LUKS/cryptsetup Tutorial for Linux Hard Drive Partition Encryption

This is based on Debian Linux but should apply equally to any *nix distro.

Install LUKS/crypt-setup

apt-get install cryptsetup

Setup your LUKS Partition

Of course change /dev/md2 with whatever partition you intend to use LUKS on.

cryptsetup --verbose --verify-passphrase luksFormat /dev/md2

You'll be asked to verify your decryption password twice

*DO NOT FORGET THIS PASSWORD AS IT IS NOT RECOVERABLE!

Open/Unlock your LUKS Partition

cryptsetup luksOpen /dev/md2 mylukspartition

You'll be asked for your passphrase at this point (the one you entered above, hopefully you haven't forgotten it already!)

You can change "mylukspartition" to whatever you would like to call it, it just controls the name created in /dev/mapper which is the device you will use to mount the encrypted LUKS partition.

You'll find that the above command creates /dev/mapper/mylukspartition

This will create the device for your LUKS partition (remember you will never be able to open it directly and you'll always need the LUKS tools to unlock the partition, so keep this in mind when using a Live/Recovery CD etc...)

CREATE the filesystem on the LUKS device

mkfs.ext3 /dev/mapper/mylukspartition

*Of course you can use any filesystem over top of LUKS but most will probably use ext3

Mount the LUKS Partition

mkdir /mnt/luks

mount /dev/mapper/mylukspartition /mnt/luks

To Umount and Secure Your Data

cryptsetup luksClose /dev/mapper/mylukspartition

Now your data is safe and in order to mount (luksOpen) you will need the passphrase which only you should know.


Tags:

luks, cryptsetup, tutorial, linux, partition, encryptionthis, debian, equally, nix, distro, install, crypt, apt, dev, md, verbose, verify, passphrase, luksformat, ll, decryption, password, recoverable, unlock, luksopen, mylukspartition, haven, quot, controls, mapper, mount, encrypted, creates, etc, filesystem, mkfs, ext, mkdir, mnt, umount, luksclose,

Latest Articles

  • Mikrotik RouterOS CHR/ISO Basic and Quick Setup Howto Guide
  • qemu 4 compilation options
  • CentOS 7 8 PXEBoot Netinstall Not Working Solution "Pane is dead "new value non-exisetnt xfs filesystem is not valid as a default fs type"
  • CentOS 6 EOL yum repo won't work Error: Cannot find a valid baseurl for repo: base Solution
  • CentOS 7 8 How To Disable SELinux
  • Wordpress How To Add Featured Image To Post in Hueman Theme
  • kdenlive full reset how to erase all config files
  • CentOS 7 8 yum error Trying other mirror. To address this issue please refer to the below wiki article
  • Microsoft Teams Linux - Calendar Doesn't Work Missed Meetings!
  • Scanner not working in Linux Ubuntu Fedora Mint Debian over the network? Use sane-airscan!
  • How To Boot, Install and Run Windows 2000 on QEMU-KVM
  • bash cannot execute permission denied
  • Huion and Wacom Tablets How To Install in Linux Mint / Ubuntu and make the stylus work properly
  • ffmpeg how to cut certain parts of video out
  • ffmpeg how to concat and join two video clips
  • mencoder instead of ffmpeg to join or concatenate video files with different audio streams
  • Linux How To Stop Missing Drive from Halting Boot Process in fstab
  • How To Replace Audio Track of Video using ffmpeg
  • qemu-img convert formats vdi vmdk raw qcow2
  • Linux and Windows Dual Boot Crazy Time Issues