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+---
+title: "Installing ArchLinux with Full Disk Encryption (LUKS)"
+date: 2018-12-19T22:35:11-05:00
+categories: ["Tutorial"]
+tags: ["linux"]
+---
+This is a guide written on how to install Arch Linux using LUKS for disk encryption, and Systemd-boot as the bootloader.
+<!--more-->
+It is assumed that the reader has basic linux knowledge and understands that examples are given via output commands.
+The reader may always consult manpages, the [Arch Wiki](https://wiki.archlinux.org/), or other documentation to build a better understanding of the tools and methods used.
+
+---
+
+# Partitioning
+1. Create a partition scheme using partitioner of choice (e.g. `gdisk`, `fdisk`, `cgdisk`).
+   - First partition should be EFI/boot partition at around 256MB+ (type: `ef00`)
+   - Second partition should be Linux LVM partition using rest of disk space (type: `8e00`)
+1. Make the the EFI/boot partition FAT32 via `mkfs.fat -F32`
+
+# Encryption
+1. Format the Linux LVM partition:
+   ```
+   # cryptsetup luksFormat /dev/sdaN
+   Enter passphrase:
+   ```
+   **Note:** _Remember your passphrase! You will need this every time you boot your computer_
+1. Create a mapping for your Linux LVM (LUKS):
+   ```
+   # cryptsetup open --type luks /dev/sdaN <map_name>
+   ```
+   _Use whatever name you want. Ex. `lvm`, `volume`, etc._
+1. Create the physical volume, volume group, and logical volumes for `<map_name>` specified in the previous step:
+   ```
+   # pvcreate /dev/mapper/<map_name>
+   # vgcreate <volume_name> /dev/mapper/<map_name>
+   ```
+   _Use whatever volume name you want. Ex. `volume`, `main`, `linux`, etc._
+   ```
+   # lvcreate -L2G <volume_name> -n swap
+   ```
+   _Select size for swap, if desired. Here we use `2G` for 2Gb._
+   ```
+   # lvcreate -L16G <volume_name> -n root
+   # lvcreate -l 100%FREE <volume_name> -n home
+   ```
+1. Specify and write the desired filesystems:
+   ```
+   # mkfs.ext4 /dev/mapper/<volume_name>-root
+   # mkfs.ext4 /dev/mapper/<volume_name>-home
+   # mkswap /dev/mapper/<volume_name>-swap
+   ```
+
+# Install Linux
+1. Mount the boot partition and logical volumes for installation:
+   ```
+   # mount /dev/mapper/<volume_name>-root /mnt
+   # mkdir /mnt/home
+   # mkdir /mnt/boot
+   # mount /dev/mapper/<volume_name>-home /mnt/home
+   # mount /dev/sdaN /mnt/boot
+   # swapon /dev/mapper/<volume_name>-swap
+   ```
+
+1. Install the base system (_Assuming you have internet connectivity. Use `wifi-menu`, or other, to connect to the internet at this point._):
+   ```
+   # pacstrap /mnt base base-devel
+   ```
+
+# Set-up Linux Installation
+1. Generate the `fstab`:
+   ```
+   # genfstab -p /mnt >> /mnt/etc/fstab
+   ```
+
+1. Move into the installation:
+   ```
+   # arch-chroot /mnt
+   ```
+
+1. Configure `initramfs`:
+   1. Edit `HOOKS` in `/etc/mkinitcpio.conf` using text editor of your choice (e.g. `vi`, `nano`, etc.). Move the `keyboard` hook before `filesystems`, and add `encrypt` and `lvm2` hooks **before** `filesystems`:
+      ```
+      # egrep '^HOOKS' /etc/mkinitcpio.conf
+      HOOKS=(base udev autodetect modconf block keyboard encrypt lvm2 filesystems fsck)
+      ```
+      _Read the comment documentation on `HOOKS` in the document to find out more._
+
+   1. Generate `initramfs`:
+      ```
+      # mkinitcpio -p linux
+      ```
+
+1. Install a bootloader (e.g. `systemd-boot`, `grub`, `syslinux`, etc.):
+   1. I will be using `systemd-boot`
+      ```
+      # bootctl --path=/boot/ install
+      ```
+
+   1. Edit the loader configuration using a text editor of your choice:
+      ```
+      # cat /boot/loader/loader.conf
+      default arch
+      timeout 3
+      editor 0
+      ```
+
+   1. Create the loader entry for the default `arch` entry specified above (_You can edit this name if desired._). Use `blkid /dev/sdaN` to find the UUID of your crypt device, and recall the volume name you gave your device above (_`main` in example below_):
+      ```
+      # cat /boot/loader/entries/arch.conf
+      title Arch Linux
+      linux /vmlinuz-linux.img
+      initrd /initramfs-linux.img
+      options cryptdevice=UUID=9f1fc119-b1dc-49d8-9a5a-686ad9e2fd2e:volume root=/dev/mapper/main-root quiet rw
+      ```
+
+1. Create a root password using `passwd`.
+1. Set a hostname:
+   ```
+   # echo "<your_hostname>" > /etc/hostname
+   ```
+
+1. Set up the time:
+   ```
+   # ln -fs /usr/share/zoneinfo/<continent>/<city/place> /etc/localtime
+   # hwclock --systohc --utc
+   ```
+
+1. Set the locale to `en_US`:
+   ```
+   # sed -i 's/^\#en_US/en_US/' /etc/locale.gen
+   # locale-gen
+   # locale > /etc/locale.conf
+   ```
+
+1. Done!
+   ```
+   # exit
+   # unmount -R /mnt
+   # reboot
+   ```
+