Installing a base Manjaro using systemd boot and LUKS encryption
#
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# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
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#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# Copyright (c) 2021 @linux-aarhus
#
# ! IMPORTANT !
# ! GREAT CARE SHOULD BE EXCERCISED !
# ! A lot of assumptions are made - please review carefully !
#
# The root filesystem is using f2fs inside a LUKS container
#
# ! PLEASE REVIEW THE VARIABLES SECTION !
# ! AMEND THE VARIABLES AS NECESSARY !
#
if [ "$(id -u)" != "0" ]; then
echo "Please change to root context using su or sudo"
echo "Usage: bash sdboot-luks-setup.sh /dev/sdX"
echo ""
exit
fi
if [[ -z "$1" ]]; then
echo "No device specified ..."
echo "Usage: bash sdboot-luks-setup.sh /dev/sdX"
echo ""
exit
fi
TARGET="$1" # target device from first argument
KERNEL="5.10" # linux kernel number
KERNELPKG=$(echo linux$2 | sed 's/\.//') # kernel package name
MIRROR='https://repos.nix.dk/manjaro/' # build mirror
BRANCH='unstable' # target branch
TKEYMAP='dk' # target keyboard layout
TLOCALE_CONF='en_DK.UTF-8' # target locale.conf
TLOCALE_PRIMARY='en_DK.UTF-8 UTF-8' # target primary locale
TLOCALE_FALLBACK='en_US.UTF-8 UTF-8' # target fallback locale
TTIMEZONE='Europe/Copenhagen' # target timezone
THOSTNAME='manjaro' # target hostname
ITER_TIME="10000" # luks iteration time
RETRIES="3" # luks decryption retries
BASE_PKGS="base $KERNELPKG mkinitcpio networkmanager f2fs-tools bash-completion"
echo "==> Unmounting $TARGET"
umount -f "$TARGET"
echo "==> Preparing disk $TARGET"
sgdisk --zap-all "$TARGET"
sgdisk --mbrtogpt "$TARGET"
echo "==> Creating EFI partition"
sgdisk --new 1::+512M \
--typecode 1:ef00 \
--change-name 1:"EFI System" \
"$TARGET"
echo "==> Creating root partition"
sgdisk --new 2::: \
--typecode 2:8304 \
--change-name 2:"Linux x86-64 root" \
"$TARGET"
echo "==> wiping EFI partition"
wipefs -af "$TARGET"1
echo "==> wiping root partition"
wipefs -af "$TARGET"2
echo "==> formatting EFI partition"
mkfs.vfat -F32 "$TARGET"1
echo "==> ------------------------------------------"
echo "==> Setting up root LUKS container"
echo " -> WATCHOUT FOR THE UPPERCASE CONFIRMATION"
echo " -> If using CapsLock remember to toggle back"
cryptsetup --type luks2 \
--hash sha512 \
--iter-time $ITER_TIME \
--tries $RETRIES \
--use-urandom luksFormat \
"$TARGET"2
echo "==> ------------------------------------------"
echo "==> Open LUKS container"
cryptsetup open "$TARGET"2 cryptroot
echo "==> Formatting LUKS using f2fs"
mkfs.f2fs -f /dev/mapper/cryptroot
echo "==> Mounting root partition"
mount /dev/mapper/cryptroot /mnt
echo "==> Creating /boot"
mkdir /mnt/boot
echo "==> Mounting EFI partition"
mount "$TARGET"1 /mnt/boot
echo "==> Setting branch and mirror"
pacman-mirrors --api --set-branch $BRANCH --url $MIRROR
echo "==> Syncronizing pacman databases"
pacman -Syy
echo "==> installing base system with Linux kernel $2"
basestrap /mnt $BASE_PKGS
echo "==> Configure base ..."
echo " -> Creating file: vconsole.conf"
echo KEYMAP=$TKEYMAP > /mnt/etc/vconsole.conf
echo " -> Creating file: locale.conf"
echo LANG=$TLOCALE_CONF > /mnt/etc/locale.conf
echo " -> Creating file: hostname"
echo manjaro > /mnt/etc/hostname
echo " -> Creating file: hosts"
cat > /mnt/etc/hosts <<EOF
127.0.0.1 localhost
127.0.1.1 $THOSTNAME.localdomain $THOSTNAME
EOF
echo " -> Creating symlink: localtime"
ln -sf /usr/share/zoneinfo/$TTIMEZONE /mnt/etc/localtime
echo " -> Setting hardware clock"
manjaro-chroot /mnt hwclock --systohc
echo " -> Enabling services"
manjaro-chroot /mnt systemctl enable NetworkManager systemd-timesyncd
echo " -> Modifying file: locale.gen"
echo "$TLOCALE_PRIMARY" >> /mnt/etc/locale.gen
echo "$TLOCALE_FALLBACK" >> /mnt/etc/locale.gen
echo " -> Generating locale"
manjaro-chroot /mnt locale-gen
echo " -> Setting up mkinitcpio.conf"
sed -i '/MODULES=/c\MODULES=(f2fs)' \
/mnt/etc/mkinitcpio.conf
sed -i '/HOOKS=/c\HOOKS=(systemd keyboard keymap sd-vconsole block sd-encrypt autodetect modconf filesystems fsck)' \
/mnt/etc/mkinitcpio.conf
echo " -> Generating initrd"
manjaro-chroot /mnt mkinitcpio -P
echo " -> Installing bootloader"
bootctl --path=/mnt/boot install
echo " -> Updating entries with device UUID"
devuuid=$(lsblk -no uuid "$TARGET"2 | tail -1)
echo " -> Creating loader entry: manjaro.conf"
cat > /mnt/boot/loader/entries/manjaro.conf <<EOF
title Manjaro
linux /vmlinuz-$KERNEL-x86_64
initrd /initramfs-$KERNEL-x86_64.img
options root=/dev/mapper/cryptroot rd.luks.name=$devuuid=cryptroot
EOF
echo " -> Creating fallback entry: manjaro-fallback.conf"
cat > /mnt/boot/loader/entries/manjaro-fallback.conf <<EOF
title Manjaro (fallback)
linux /vmlinuz-$KERNEL-x86_64
initrd /initramfs-$KERNEL-fallback-x86_64.img
options root=/dev/mapper/cryptroot rd.luks.name=$devuuid=cryptroot
EOF
echo " -> Setting default loader"
sed -i '/default/c\/default manjaro\*/' /mnt/boot/loader/loader.conf
echo "==> Setting target branch and mirror"
pacman-mirrors --api --prefix /mnt --set-branch $BRANCH --url $MIRROR
echo " -> Setup your root password"
manjaro-chroot /mnt passwd
echo "==> Cleaning up"
echo " -> Unmounting partitions"
umount -R /mnt
echo " -> Closing LUKS container"
cryptsetup close /dev/mapper/cryptroot
sync
echo "==> Done! Minimal base is now installed and configured"
echo "==> TODO: Install GUI and configure swap"
echo " -> Manjaro iso profiles <https://gitlab.manjaro.org/profiles-and-settings/iso-profiles>
echo " -> Swap configuration <https://wiki.manjaro.org/index.php/Swap>"
echo ""