This guide doesn't (currently) address installation on Apple devices. It is NOT ENCRYPTED 2; sda2 marks the start of the logical partitions; sda5 is our encrypted LUKS partition; sda5_crypt is the virtual crypt partition after unlocking (which uses LVM) ubuntu--vg-root is our root partition; ubuntu--vg-swap_1 is the swap partition; Remote unlocking overview. Desktop installer ISO image from http://releases.ubuntu.com/ copied to installation media (usually a USB Flash device but may be a DVD or the ISO file attached to a virtual machine hypervisor). : Either way your fstab should look like this: We are done with swap and can unmount the top-level root filesystem: The device holding the kernel (and the initramfs image) is unlocked by GRUB, but the root device needs to be unlocked again at initramfs stage, regardless whether it’s the same device or not, so you’ll get a second prompt for your passphrase. Next, we are going to create a key file, which we will be add to our keys for the LUKS-encryption … Unfortunately, Canonical (who control the building of the packaged signed GRUB UEFI boot-loader) did not include the encryption modules in their signed GRUB EFI images until the release of 19.04 Disco. While most disk encryption software implements different, incompatible, and undocumented formats, LUKS … When installing a fresh copy of Ubuntu one of the options is to install with a LUKS-encrypted … The reason is the Ubuntu Installer would only create partitions 1 and 5. The server needed to be accessible 24/7 with little risk of down-time. Further support may be available from Freenode IRC channel #ubuntu. The upcoming Ubuntu Core 20 has full disk encryption with TPM support. Normally you would choose one or the other. It can encrypt whole disks, removable media, partitions, software … Wowchemy — There are many ways to encrypt the swap partition, a good reference is dm-crypt/Swap encryption. After this, optionally, make changes to the configuration files: For example, as we don’t have a dedicated /boot partition, we can set snapshotBoot=false in the timeshift-autosnap-apt-conf file to not rsync the /boot directory to /boot.backup. Note: this package is not available in 18.04 Bionic because the files are included in the main cryptsetup package. This is due to the fact that Btrfs Async Discard Support Looks To Be Ready For Linux 5.6 is quite new, but 20.04 still runs kernel 5.4, it is better to enable the fstrim.timer systemd service: Open a terminal and install some dependencies: Install Timeshift and configure it directly via the GUI: Timeshift will now check every hour if snapshots (“hourly”, “daily”, “weekly”, “monthly”, “boot”) need to be created or deleted. If the boot hasn't been interrupted to choose a language the Welcome dialog with start-up options will be displayed. If you do need to manipulate the existing partitions use the Show Applications menu to search for GPartEd which is the graphical user interface partitioning tool (see the GPartEd manual for how to use it). Ubuntu’s Disk Utility uses LUKS (Linux Unified Key Setup) encryption, which may not be compatible with other operating systems. I have found that there is some general agreement to use the following mount options: We need to change two configuration files: So let’s use an editor to change the following: Now let’s run the installation process, but without installing the bootloader, as we want to put /boot on an encrypted partition which is actually not allowed by Ubiquity. In the “Installation type” options choose “Something Else” and the manual partitioner will start: Note that if you don’t declare a swap partition, the installer will create a swapfile, but for btrfs this needs to be in its own subvolume (otherwise we cannot take snapshots of @). Now minimise the Terminal window and start the Installer: Choose the installation language and keyboard and then the software installation choices: In the Installation Type options choose Something Else: Select the root file-system device for formatting (/dev/mapper/ubuntu--vg-root), press the Change button, choose Use As Ext4... and Mount point /: Select the swap device (/dev/mapper/ubuntu--vg-swap_1), press the Change button, choose Use as swap area: Select the Boot file-system device for formatting (/dev/mapper/LUKS_BOOT), press the Change button. As I have no use for hibernation or suspend-to-disk, I will simply use a random password to decrypt the swap partition using the crypttab: We also need to adapt the fstab accordingly: The sed command simply replaced the UUID of your swap partition with the encrypted device called /dev/mapper/cryptswap. For the sake of this guide, I will show how to set up both an encrypted swap partition as well as a swapfile which resides in its own btrfs subvolume. LUKS also supports secure management of multiple user passwords. To provide for this we will only allocate 80% of the free space in the VG to the LV initially. Here's is a tutorial about how to decrypt LUKS … So, let’s make the necessary change with a text editor, e.g. In most cases they are called sda for normal SSD and HDD, whereas for NVME storage the naming is nvme0. There’s also an option to encrypt your Ubuntu installation, but only if you erase everything and install ubuntu. For per-directory encryption… Frequently asked questions about LUKS encryption This FAQ provides you with answers to common questions about LUKS encryption. In this article, I shall walk you through the steps to create an encrypted data partition using the Linux Unified Key Setup (LUKS) disk encryption specification on your device running Ubuntu 18.04 to improve the security of your sensitive data. Either way, we need to prepare the luks1 partition or else GRUB will not be able to unlock the encrypted device. Choose the one you like more. As I have a German Keyboard, I first go to Settings -- Region & Language and set my keyboard layout. Last modified on 2019-01-13. This setup works similarly well on other distributions, for which I also have installation guides with optional RAID1. Note: ... Once you answer the prompts, the process is complete. I know the command to add an additional keyslot to a LUKS volume is: If you added a key-file you need to type your password only once. For grub-btrfs, I change GRUB_BTRFS_SUBMENUNAME to “MY BTRFS SNAPSHOTS”. The Linux Unified Key Setup (LUKS) is the standard for Linux hard disk encryption. “Select Snapshot Levels” (type and number of snapshots that will be automatically created and managed/deleted by Timeshift), my recommendations: Activate “Stop cron emails for scheduled tasks”, “Create” a manual first snapshot & exit Timeshift. If you have other partitions, check their types and use; particularly,deactivate other EFI partitions. The Ubuntu installation is LUKS-encrypted via the installer and Windows is Bitlocker-encrypted … Configure LUKS partition. The Linux Unified Key Setup (LUKS) is a disk encryption specification created by Clemens Fruhwirth in 2004 and was originally intended for Linux.. PCR 12 LUKS-header; PCR 13 Parts of GRUB2 that are loaded from disk like GRUB2-modules // TODO: fonts, themes, local; Add key file to LUKS. I'll demonstrate on Ubuntu Server 18.04. Note that this written guide is an updated version of the video and contains much more information. Full disk encryption (including boot) on Ubuntu. Here’s the process in few steps: Man-pages for pvcreate vgcreate lvcreate. Unfortunately there is no consistency between different PC manufacturers on how motherboard firmware boot-managers should indicate boot-mode so we, as users, have to figure it out from what clues we can see when the PC's boot menu is displayed and lists boot devices. Manjaro Architect). the free, Doing this will allow you to copy and paste these instructions directly into your terminal (note: do not copy and paste the "#" prefix). BIOS is also known as Legacy or CSM (Compatibility Support Module) when part of UEFI. There is a quick way to confirm the installer has started in UEFI mode - it will be using GRUB, so see the following section First Boot Screen > GRUB (UEFI mode) for what it will look like. How to Encrypt a Block Storage volume with LUKS on Ubuntu 20.04. On Ubuntu use this command to install; # sudo apt-get install cryptsetup. The command will not return to the shell prompt until the target directory has been created by the installer. If the target system is BIOS-only you can disregard the rest of this section. You should get a GRUB pass-phrase prompt: Full_Disk_Encryption_Howto_2019 (last edited 2020-11-07 14:19:16 by tj), The material on this wiki is available under a free license, see Copyright / License for detailsYou can contribute to this wiki, see Once you have physically connected the disk, find the unmounted disk in the system using lsblk: We'll set an environment variable we can re-use in all future commands. Let's assume we're using a USB Flash device. Note that most Linux distributions also default to version 1 if you do a full disk encryption (e.g. The Linux Unified Key Setup or LUKS is a well documented disk encryption specification. GRUB is able to decrypt luks version 1 at boot time, but Ubiquity does not allow this by default. After all for luks the volume key can already be found by user space in the Device Mapper table, so one could argue that including key files to the initramfs image – created with restrictive permissions – doesn’t change the threat model for luks devices. On the same drive. Apple Macintosh/iMac devices have their own EFI (Extensible Firmware Interface) which is almost, but not quite, the same as UEFI but do not have a BIOS equivalent. LUKS devices need to create a mapper that can then be referenced in the fstab. It is NOT ENCRYPTED 2; sda2 marks the start of the logical partitions; sda5 is our encrypted LUKS partition; sda5_crypt is the virtual crypt partition after unlocking (which uses LVM) ubuntu--vg-root is our root partition; ubuntu … So we need to run the installer with: Choose the installation language, keyboard layout, Normal or Minimal installation, check the boxes of the Other options according to your needs. IMPORTANT this step must be done otherwise the Installer's partitioner will disable the ability to write a file-system to this device without it having a partition table (Man-page for mkfs.ext4): Format the EFI-SP as FAT16 (Man-page for mkfs.vfat): We'll now create the operating system LVM Volume Group (VG) and a Logical Volume (LV) for the root file-system. Encrypting a drive with LUKS – Ubuntu Linux. If we want to guarantee UEFI mode and avoid BIOS/CSM/Legacy mode then by entering firmware Setup at power-on we should be able to find an option to disable CSM/Legacy mode. This entry is 1 of 2 in the The Linux Unified Key Setup (LUKS) is a disk encryption Tutorial series. John the Ripper only supports CPU cracking with LUKS1 and specific combination of encryption/hash mode. Instead of these steps you can just press Ctrl+Alt+T hot-key combination. Keep reading the rest of the series: Linux Hard Disk Encryption With LUKS; Backup and restore LUKS header on Linux There are plenty of reasons why people would need to encrypt a partition. LUKS EXTENSION LUKS, the Linux Unified Key Setup, is a standard for disk encryption. First find out the name of your drive. choose Use as Ext4... and Mount point /boot: Select the boot-loader device (/dev/sda in my example). Recheck everything, press the Install Now button to write the changes to the disk and hit the Continue button. First we need to make it capable to unlock luks1-type partitions by setting GRUB_ENABLE_CRYPTODISK=y in /etc/default/grub, then install the bootloader to the device /dev/vda and lastly update GRUB. Reboot the system, not forgetting to remove the installation media (otherwise it'll boot again!). At the time of writing, there is only one way to choose to install Ubuntu with Full Disk Encryption (FDE) with the Ubuntu install .iso GUI, and that's by choosing to create an encrypted LVM. Historically Desktop / Server, only configured LUKS full disk encryption with an LVM layer. If you ever need to rollback your system, checkout Recovery and system rollback with Timeshift. What is encrypted are the operating system partition and the boot-loader second-stage file-system which includes the Linux kernel and initial RAM disk. With btrfs I do not need any other partitions for e.g. Just in case, I also reinstall the generic kernel (“linux-generic” and “linux-headers-generic”) and also install the Hardware Enablement kernel (“linux-generic-hwe-20.04” “linux-headers-generic-hwe-20.04”): Lastly, double-check that the initramfs image has restrictive permissions and includes the keyfile: Note that cryptsetup-initramfs may rename key files inside the initramfs. After doing that we can be sure the installer will boot in UEFI mode. This guide walks you through setting up Ubuntu 20.04 LTS on BTRFS using GPT, UEFI, and LUKS Disk Encryption with remote SSH unlock.. Table of Contents [optional] Setup VirtualBox; Install Ubuntu 20.04 on BTRFS with LUKS The default luks (Linux Unified Key Setup) format used by the cryptsetup tool has changed since the release of Ubuntu 18.04 Bionic. LVM has a wonderful facility of being able to increase the size of an LV whilst it is active. standardized header at the start of the device, a key-slot area directly behind the header The whole set is called a 'LUKS container'. On modern versions of Ubuntu Linux the option to do the full-disk encryption using LUKS on LVM is provided from the standard Ubiquity LiveCD-based installer and you no longer have to use … I'm (Tj) being deliberately pedantic in calling this almost Full Disk Encryption since the entire disk is never encrypted. BIOS was installed in IBM PCs and compatibles from the 1980s. (in this example target is a 9GiB virtual machine disk image file). This article outlines how to LUKS encrypt a secondary drive on Ubuntu 20.04 Focal Fossa using cryptsetup on the command line.. Find the Unmounted Disk. Then, open a terminal (CTRL+ALT+T) and run the following command: to detect whether we are in UEFI mode. Let’s restrict the pattern of keyfiles and avoid leaking key material for the initramfs hook: These commands will harden the security options in the intiramfs configuration file and hook. Alternatively, or additionally, you can set up a swapfile, or skip to the next step. This is especially true when using LUKS, since its functionality is built directly into the kernel. On Ubuntu (Gnome) press the Show Applications button at lower-left corner, In the subsequent text search field type "Term" until just the Terminal icon is shown. The presence of the efivarfs file-system means the system booted in UEFI mode: The options displayed will look different depending on which boot-loader is used. First check for any existing partitions on the device and if some are found consider if you wish to keep them or not. This tutorial is made with Ubuntu 20.04 Focal Fossa copied to an installation media (usually a USB Flash device but may be a DVD or the ISO file attached to a virtual machine hypervisor). As such it is a nice way to get at least some encryption if during installation you did not choose full disk encryption. For these commands you'll need elevated privileges so switch to root user (the $ prefix indicates a regular user and # indicates root user): Here the installation target device is sda but yours may vary so examine the SIZE to ensure you choose the correct target. For me the installation target device is called vda: You can also open gparted or have a look into the /dev folder to make sure what your hard drive is called. In summary, the LUKS container for /boot/ must currently use LUKS version 1 whereas the container for the operating system's root file-system can use the default LUKS version 2. It is … Partition 4 is not created. Conveniently, the real root (subvolid 5) of your BTRFS partition is also mounted here, so it is easy to view, create, delete and move around snapshots manually. If you ever need to rollback your system, checkout Recovery and system rollback with Timeshift. Now map the encrypted partition to a device called cryptdata, which will be our root filesystem: We need to pre-format cryptdata because, in my experience, the Ubiquity installer messes something up and complains about devices with the same name being mounted twice. cryptdata is our root partition which we’ll use for the root filesystem. device … See bug #1565950. The Linux Unified Key Setup (LUKS) is a disk encryption specification created by Clemens Fruhwirth in 2004 and was originally intended for Linux. I also needed the operating system encrypted … If you have not enabled auto mount using secret key then you can use LUKS passphrase to manually mount the encrypted … I am also creating a 4GiB LV device for swap which, as well as being used to provide additional memory pages when free RAM space is low, is used to store a hibernation image of memory so the system can be completely powered off and can resume all applications where they left off. This is safe because these files are themselves stored in the encrypted /boot/ which is unlocked by the GRUB boot-loader (which asks you to type the pass-phrase) which then loads the kernel and initrd.img into RAM before handing execution over to the kernel. Select “BTRFS” as the “Snapshot Type”; continue with “Next”, Choose your BTRFS system partition as “Snapshot Location”; continue with “Next”. This may already be installed. Goal: Install Ubuntu Linux 18.04 LTS on a single encrypted partition using LVM on LUKS. There’s no automatic way to install Ubuntu alongside Windows 10 with encryption. Ubuntu (and flavours like Kubuntu, Lubuntu, Xubuntu, etc.) We'll be creating a GPT (GUID Partition Table) so it is compatible with both UEFI and BIOS mode installations. Whether they're rooted it privacy, security, or confidentiality, setting up a basic encrypted partition on a Linux system is fairly easy. Ubuntu + Windows 10 dualboot with LUKS encryption. Devices that go out and about such as laptops and backup external drives should have their contents encrypted … 18.04 used version 1 (“luks1”) but more recent Ubuntu releases default to version 2 (“luks2”) and check that /boot is not located inside an encrypted partition. It is focused on modifying the Ubuntu Desktop installer process in the minimum possible way to allow it to install with an encrypted /boot/ and root file-system. A small bios_boot (2MB) partition for BIOS-mode GRUB's core image, an 128MB EFI System Partition, a 768MB /boot/ and a final partition for the remaining space for the operating system. Instead, consider if you need to free up disk space by shrinking or deleting individual existing partitions. If your installation is successful choose the Continue Testing option. Illustrations (screen-captures) are taken from the Ubuntu 19.04 'Disco' Desktop Installer. Note that the UUID is from the luks partition /dev/vda3, not from the device mapper /dev/mapper/cryptdata! Note that the SSD is not detected for me here, because I am running this in a Virtual Machine, but I will still pretend that I am on a SSD. Network-bound disk encryption allows unlocking LUKS devices (e.g. I am using this setup for mounting my home directory (/home/seb) from a LUKS encrypted image on Ubuntu 18.04. pam_mount will also take care of unmounting the image after I log out. Step 1: Boot the install, check UEFI mode and open an interactive root shell, Create luks1 partition and btrfs root filesystem, Step 3 (optional): Optimize mount options for SSD or NVME drives, Step 4: Install Ubuntu using the Ubiquity installer without the bootloader, Create a chroot environment and enter your system, Add a key-file to type luks passphrase only once (optional, but recommended), Step 6: Reboot, some checks, and update system, Step 7: Install Timeshift, timeshift-autosnap-apt and grub-btrfs, Recovery and system rollback with Timeshift, Btrfs Async Discard Support Looks To Be Ready For Linux 5.6, Things to do after installing Pop!_OS 20.04 (Apps, Settings, and Tweaks), Ubuntu 20.04 with btrfs-luks-RAID1 full disk encryption including /boot and auto-apt snapshots with Timeshift, a btrfs-inside-luks partition for the root filesystem (including, either an encrypted swap partition or a swapfile (I will show both), an unencrypted EFI partition for the GRUB bootloader, automatic system snapshots and easy rollback similar to, a 512 MiB FAT32 EFI partition for the GRUB bootloader, a luks1 encrypted partition which will be our root btrfs filesystem. Ubuntu 18.04 LTS and newer Ubuntu versions no longer include an option in the installer to encrypt the home directory.This option was removed from the Ubuntu installer because it uses eCryptfs, which is considered "buggy, under-maintained", and the recommended alternative is a full disk encryption using LUKS. Installing Cryptsetup Debian/Ubuntu uses hybrid bootable images that have two alternate boot-loaders: The ISO images can boot in several possible combinations of mode and partitioning: PCs have two boot modes: BIOS (Basic Input Output System) and UEFI (Unified Extensible Firmware Interface). Other flavours have their own installers and themes and may not look identical. Instead a Tang server is queried for a … In that configuration ext4 filesystem is created directly on the LUKS … At that point only the luks header will remain as clear data at the beginning of the disk and we will override it with random data from /dev/urandom. open source website builder that empowers creators. forms: As soon as you have completed those forms switch to the Terminal to configure GRUB. When you run the Ubuntu installer, there’s an option to dual-boot Ubuntu with an existing Windows installation. So, let’s spin up a virtual machine with 4 cores, 8 GB RAM, and a 64GB disk using e.g. Ubuntu 18.04 and above offers to encrypt your hard disk in automated fashion during its installation using dm-crypt and LUKS [1]. The solution is to use LVM partitioning: we will encrypt the whole disk with LUKS, then we will use the disk as phisical volume and make it part of a volume group which will contain as much … There is no problem at all with such a setup. This tutorial will set up a LUKS encrypted Ubuntu server on the cloud. Let’s update the system and reboot one more time: Optionally, if you installed on a SSD and NVME, enable fstrim.timer as we did not add discard to the crypttab. Now we'll create the partitions. If you wish to keep them DO NOT USE sgdisk --zap-all command detailed next. Once Linux has started it is possible to check. Note that in this tutorial I installed both a swapfile and a swap partition. ... Today I will show you how to encrypt an entire drive with LUKS so you can take that drive anywhere and not worry about it getting lost or stolen, I will not go into encrypting your system disk but rather an external hard disk, second hard disk, flash drive etc. In this example I'm installing to /dev/sda: On systems with NVME storage devices the naming scheme is /dev/nvme${CONTROLLER}n${NAMESPACE}p${PARTITION} so if there is only one device it is likely it would require: Finally we'll set an environment variable for the encrypted device-mapper naming that omits the leading path "/dev/" part: And we have to cope with NVME devices needing a 'p' for partition suffix: We'll now create a disk label and add four partitions. I read a question posted here. Note that if you want to use luks version 2 you should create an encrypted /boot partition using version 1, whereas the root filesystem can then be formatted using version 2. Once the Live Desktop environment has started we need to use a Terminal shell command-line to issue a series of commands to prepare the target device before executing the installer itself. Long story short, let’s create a key-file, secure it, and add it to our luks volume: Note that “Key Slot 0” contains our passphrase, whereas “Key Slot 1” contains the key-file. from GRUB: where you enter the luks passphrase to unlock GRUB, which then either asks you again for your passphrase or uses the key-file to unlock /dev/vda3 and map it to /dev/mapper/cryptdata. Syntax: --new=:: where start and end can be relative values and when zero (0) adopt the lowest or highest possible value respectively. Set up a LUKS encrypted Ubuntu server on the cloud. It is also a useful overview on the manual steps required for storage-at-rest encryption. the Manjaro architect installer does as well. Reboot your system (with your Yubikey inserted) and type your LUKS encryption … Install cryptsetup. You can get all UUID using blkid. Whether they're rooted it privacy, security, or confidentiality, setting up a basic encrypted partition on a Linux system is fairly easy. For example: FINISHED! Windows 10), the system motherboard's firmware boot-manager has to be told to start the Ubuntu installer in UEFI mode. ... Today I will show you how to encrypt an entire drive with LUKS so you can take that drive anywhere and not worry about it getting lost or stolen, … As much as is possible these manual steps will keep to the same installation layout and naming as the installer uses. LUKS HDD Encryption crack. It requires 36 commands be performed in a terminal, all of which are shown in this guide and most can be copy and pasted. Even before starting the installer it is critical to select the correct boot mode. I chose Ubuntu due to regular updates & strong peer support. I strongly advise to try the following installation steps in a virtual machine first before doing anything like that on real hardware! Do not close this terminal window during the whole installation process until we are finished with everything. 18.04 used version 1 (“luks1”) but more recent Ubuntu releases default to version 2 (“luks2”) and check that /boot is not located inside an encrypted … Almost Full Disk Encryption (FDE) Other versions of Ubuntu or distributions that use the Ubiquity installer (like Linux Mint) also work, see my other installation guides. Once the Live Desktop environment has started we need to use a Terminal shell command-line to issue a series of commands to pre-prepare the target device before executing the Installer itself. LUKS, the Linux Unified Key Setup, is a standard for disk encryption. You can follow any responses to this … Tags: Disk Storage, encryption, luks, Ubuntu This entry was posted on Monday, May 27th, 2019 at 11:04 pm and is filed under Disk Storage , Laptop , Linux . Now it is time to finalize the setup and install the GRUB bootloader. In most cases that will have been done before this command is executed so it should instantly return: This has to be done before the installer reaches the Install Bootloader stage at the end of the installation process. Swapfiles used to be a tricky business on btrfs, as it messed up snapshots and compression, but recent kernels are able to handle swapfile correctly if one puts them in a dedicated subvolume, in our case this will be called @swap. The boot menu may list that device twice (once for UEFI mode, and again for BIOS/CSM/Legacy mode). In my last article I had shared the steps to encrypt a partition using LUKS.Now in this article I will continue with LUKS disk encryption and will share the steps to auto mount LUKS device with and without encrypt key during boot up of the Linux node. # yum install cryptsetup-luks. We'll be using the sgdisk tool. However, this is much better than the Ubuntu installer Encrypt Disk option which only supports encrypting the operating system partition but leaves the boot-loader second stage file-system unencrypted and therefore vulnerable to tampering of the GRUB configuration, Linux kernel or more likely, the initial RAM file-system (initrd.img). ... We’ll be using the standard LUKS (Linux Unified Key Setup) encryption specification in this article. Since a couple of months, I am exclusively using btrfs as my filesystem on all my systems, see: Why I (still) like btrfs. After the Ubuntu installation is finished we will be adding key-files to both of these devices so that you'll only have to type the pass-phrase once for GRUB and thereafter the operating system will use embedded key-files to unlock without user intervention. Note that if you mistyped the password for GRUB, you must restart the computer and retry. The size of the swap space to support hibernation should be equal to the amount of RAM the PC has now or is is expected to have in the future. You might find maximising the Terminal window is helpful for working with the command-line. Since the initramfs image now resides on an encrypted device, this still provides protection for data at rest. To avoid extra passphrase prompts at initramfs stage, a workaround is to unlock via key files stored into the initramfs image. I run an encrypted instance of Windows 10 and Ubuntu 18.04 on my work laptop. Note that the EFI partition is still rsynced into your snapshot to /boot.backup/efi. Encrypting a drive with LUKS – Ubuntu Linux. 18.04 used version 1 ("luks1") but more recent Ubuntu releases default to version 2 ("luks2"). UEFI mode has become prevalent since Microsoft introduced it in Windows 7 and later began requiring it on new PCs to meet the Windows Logo License Agreement requirements. In order to support UEFI Secure Boot, or to install alongside another operating system that uses UEFI boot mode (e.g. Unfortunately, the Ubiquity installer does not set good mount options for btrfs on SSD or NVME drives, so you should change this for optimized performance and durability. "U" vs "B"). GRUB only supports opening version 1 so we have to explicitly set luks1 in the commands we use or else GRUB will not be able to install to, or unlock, the encrypted device. Choose Try Ubuntu. I can confirm that the installation works equally well on my Dell XPS 13 9360, my Dell Precision 7520 and on my KVM server. LUKS provides a standard on-disk-format for hard disk encryption, which facilitates compatibility among Linux distributions and provides secure management of multiple user passwords.