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Minimal instructions for installing arch linux on an UEFI NVMe system with full system encryption using dm-crypt and luks
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# Install ARCH Linux with encrypted file-system and UEFI | |
# The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description. | |
# Download the archiso image from https://www.archlinux.org/ | |
# Copy to a usb-drive | |
dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux | |
# Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration. | |
# Set swiss-french keymap | |
loadkeys fr_CH-latin1 | |
# This assumes a wifi only system... | |
wifi-menu | |
# Create partitions | |
cgdisk /dev/nvme0n1 | |
1 512MB EFI partition # Hex code ef00 | |
2 100% size partiton # (to be encrypted) Hex code 8300 | |
# Create EFI partition | |
mkfs.vfat -F32 /dev/nvme0n1p1 | |
# Setup the encryption of the system with 256 bit effective size | |
cryptsetup -c aes-xts-plain64 --key-size 512 --hash sha512 --iter-time 3000 -y --use-random luksFormat /dev/nvme0n1p2 | |
cryptsetup luksOpen /dev/nvme0n1p2 luks | |
# Create encrypted partitions | |
# This creates one partions for root, modify if /home or other partitions should be on separate partitions | |
pvcreate /dev/mapper/luks | |
vgcreate vg0 /dev/mapper/luks | |
lvcreate --size 16G vg0 --name swap | |
lvcreate -l +100%FREE vg0 --name root | |
# Create filesystems on encrypted partitions | |
mkfs.ext4 /dev/mapper/vg0-root | |
mkswap /dev/mapper/vg0-swap | |
# Mount the new system | |
mount /dev/mapper/vg0-root /mnt # /mnt is the installed system | |
swapon /dev/mapper/vg0-swap # Not needed but a good thing to test | |
mkdir /mnt/boot | |
mount /dev/nvme0n1p1 /mnt/boot | |
# Install the system also includes stuff needed for starting wifi when first booting into the newly installed system | |
# Unless vim and zsh are desired these can be removed from the command. Dialog is needed by wifi-menu | |
pacstrap /mnt base base-devel zsh vim git sudo efibootmgr dialog wpa_supplicant | |
# 'install' fstab | |
genfstab -pU /mnt >> /mnt/etc/fstab | |
# Make /tmp a ramdisk (add the following line to /mnt/etc/fstab) | |
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0 | |
# Change relatime on all non-boot partitions to noatime (reduces wear if using an SSD) | |
# Enter the new system | |
arch-chroot /mnt /bin/bash | |
# Setup system clock | |
ln -s /usr/share/zoneinfo/Europe/Zurich /etc/localtime | |
hwclock --systohc --utc | |
# Set the hostname | |
echo MYHOSTNAME > /etc/hostname | |
# Generate locale | |
#Uncomment wanted locales in /etc/locale.gen | |
vim /etc/locale.gen | |
locale-gen | |
localectl set-locale LANG=en_US.UTF-8 | |
#To avoid problems with gnome-terminal set locale system wide | |
#Do NOT set LC_ALL=C. It overrides all the locale vars and messes up special characters | |
#Pay attention to the UTF-8. Capital letters ! | |
echo LANG=en_US.UTF-8 >> /etc/locale.conf | |
echo LC_ALL= >> /etc/locale.conf | |
# Set password for root | |
passwd | |
# Add real user remove -s flag if you don't whish to use zsh | |
# useradd -m -g users -G wheel,storage,power -s /bin/zsh MYUSERNAME | |
# passwd MYUSERNAME | |
# Configure mkinitcpio with modules needed for the initrd image | |
vim /etc/mkinitcpio.conf | |
# Add 'ext4' to MODULES | |
# Add 'encrypt' and 'lvm2' to HOOKS before filesystems | |
# Add 'resume' after 'lvm2' (also has to be after 'udev') | |
# Regenerate initrd image | |
mkinitcpio -p linux | |
# Setup systembootd (grub will not work on nvme at this moment) | |
bootctl --path=/boot install | |
# Create loader.conf | |
echo 'default arch' >> /boot/loader/loader.conf | |
echo 'timeout 5' >> /boot/loader/loader.conf | |
# Create arch.conf (or XYZ.conf for default XYZ in loader.conf) | |
vim /boot/loader/entries/arch.conf | |
# Add the following content to arch.conf | |
# <UUID> is the the one of the raw encrypted device (/dev/nvme0n1p2). It can be found with the 'blkid' command | |
title Arch Linux | |
linux /vmlinuz-linux | |
initrd /initramfs-linux.img | |
options cryptdevice=UUID=<UUID>:vg0 root=/dev/mapper/vg0-root resume=/dev/mapper/vg0-swap rw intel_pstate=no_hwp | |
# Exit new system and go into the cd shell | |
exit | |
# Unmount all partitions | |
umount -R /mnt | |
swapoff -a | |
# Reboot into the new system, don't forget to remove the cd/usb | |
reboot |
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