_journal
chattr +C /mnt/@/var_crash
chattr +C /mnt/@/var_cache
chattr +C /mnt/@/var_tmp
chattr +C /mnt/@/var_spool
chattr +C /mnt/@/var_lib_libvirt_images
chattr +C /mnt/@/var_lib_machines
chattr +C /mnt/@/var_lib_gdm
chattr +C /mnt/@/var_lib_AccountsService
chattr +C /mnt/@/cryptkey
## Set the default BTRFS Subvol to Snapshot 1 before pacstrapping
btrfs subvolume set-default "$(btrfs subvolume list /mnt | grep "@/.snapshots/1/snapshot" | grep -oP '(?<=ID )[0-9]+')" /mnt
## Temporarily hardcode the date here, will make it work with proper date later.
echo '<?xml version="1.0"?>
<snapshot>
<type>single</type>
<num>1</num>
<date>1999-03-31 0:00:00</date>
<description>First Root Filesystem</description>
<cleanup>number</cleanup>
</snapshot>' > /mnt/@/.snapshots/1/info.xml
chmod 600 /mnt/@/.snapshots/1/info.xml
## Mounting the newly created subvolumes.
umount /mnt
output 'Mounting the newly created subvolumes.'
mount -o ssd,noatime,compress=zstd "${BTRFS}" /mnt
mkdir -p /mnt/{boot,root,home,.snapshots,srv,tmp,/var/log,/var/crash,/var/cache,/var/tmp,/var/spool,/var/lib/libvirt/images,/var/lib/machines,/var/lib/gdm,/var/lib/AccountsService,/cryptkey}
mount -o ssd,noatime,compress=zstd,nodev,nosuid,noexec,subvol=@/boot "${BTRFS}" /mnt/boot
mount -o ssd,noatime,compress=zstd,nodev,nosuid,subvol=@/root "${BTRFS}" /mnt/root
mount -o ssd,noatime,compress=zstd,nodev,nosuid,subvol=@/home "${BTRFS}" /mnt/home
mount -o ssd,noatime,compress=zstd,subvol=@/.snapshots "${BTRFS}" /mnt/.snapshots
mount -o ssd,noatime,compress=zstd,subvol=@/srv "${BTRFS}" /mnt/srv
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_log "${BTRFS}" /mnt/var/log
### Toolbox (https://github.com/containers/toolbox) needs /var/log/journal to have dev, suid, and exec, Thus I am splitting the subvolume. Need to make the directory after /mnt/var/log/ has been mounted.
mkdir -p /mnt/var/log/journal
mount -o ssd,noatime,compress=zstd,nodatacow,subvol=@/var_log_journal "${BTRFS}" /mnt/var/log/journal
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_crash "${BTRFS}" /mnt/var/crash
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_cache "${BTRFS}" /mnt/var/cache
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_tmp "${BTRFS}" /mnt/var/tmp
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/var_spool "${BTRFS}" /mnt/var/spool
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
### The encryption is splitted as we do not want to include it in the backup with snap-pac.
mount -o ssd,noatime,compress=zstd,nodatacow,nodev,nosuid,noexec,subvol=@/cryptkey "${BTRFS}" /mnt/cryptkey
mkdir -p /mnt/boot/efi
mount -o nodev,nosuid,noexec "${ESP}" /mnt/boot/efi
## Check the microcode to install.
if [ "${virtualization}" = 'none' ]; then
CPU=$(grep vendor_id /proc/cpuinfo)
if [[ "${CPU}" == *"AuthenticAMD"* ]]; then
microcode=amd-ucode
else
microcode=intel-ucode
fi
fi
## Pacstrap
output 'Installing the base system (it may take a while).'
if [ "${install_mode}" = 'desktop' ]; then
pacstrap /mnt base ${kernel} ${microcode} apparmor chrony firewalld grub grub-btrfs linux-firmware nano networkmanager reflector snapper sudo zram-generator nautilus gdm gnome-console gnome-control-center pipewire-alsa pipewire-pulse pipewire-jack
elif [ "${install_mode}" = 'server' ]; then
pacstrap /mnt base ${kernel} ${microcode} apparmor chrony firewalld grub grub-btrfs linux-firmware nano networkmanager reflector snapper sudo zram-generator openssh
fi
if [ "${virtualization}" = 'none' ]; then
pacstrap /mnt sbctl fwupd
echo 'UriSchemes=file;https' | sudo tee -a /mnt/etc/fwupd/fwupd.conf
fi
pacstrap /mnt snap-pac
## Generate /etc/fstab.
output 'Generating a new fstab.'
genfstab -U /mnt >> /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'
## Set hostname.
echo "$hostname" > /mnt/etc/hostname
## Setting hosts file.
echo 'Setting hosts file.'
echo "127.0.0.1 localhost
::1 localhost
127.0.1.1 $hostname.localdomain $hostname" > /mnt/etc/hosts
## Setup locales.
echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen
echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf
## Setup keyboard layout.
echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf
## Configure /etc/mkinitcpio.conf
output 'Configuring /etc/mkinitcpio for ZSTD compression and LUKS hook.'
sed -i 's/#COMPRESSION="zstd"/COMPRESSION="zstd"/g' /mnt/etc/mkinitcpio.conf
sed -i 's/^HOOKS=.*/HOOKS=(systemd autodetect microcode modconf kms keyboard sd-vconsole block sd-encrypt filesystems)/g' /mnt/etc/mkinitcpio.conf
## Enable LUKS in GRUB and setting the UUID of the LUKS container.
sed -i 's/#GRUB_ENABLE_CRYPTODISK=.*/GRUB_ENABLE_CRYPTODISK=y/g' /mnt/etc/default/grub
echo '' >> /mnt/etc/default/grub
echo '# Booting with BTRFS subvolume
GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true' >> /mnt/etc/default/grub
sed -i 's/rootflags=subvol=${rootsubvol}//g' /mnt/etc/grub.d/10_linux
sed -i 's/rootflags=subvol=${rootsubvol}//g' /mnt/etc/grub.d/20_linux_xen
## Kernel hardening
UUID=$(blkid -s UUID -o value "${cryptroot}")
sed -i "s#quiet#rd.luks.name=${UUID}=cryptroot root=${BTRFS} 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
## Add keyfile to the initramfs to avoid double password.
dd bs=512 count=4 if=/dev/random of=/mnt/cryptkey/.root.key iflag=fullblock &>/dev/null
chmod 000 /mnt/cryptkey/.root.key &>/dev/null
echo -n "${luks_password}" | cryptsetup luksAddKey /dev/disk/by-partlabel/cryptroot /mnt/cryptkey/.root.key -d -
sed -i "s#module.sig_enforce=1#module.sig_enforce=1 cryptkey=rootfs:/cryptkey/.root.key#g" /mnt/etc/default/grub
sed -i 's#FILES=()#FILES=(/cryptkey/.root.key)#g' /mnt/etc/mkinitcpio.conf
## Continue kernel hardening
unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf | tee /mnt/etc/modprobe.d/30_security-misc.conf
unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf | tee /mnt/etc/sysctl.d/990-security-misc.conf
sed -i 's/kernel.yama.ptrace_scope.*/kernel.yama.ptrace_scope=3/g' /mnt/etc/sysctl.d/990-security-misc.conf
unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_silent-kernel-printk.conf | tee /mnt/etc/sysctl.d/30_silent-kernel-printk.conf
unpriv curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_security-misc_kexec-disable.conf | tee /mnt/etc/sysctl.d/30_security-misc_kexec-disable.conf
## Setup NTS
unpriv curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf | tee /mnt/etc/chrony.conf
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/sysconfig/chronyd | tee /etc/sysconfig/chronyd
## Remove nullok from system-auth
sed -i 's/nullok//g' /mnt/etc/pam.d/system-auth
## Disable coredump
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/security/limits.d/30-disable-coredump.conf | tee /mnt/etc/security/limits.d/30-disable-coredump.conf
## ZRAM configuration
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/systemd/zram-generator.conf | tee /mnt/etc/systemd/zram-generator.conf
## Setup Networking
if [ "${install_mode}" = "desktop" ]; then
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/00-macrandomize.conf | tee /mnt/etc/NetworkManager/conf.d/00-macrandomize.conf
unpriv curl https://raw.githubusercontent.com/TommyTran732/Linux-Setup-Scripts/main/etc/NetworkManager/conf.d/01-transient-hostname.conf | tee /mnt/etc/NetworkManager/conf.d/01-transient-hostname.conf
fi
unpriv curl https://gitlab.com/divested/brace/-/raw/master/brace/usr/lib/systemd/system/NetworkManager.service.d/99-brace.conf | tee /mnt/etc/systemd/system/NetworkManager.service.d/99-brace.conf
## Configuring the system.
arch-chroot /mnt /bin/bash -e <<EOF
# Setting up timezone.
# Temporarily hardcoding here
ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime &>/dev/null
# Setting up clock.
hwclock --systohc
# Generating locales.my keys aren't even on
echo "Generating locales."
locale-gen &>/dev/null
# Generating a new initramfs.
echo "Creating a new initramfs."
chmod 600 /boot/initramfs-linux* &>/dev/null
mkinitcpio -P &>/dev/null
# Installing GRUB.
echo "Installing GRUB on /boot."
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB --modules="normal test efi_gop efi_uga search echo linux all_video gfxmenu gfxterm_background gfxterm_menu gfxterm loadenv configfile gzio part_gpt cryptodisk luks gcry_rijndael gcry_sha256 btrfs" --disable-shim-lock &>/dev/null
# Creating grub config file.
echo "Creating GRUB config file."
grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null
# Adding user with sudo privilege
if [ -n "$username" ]; then
echo "Adding $username with root privilege."
useradd -m $username
usermod -aG wheel $username
fi
# Snapper configuration
umount /.snapshots
rm -r /.snapshots
snapper --no-dbus -c root create-config /
btrfs subvolume delete /.snapshots
mkdir /.snapshots
mount -a
chmod 750 /.snapshots
EOF
## Set user password.
[ -n "$username" ] && echo "Setting user password for ${username}." && echo -e "${user_password}\n${user_password}" | arch-chroot /mnt passwd "$username" &>/dev/null
## Give wheel user sudo access.
sed -i 's/# \(%wheel ALL=(ALL\(:ALL\|\)) ALL\)/\1/g' /mnt/etc/sudoers
## Enabling openssh server
if [ "${install_mode}" = 'server' ]; then
systemctl enable sshd --root=/mnt &>/dev/null
fi
## Enable services
systemctl enable apparmor --root=/mnt &>/dev/null
systemctl enable chronyd --root=/mnt &>/dev/null
systemctl enable firewalld --root=/mnt &>/dev/null
systemctl enable fstrim.timer --root=/mnt &>/dev/null
systemctl enable grub-btrfs.path --root=/mnt &>/dev/null
systemctl enable NetworkManager --root=/mnt &>/dev/null
systemctl enable reflector.timer --root=/mnt &>/dev/null
systemctl enable snapper-timeline.timer --root=/mnt &>/dev/null
systemctl enable snapper-cleanup.timer --root=/mnt &>/dev/null
systemctl enable systemd-oomd --root=/mnt &>/dev/null
systemctl disable systemd-timesyncd --root=/mnt &>/dev/null
## Set umask to 077.
sudo sed -i 's/^UMASK.*/UMASK 077/g' /mnt/etc/login.defs
sudo sed -i 's/^HOME_MODE/#HOME_MODE/g' /mnt/etc/login.defs
sudo sed -i 's/^USERGROUPS_ENAB.*/USERGROUPS_ENAB no/g' /mnt/etc/login.defs
sudo sed -i 's/umask 022/umask 077/g' /mnt/etc/bash.bashrc
# Finish up
echo "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)."
exit

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#!/usr/bin/env -S bash -e
# Cleaning the TTY.
clear
# Selecting the kernel flavor to install.
kernel_selector () {
echo "List of kernels:"
echo "1) Stable — Vanilla Linux kernel and modules, with a few patches applied."
echo "2) Hardened — A security-focused Linux kernel."
echo "3) Longterm — Long-term support (LTS) Linux kernel and modules."
echo "4) Zen Kernel — Optimized for desktop usage."
read -r -p "Insert the number of the corresponding kernel: " choice
echo "$choice will be installed"
case $choice in
1 ) kernel=linux
;;
2 ) kernel=linux-hardened
;;
3 ) kernel=linux-lts
;;
4 ) kernel=linux-zen
;;
* ) echo "You did not enter a valid selection."
kernel_selector
esac
}
## user input ##
# Selecting the target for the installation.
PS3="Select the disk where Arch Linux is going to be installed: "
select ENTRY in $(lsblk -dpnoNAME|grep -P "/dev/sd|nvme|vd");
do
DISK=$ENTRY
echo "Installing Arch Linux on $DISK."
break
done
# Confirming the disk selection.
read -r -p "This will delete the current partition table on $DISK. Do you agree [y/N]? " response
response=${response,,}
if [[ ! ("$response" =~ ^(yes|y)$) ]]; then
echo "Quitting."
exit
fi
#select kernel
kernel_selector
# Setting username.
read -r -p "Please enter name for a user account (leave empty to skip): " username
# Setting password.
if [[ -n $username ]]; then
read -r -p "Please enter a password for the user account: " password
fi
# Choose locales.
read -r -p "Please insert the locale you use in this format (xx_XX): " locale
# Choose keyboard layout.
read -r -p "Please insert the keyboard layout you use: " kblayout
## installation ##
# Updating the live environment usually causes more problems than its worth, and quite often can't be done without remounting cowspace with more capacity, especially at the end of any given month.
pacman -Sy
# Installing curl
pacman -S --noconfirm curl
# formatting the disk
wipefs -af "$DISK" &>/dev/null
sgdisk -Zo "$DISK" &>/dev/null
# Checking the microcode to install.
CPU=$(grep vendor_id /proc/cpuinfo)
if [[ $CPU == *"AuthenticAMD"* ]]; then
microcode=amd-ucode
else
microcode=intel-ucode
fi
# Creating a new partition scheme.
echo "Creating new partition scheme on $DISK."
parted -s "$DISK" \
mklabel gpt \
mkpart ESP fat32 1MiB 128MiB \
set 1 esp on \
mkpart cryptroot 128MiB 100% \
sleep 0.1
ESP="/dev/$(lsblk $DISK -o NAME,PARTLABEL | grep ESP| cut -d " " -f1 | cut -c7-)"
cryptroot="/dev/$(lsblk $DISK -o NAME,PARTLABEL | grep cryptroot | cut -d " " -f1 | cut -c7-)"
# Informing the Kernel of the changes.
echo "Informing the Kernel about the disk changes."
partprobe "$DISK"
# Formatting the ESP as FAT32.
echo "Formatting the EFI Partition as FAT32."
mkfs.fat -F 32 -s 2 $ESP &>/dev/null
# Creating a LUKS Container for the root partition.
echo "Creating LUKS Container for the root partition."
cryptsetup luksFormat --type luks1 $cryptroot
echo "Opening the newly created LUKS Container."
cryptsetup open $cryptroot cryptroot
BTRFS="/dev/mapper/cryptroot"
# Formatting the LUKS Container as BTRFS.
echo "Formatting the LUKS container as BTRFS."
mkfs.btrfs $BTRFS &>/dev/null
mount -o clear_cache,nospace_cache $BTRFS /mnt
# Creating BTRFS subvolumes.
echo "Creating BTRFS subvolumes."
btrfs su cr /mnt/@ &>/dev/null
btrfs su cr /mnt/@/.snapshots &>/dev/null
mkdir -p /mnt/@/.snapshots/1 &>/dev/null
btrfs su cr /mnt/@/.snapshots/1/snapshot &>/dev/null
btrfs su cr /mnt/@/boot/ &>/dev/null
btrfs su cr /mnt/@/home &>/dev/null
btrfs su cr /mnt/@/root &>/dev/null
btrfs su cr /mnt/@/srv &>/dev/null
btrfs su cr /mnt/@/var_log &>/dev/null
btrfs su cr /mnt/@/var_log_journal &>/dev/null
btrfs su cr /mnt/@/var_crash &>/dev/null
btrfs su cr /mnt/@/var_cache &>/dev/null
btrfs su cr /mnt/@/var_tmp &>/dev/null
btrfs su cr /mnt/@/var_spool &>/dev/null
btrfs su cr /mnt/@/var_lib_libvirt_images &>/dev/null
btrfs su cr /mnt/@/var_lib_machines &>/dev/null
btrfs su cr /mnt/@/var_lib_gdm &>/dev/null
btrfs su cr /mnt/@/var_lib_AccountsService &>/dev/null
btrfs su cr /mnt/@/cryptkey &>/dev/null
chattr +C /mnt/@/boot
chattr +C /mnt/@/srv
chattr +C /mnt/@/var_log
chattr +C /mnt/@/var_log_journal
chattr +C /mnt/@/var_crash
chattr +C /mnt/@/var_cache
chattr +C /mnt/@/var_tmp
chattr +C /mnt/@/var_spool
chattr +C /mnt/@/var_lib_libvirt_images
chattr +C /mnt/@/var_lib_machines
chattr +C /mnt/@/var_lib_gdm
chattr +C /mnt/@/var_lib_AccountsService
chattr +C /mnt/@/cryptkey
#Set the default BTRFS Subvol to Snapshot 1 before pacstrapping
btrfs subvolume set-default "$(btrfs subvolume list /mnt | grep "@/.snapshots/1/snapshot" | grep -oP '(?<=ID )[0-9]+')" /mnt
cat << EOF >> /mnt/@/.snapshots/1/info.xml
<?xml version="1.0"?>
<snapshot>
<type>single</type>
<num>1</num>
<date>1999-03-31 0:00:00</date>
<description>First Root Filesystem</description>
<cleanup>number</cleanup>
</snapshot>
EOF
chmod 600 /mnt/@/.snapshots/1/info.xml
# Mounting the newly created subvolumes.
umount /mnt
echo "Mounting the newly created subvolumes."
mount -o ssd,noatime,space_cache,compress=zstd:15 $BTRFS /mnt
mkdir -p /mnt/{boot,root,home,.snapshots,srv,tmp,/var/log,/var/crash,/var/cache,/var/tmp,/var/spool,/var/lib/libvirt/images,/var/lib/machines,/var/lib/gdm,/var/lib/AccountsService,/cryptkey}
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,noexec,subvol=@/boot $BTRFS /mnt/boot
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,subvol=@/root $BTRFS /mnt/root
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodev,nosuid,subvol=@/home $BTRFS /mnt/home
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,subvol=@/.snapshots $BTRFS /mnt/.snapshots
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,subvol=@/srv $BTRFS /mnt/srv
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_log $BTRFS /mnt/var/log
# Toolbox (https://github.com/containers/toolbox) needs /var/log/journal to have dev, suid, and exec, Thus I am splitting the subvolume. Need to make the directory after /mnt/var/log/ has been mounted.
mkdir -p /mnt/var/log/journal
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,subvol=@/var_log_journal $BTRFS /mnt/var/log/journal
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_crash $BTRFS /mnt/var/crash
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_cache $BTRFS /mnt/var/cache
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_tmp $BTRFS /mnt/var/tmp
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_spool $BTRFS /mnt/var/spool
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_libvirt_images $BTRFS /mnt/var/lib/libvirt/images
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/var_lib_machines $BTRFS /mnt/var/lib/machines
# The encryption is splitted as we do not want to include it in the backup with snap-pac.
mount -o ssd,noatime,space_cache=v2,autodefrag,compress=zstd:15,discard=async,nodatacow,nodev,nosuid,noexec,subvol=@/cryptkey $BTRFS /mnt/cryptkey
mkdir -p /mnt/boot/efi
mount -o nodev,nosuid,noexec $ESP /mnt/boot/efi
# Pacstrap (setting up a base sytem onto the new root).
# As I said above, I am considering replacing gnome-software with pamac-flatpak-gnome as PackageKit seems very buggy on Arch Linux right now.
echo "Installing the base system (it may take a while)."
pacstrap /mnt base ${kernel} ${microcode} linux-firmware grub grub-btrfs snapper snap-pac efibootmgr sudo networkmanager apparmor firewalld zram-generator reflector chrony sbctl openssh fwupd
# Generating /etc/fstab.
echo "Generating a new fstab."
genfstab -U /mnt >> /mnt/etc/fstab
sed -i 's#,subvolid=258,subvol=/@/.snapshots/1/snapshot,subvol=@/.snapshots/1/snapshot##g' /mnt/etc/fstab
# Setting hostname.
read -r -p "Please enter the hostname: " hostname
echo "$hostname" > /mnt/etc/hostname
# Setting hosts file.
echo "Setting hosts file."
cat > /mnt/etc/hosts <<EOF
127.0.0.1 localhost
::1 localhost
127.0.1.1 $hostname.localdomain $hostname
EOF
# Setting up locales.
echo "$locale.UTF-8 UTF-8" > /mnt/etc/locale.gen
echo "LANG=$locale.UTF-8" > /mnt/etc/locale.conf
# Setting up keyboard layout.
read -r -p "Please insert the keyboard layout you use: " kblayout
echo "KEYMAP=$kblayout" > /mnt/etc/vconsole.conf
# Configuring /etc/mkinitcpio.conf
echo "Configuring /etc/mkinitcpio for ZSTD compression and LUKS hook."
sed -i 's,#COMPRESSION="zstd",COMPRESSION="zstd",g' /mnt/etc/mkinitcpio.conf
sed -i 's,HOOKS=(base udev autodetect microcode modconf kms keyboard keymap consolefont block filesystems fsck),HOOKS=(base udev autodetect microcode modconf kms keyboard keymap consolefont block encrypt filesystems fsck),g' /mnt/etc/mkinitcpio.conf
# Enabling LUKS in GRUB and setting the UUID of the LUKS container.
UUID=$(blkid $cryptroot | cut -f2 -d'"')
sed -i 's/#\(GRUB_ENABLE_CRYPTODISK=y\)/\1/' /mnt/etc/default/grub
echo "" >> /mnt/etc/default/grub
echo -e "# Booting with BTRFS subvolume\nGRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION=true" >> /mnt/etc/default/grub
sed -i 's#rootflags=subvol=${rootsubvol}##g' /mnt/etc/grub.d/10_linux
sed -i 's#rootflags=subvol=${rootsubvol}##g' /mnt/etc/grub.d/20_linux_xen
# Enabling CPU Mitigations
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_cpu_mitigations.cfg -o /mnt/etc/grub.d/40_cpu_mitigations.cfg
# Distrusting the CPU
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_distrust_cpu.cfg -o /mnt/etc/grub.d/40_distrust_cpu.cfg
# Enabling IOMMU
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/default/grub.d/40_enable_iommu.cfg -o /mnt/etc/grub.d/40_enable_iommu.cfg
# Enabling NTS
curl https://raw.githubusercontent.com/GrapheneOS/infrastructure/main/chrony.conf -o /mnt/etc/chrony.conf
# Setting GRUB configuration file permissions
chmod 755 /mnt/etc/grub.d/*
# Adding keyfile to the initramfs to avoid double password.
dd bs=512 count=4 if=/dev/random of=/mnt/cryptkey/.root.key iflag=fullblock &>/dev/null
chmod 000 /mnt/cryptkey/.root.key &>/dev/null
cryptsetup -v luksAddKey /dev/disk/by-partlabel/cryptroot /mnt/cryptkey/.root.key
sed -i "s#quiet#cryptdevice=UUID=$UUID:cryptroot root=$BTRFS lsm=landlock,lockdown,yama,apparmor,bpf cryptkey=rootfs:/cryptkey/.root.key#g" /mnt/etc/default/grub
sed -i 's#FILES=()#FILES=(/cryptkey/.root.key)#g' /mnt/etc/mkinitcpio.conf
# Configure AppArmor Parser caching
sed -i 's/#write-cache/write-cache/g' /mnt/etc/apparmor/parser.conf
sed -i 's,#Include /etc/apparmor.d/,Include /etc/apparmor.d/,g' /mnt/etc/apparmor/parser.conf
# Blacklisting kernel modules
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/modprobe.d/30_security-misc.conf -o /mnt/etc/modprobe.d/30_security-misc.conf
chmod 600 /mnt/etc/modprobe.d/*
# Security kernel settings.
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/usr/lib/sysctl.d/990-security-misc.conf -o /mnt/etc/sysctl.d/990-security-misc.conf
sed -i 's/kernel.yama.ptrace_scope=2/kernel.yama.ptrace_scope=3/g' /mnt/etc/sysctl.d/990-security-misc.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_silent-kernel-printk.conf -o /mnt/etc/sysctl.d/30_silent-kernel-printk.conf
curl https://raw.githubusercontent.com/Kicksecure/security-misc/master/etc/sysctl.d/30_security-misc_kexec-disable.conf -o /mnt/etc/sysctl.d/30_security-misc_kexec-disable.conf
chmod 600 /mnt/etc/sysctl.d/*
# Remove nullok from system-auth
sed -i 's/nullok//g' /mnt/etc/pam.d/system-auth
# Disable coredump
echo "* hard core 0" >> /mnt/etc/security/limits.conf
# Disable su for non-wheel users
bash -c 'cat > /mnt/etc/pam.d/su' <<-'EOF'
#%PAM-1.0
auth sufficient pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.
#auth sufficient pam_wheel.so trust use_uid
# Uncomment the following line to require a user to be in the "wheel" group.
auth required pam_wheel.so use_uid
auth required pam_unix.so
account required pam_unix.so
session required pam_unix.so
EOF
# ZRAM configuration
bash -c 'cat > /mnt/etc/systemd/zram-generator.conf' <<-'EOF'
[zram0]
zram-fraction = 1
max-zram-size = 8192
EOF
# Configuring the system.
arch-chroot /mnt /bin/bash -e <<EOF
# Setting up timezone.
ln -sf /usr/share/zoneinfo/$(curl -s http://ip-api.com/line?fields=timezone) /etc/localtime &>/dev/null
# Setting up clock.
hwclock --systohc
# Generating locales.my keys aren't even on
echo "Generating locales."
locale-gen &>/dev/null
# Generating a new initramfs.
echo "Creating a new initramfs."
chmod 600 /boot/initramfs-linux* &>/dev/null
mkinitcpio -P &>/dev/null
# Snapper configuration
umount /.snapshots
rm -r /.snapshots
snapper --no-dbus -c root create-config /
btrfs subvolume delete /.snapshots
mkdir /.snapshots
mount -a
chmod 750 /.snapshots
# Installing GRUB.
echo "Installing GRUB on /boot."
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB --modules="normal test efi_gop efi_uga search echo linux all_video gfxmenu gfxterm_background gfxterm_menu gfxterm loadenv configfile gzio part_gpt cryptodisk luks gcry_rijndael gcry_sha256 btrfs" --disable-shim-lock &>/dev/null
# Creating grub config file.
echo "Creating GRUB config file."
grub-mkconfig -o /boot/grub/grub.cfg &>/dev/null
# Adding user with sudo privilege
if [ -n "$username" ]; then
echo "Adding $username with root privilege."
useradd -m $username
usermod -aG wheel $username
groupadd -r audit
gpasswd -a $username audit
fi
EOF
# Setting user password.
[ -n "$username" ] && echo "Setting user password for ${username}." && echo -e "${password}\n${password}" | arch-chroot /mnt passwd "$username" &>/dev/null
# Giving wheel user sudo access.
sed -i 's/# \(%wheel ALL=(ALL\(:ALL\|\)) ALL\)/\1/g' /mnt/etc/sudoers
# Change audit logging group
echo "log_group = audit" >> /mnt/etc/audit/auditd.conf
# Enabling audit service.
systemctl enable auditd --root=/mnt &>/dev/null
# Enabling openssh server
systemctl enable sshd --root=/mnt &>/dev/null
# Enabling auto-trimming service.
systemctl enable fstrim.timer --root=/mnt &>/dev/null
# Enabling NetworkManager.
systemctl enable NetworkManager --root=/mnt &>/dev/null
# Enabling AppArmor.
echo "Enabling AppArmor."
systemctl enable apparmor --root=/mnt &>/dev/null
# Enabling Firewalld.
echo "Enabling Firewalld."
systemctl enable firewalld --root=/mnt &>/dev/null
# Enabling Reflector timer.
echo "Enabling Reflector."
systemctl enable reflector.timer --root=/mnt &>/dev/null
# Enabling systemd-oomd.
echo "Enabling systemd-oomd."
systemctl enable systemd-oomd --root=/mnt &>/dev/null
# Disabling systemd-timesyncd
systemctl disable systemd-timesyncd --root=/mnt &>/dev/null
# Enabling chronyd
systemctl enable chronyd --root=/mnt &>/dev/null
# Enabling Snapper automatic snapshots.
echo "Enabling Snapper and automatic snapshots entries."
systemctl enable snapper-timeline.timer --root=/mnt &>/dev/null
systemctl enable snapper-cleanup.timer --root=/mnt &>/dev/null
systemctl enable grub-btrfs.path --root=/mnt &>/dev/null
# Setting umask to 077.
sed -i 's/022/077/g' /mnt/etc/profile
echo "" >> /mnt/etc/bash.bashrc
echo "umask 077" >> /mnt/etc/bash.bashrc
# Finishing up
echo "Done, you may now wish to reboot (further changes can be done by chrooting into /mnt)."
exit