Questions tagged [encryption]

Questions about encryption such as home folder encryption, partition encryption and file encryption.

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Dual booting Ubuntu with LVM and FDE & Windows 10 on separate hard drives

So I am planning on dual booting Ubuntu and Windows 10 on my desktop. Ubuntu as my main OS for everyday tasks, learning and dev stuff, and Windows just for gaming. I want to install Ubuntu on my NVME ...
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Why Déjà Dup is failing with gpg: decryption failed: Bad session key in Ubuntu 20?

When backup start, I have the error ===== Begin GnuPG log ===== gpg: AES256 encrypted data gpg: encrypted with 1 passphrase gpg: decryption failed: Bad session key ===== End GnuPG log ===== Though it ...
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Encrypt each user's home folder individually with ZFS

Scenario is that I have a pile of computers (with Ubuntu 20.04), each of which can have multiple users. Each user's account has to be encrypted individually. I took the following articles as ...
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thumbnails of videos in LUKS partition not getting generated

i encrypted a partitions using LUKS but now video thumbnails are not generating (in that particular partition) although image thumbnails are there, i tried with the ffmpegthumbnailer command but not ...
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Data encryption for a standard SD card [closed]

I want to encrypt my SD card such that data can be added to it but it shouldn't be accessed without a password. I'm looking at it from a camera trap point of view. Where I need the camera data to be ...
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How do I reroute all my traffic (without using VPN)?

I understand that this could be accomplished with VPN, but the thing is I wish to seek options other than VPN. What I want to do is to bypass China's GFW, VPN needs a connection establishment phase ...
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1answer
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cryptsetup ubuntu 20.04 no longer asks for my password

I have my hard drive encrypted with ubuntu 20.04, using the installer, When I updated to kernel 5.4.0-47-generic , instead of asking for my password it sits at cryptsetup: waiting for encrypted source ...
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How to prevent automatic decryption using Nautilus/Nemo

I have installed seahorse-nautilus, which allows me to encrypt files from within Nautilus (and, I note, Nemo). But when I click on the encrypted file, it is automatically decrypted -- I am not asked ...
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EXTERNAL SSD with LUKS 256 crashed again, the whole SSD is completely UNRECOGNIZED everything gone partition missing

I am having problems with Lubuntu Version 18.04.4 LTS specifically, and not 18.04 LTS as I thought at first. Although I have some issues with Bluetooth and other things, the main issue is that my ...
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Decrypting and mounting Windows Bitlocker drives

I have a system that is dual booted with Windows 10 and Ubuntu 20.04. I have some partitions that Win10 automatically has bitlocker enabled, therefore i cannot read or write from Ubuntu. I followed ...
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Command `refreshgrub` ? (in the doc for full disk encryption)

I am trying to follow the "Troubleshooting" page for full disk encryption to restore a grub boot overwritten by window but the last and critical step refreshgrub in the following community ...
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Implementing SSL using lets encrypt , Nginx and Ubuntu 18.04?

I want to implement SSL on my server which is using nginx. I am following this link to implement it : https://certbot.eff.org/ But after executing sudo snap install --classic certbot , I get following ...
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Size of swap storage changed since installation

during the installation of my full encrypted Ubuntu a configured a swap space of 20G (because of using hibernate). Hibernation works two weeks ago. Now the swap space has size of 1G, but the logical ...
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For mounting APFS drives (FileVault encrypted or not), which resource should I be using?

With the research I've done, I've concluded with 3 possible utilities that I could use for mounting APFS drives. https://github.com/libyal/libfsapfs - This is my first choice, since it's already in ...
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How to set full disc encryption on ubuntu server after OS installation is complete? [duplicate]

I have a machine running ubuntu server with nextcloud. At first I installed ubuntu server just for learning purposes, but the server worked just perfectly. Now I want to encrypt my full disc and the ...
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20.04 AutoInstaller - Luks Encryption

Question in regards to the user-data file for autoinstall in ubuntu 20.04. What is the best method to luks encrypt during the autoinstall? I did a manual install and then copied the autoinstall-user-...
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“Suspend to swap” encryption

I have enabled "suspend to swap". The swap partition is protected because I have enabled full disk encryption (standard luks and lvm layout). However the swap partition is not protected ...
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591 views

Partitioining a USB flash drive and encrypting one of the partitions

I am using Ubuntu 16.04 and have a large USB flash drive (256 GB) that I want to use to store my data as an encrypted backup. My data is less than 100 GB, so I my idea was to partition the USB drive (...
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Backup of a whole encrypted Kubuntu 20.04.1 hard disk (LVMS)

I use Kubuntu 20.04.1 on a fully encrypted hard 500 GB disk (LVMS). I wanted to resize the partitions to make backup. Unfortunately even the latest version of partition magic is not able to resize it. ...
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Grub does not detect encrypted Ubuntu on second disk

I have Ubuntu 20.04 on my first nvme drive, which lays inside an encrypted partition. Now, I've installed Kubuntu 20.04 on my second nvme drive, using the live installer and selecting encryption for ...
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Delay when unlocking encrypted Kubuntu 20.04.1

SCENARIO: I installed Kubuntu 20.04.1 with LVM and fully encryted hard disk on my Thinkpad T495. During the boot I enter the hard disk password. I have then an auto-login set and it all works. I use ...
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kernel-img.conf is not working

I have root encrypted system, So I need to copy my kernel and initramfs image to ESP (mounted at /efi), I read (in manpage and kernel-img.conf supplied by kernel-common) that kernel-img.conf can be ...
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Drive hasnot been encrypted when installing 20.04

I did a clean install of 20.04.01 on the laptop which previously had 18.04 on board. I chosen LVM and encryption + overwrite empty disk space. Finished with a passwd. After, I set a complely new ...
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37 views

Unable to prevent encrypted boot partition from being automatically mounted

I have Ubuntu 20.04 installed with /root, swap, and /home as logical volumes inside a LUKS2 container and a separate /boot inside a LUKS1 container. I would like the /boot partition to not be ...
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Easy (non full) disc encryption

There is a long and detailed page about the full disk encryption: https://help.ubuntu.com/community/Full_Disk_Encryption_Howto_2019 But I heard that there is an easy (non-full) disk encryption ...
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LUKS using crypttab wont boot if disk is missing

I have setup disks in /etc/crypttab to be decrypted on boot. But, if one is missing I get a bunch of Failed to connect to lvmetad and I then get dropped into aninitramfs shell. I just want the ...
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75 views

Unattended/headless Ubuntu server with disk encryption - how to set it up?

I'm a long-time Linux user, but I'm not well-versed with the newer developments, esp. wrt Ubuntu and system(d) administration. I have a very old PC that I want to use for a file server, Mercurial repo,...
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How can I increase the size of an encrypted swap partition when the root partition already takes up all free space?

My laptop is getting kinda slow, especially when having Firefox opened with multiple tabs, which is why I'm trying different ways to make it a little snappier. It has Ubuntu 20.04 LTS installed and ...
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99 views

Can not run update-initramfs from live USB during dual boot encrypted install

I'm a Ubuntu beginner trying to do an encrypted dual boot with Windows 10 and Ubuntu 18.04. For the Ubuntu installation, I have followed some guides where the partitions are encrypted using a bootable ...
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30 views

How to save encrypted custom install?

I'm using a Lenovo Carbon X1 Gen 7 with an encrypted Win 10 Pro preinstalled. I used this incredibly helpful tutorial contained in the post to help me install Ubuntu on an encrypted disk alongside an ...
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Secure and sure way to clone an identical LUKS External HDD

I am using Lubuntu 18.04. LUKS such a wonderful SW until you get trapped into a mental pain of never-ending loops. And the worst thing is that I do not know where I made a mistake and why that ...
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How do I setup a second encrypted drive to automount at startup?

Some details about my system: I'm running Ubuntu 20.04 which I installed with the encrypted drive option. Ubuntu is the only OS on this machine. I recently got a second disk, an NVMe SSD which I want ...
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Can Ubuntu 20.04.1 with LUKS and Windows 10 with Bitlocker share the TPM so they unlock automatically on boot?

I know that Bitlocker can store the key in the TPM so it unlocks on boot, and that you can configure LUKS to do that as well. Would it be possible for both OSes to "share" the TPM so I don't ...
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Start samba on boot before entering the passphrase on an encrypted hard drive

I choose to encrypt the entire hard drive on Ubuntu 18.04 installation that I am using as a samba share. The samba service will start on boot. The Ubuntu will auto start after power loss but not ...
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117 views

In Ubuntu 20.04 Desktop what does “Encrypt the new Ubuntu installation for security” actually encrypt? [duplicate]

When installing Ubuntu 20.04 Desktop with the GUI there is a screen where you can choose "Erase disk and Install Ubuntu" with an "Advanced features..." button. If you click that ...
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Stuck after encrypted disk unlock after upgrading to 20.04

I have full disk encryption and today upgraded from 19.10 to 20.04 (installed over the previous version, ran the upgrade from the GUI) and since the update the boot is stuck right after I enter and it ...
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Failure when recovering from hibernation with encrypted drive on Ubuntu 20.04. Swapfile priority?

I used to hibernate on my laptop whose disk is encrypted, under ubuntu 20.04, following the instruction given here and here (except that I didn't manage to make it work before ubuntu 20.04 because of ...
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45 views

How do I recover data from a Logical Volume on Linux after deleting it?

Yesterday I was trying to shrink my Ubuntu partition with LUKS encryption to make place for another distribution, but because it was an LVM partition I was just trying random commands from the ...
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server acces via ssh: Decrypt all hdds at once?

I want to setup an ubuntu server with one harddrive "hdd1" for the installation and several harddrives "hdd2, hdd3, ..." for the actual shared files. The server and the files ...
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94 views

Encryption independent of ubuntu os?

I want to set up a ubuntu server (20.04.1) and encrypt some hard drives for the server. Those hdd are not the drives of os installation. Let's assume that for any reason the installation boot hdd ...
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19 views

Accessing windows shared drive encrypted using SafeGuard LanCrypt from linux

A containerized python application running in Linux machine needs to continuously read files from a windows shared drive which is encrypted using SafeGuard LanCrypt. To let the python have access to ...
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50 views

Files lost by encfs

I would like to ask you for a help. I recently used the software encfs in my ubuntu 18.04 laptop. I created a new stash using the same software in my desktop. I would like to list the steps.... I ...
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Can't use zulucrypt-cli as regular user

I have both Ubuntu 18 (bionic) and 19 (eoan). I installed zulucrypt-cli from the regular repositories: apt-get install zulucrypt-cli When I try to run it as my regular user, I get the error: ERROR: ...
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Resize encrypted LVM partition on Kubuntu

I installed Kubuntu 20.04 on a completely encrypted disk / partition. Now I would like to shrink the encrypted partition to backup it. I tried to do it with a Live USB Stick with GParted 1.1.0 (one of ...
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45 views

GRUB issues - How to get back to windows boot manager

So I am dual-booting Windows and Ubuntu 16.04, and I have the Ubuntu partition encrypted. After updating yesterday my GRUB won't load. I tried using a live USB with boot-repair-disk but it wasn't able ...
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Ubuntu 18.04: How to move to encrypted disk?

I have Ubuntu 18.04 LTS installed to 256Gb SSD. I've got 512Gb SSD and would like to move the system there with full disk encryption via LUKS e.g. (but if there is more easy solution you are welcome ...
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329 views

Ubuntu 20.04 + WIndows 10 Pro + disk encryption

I would like to use dual-boot with Windows 10 + BitLocker next to Ubuntu 20.04 + encryption (what is the full-disk encryption software that comes with Ubuntu 20.04 called?). I don't need (or want) ...
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101 views

I can't login to Ubuntu 20.04 - encrypted /home partition - SOLVED

I had Ubuntu 18 before and I reinstalled Ubunto 20.04 on / partition. I didn't change /home partition during the installation process. I set the same username and. password I had before. When I try to ...
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18.04.4 lts 32-bit intel system cannot unlock encrypted luks root filesystem after upgrade to 5.4.0-42 HWE kernel from 5.3.0-62

18.04.4 lts 32-bit intel system cannot unlock encrypted luks root filesystem after upgrade to 5.4.0-42 HWE kernel from 5.3.0-62. reverting to 5.3.0-62 encryption makes the password work again. Need ...
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Getting files from an internal harddrive that ran ubuntu 18

So my last laptop broke and I tried to restore the files from my internal ssd harddrive. I bought an adapter from the harddrive and plugged it into another computer running ubuntu. It asked me for a ...

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