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Questions tagged [encryption]

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

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disk encryption in ubuntu 24.04 LTS

When we do manual disk configuration for installation with 24.04 LTS, there is no option to encrypt partion (not disk). There is one option to erase whole disk rather than partition and it also ...
mr.anand's user avatar
0 votes
2 answers
31 views

Does Ubuntu have obstacles to operating after an SSD swap?

My problem is that several keys have stopped working on the keyboard of my Ubuntu machine, likely Ubuntu 22.04. I can't get past full disk de-encryption because my password needs some of the dead ...
H2ONaCl's user avatar
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0 answers
16 views

Installing ubuntu crashes

I flashed a ISO of Ubuntu on a usb stick. I succesfully installed it on the internal ssd of my laptop and also on a seperate usb stick (to test it). Now I'm trying to install Ubuntu on a external ssd ...
Yigit's user avatar
  • 1
0 votes
0 answers
19 views

Booting into recovery mode turns my screen into "Braille" hieroglyphs?

I am running a Ubuntu 22.04 with LUX full disk encryption in a VM. I just finished configuring GRUB to require a password using this answer, and to only require a password when changing settings using ...
SuperDialga's user avatar
0 votes
0 answers
28 views

Booting from encrypted disk image on USB drive

I'd like to make a USB drive on which I can store a number of liveCDs (ubuntu installer for example). So far, I'm able to select an ISO in Grub, and boot from it. What I'd like to do is either: A) ...
hex4def6's user avatar
  • 101
1 vote
0 answers
33 views

Can I use my encrypted WD external HD on Ubuntu?

My WD external HD is encrypted with WD software utilities which is available only for MAC and Windows.. I wonder if any alternative solution exists (Hardware encryption only pls not veracrypt) for ...
hosa's user avatar
  • 31
0 votes
1 answer
88 views

How to encrypt partition using LUKS-2?

I have an empty partition (say /dev/sda1) that I want to encrypt with LUKS-2 and be able to open it with passphrase from commonly used file managers (Dolphin, PCManFM-Qt, etc). I prefer a GUI like KDE ...
CluelessNoob's user avatar
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0 answers
45 views

Zfs encrypted re-install width more swap

I already installed Ubuntu 24.04 with encrypted zfs partition but my swap partition has only 4Gb. So I would to reinstall it with a swap partition of 30Gb. Can I use the actual partitioning and just ...
London Smith's user avatar
0 votes
0 answers
29 views

More swap on zfs architecture

I just installed Ubuntu 24.04 and choosed encrypted zfs architecture to set compression. But I need more swap, by default it installed Ubuntu 24.04 with 4gb. I would need much more, at least 16gb. ...
London Smith's user avatar
0 votes
0 answers
34 views

How to encrypt a directory so that no one can access even when mounted?

In Ubuntu 22.04, I use EncFS to mount a folder (directory) for myself which includes my sensitive data. Every time the system is booted, I mount it manually not to store the password anywhere in the ...
hamidi's user avatar
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0 answers
83 views

Moving full disk with xubuntu 24.04 with .ecryptfs home to new hardware

I have a laptop pc with an 256gb ssd, with an .encryptfs home (only my home) and ubuntu 24.04. I need to move all data and SO files to a new laptop, using clonezilla and external USB for temporary ...
Mariano Acosta's user avatar
0 votes
1 answer
425 views

Can't install Kubuntu 24.04 or Lubuntu 24.04 in encrypted partition

I tried installing these several times, but the same error keeps occurring every time. During installation, I selected manual partitioning, created an ext4 partition, checked the encrypt box, entered ...
CluelessNoob's user avatar
  • 2,303
-1 votes
0 answers
48 views

official resource for passwd or /etc/shadow indicating the encryption algorithm applied with its respective starting pattern by OS version?

For academic purposes I am analyzing the /etc/shadow file at Ubuntu Desktop 22.04. I did do realize for this 22.04 that for any user created through the adduser command - which behind the scenes is ...
Manuel Jordan's user avatar
2 votes
0 answers
295 views

Ubuntu 24.04 LTS Encryption of root with Dualboot does not work

I wanted to upgrade from 22.04 LTS to 24.04 LTS and unfortunately, that broke my Ubuntu system entirely. So I installed Ubuntu from scratch. I used to have a dualboot setup. Windows 11 and Ubuntu. The ...
Lunar Cultist's user avatar
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0 answers
27 views

Why exactly usermod -p command is not recommended?

For only academic purposes I am doing a research about the usermod command working with the -p or --password option: Through man usermod exists: -p, --password PASSWORD The encrypted password, as ...
Manuel Jordan's user avatar
6 votes
2 answers
3k views

Ubuntu 24.04 installer not showing encrypted lvm partitions (luks)

I want to replace my ubuntu 22.04 install which is in an encrypted lvm with new Ubuntu 24.04. I unlocked to crypted partition : sudo cryptsetup luksOpen /dev/nvme0n1p3 nvme0n1p3_crypt password: ok ...
Pasquale Turner's user avatar
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0 answers
54 views

What is the correct approach to unlock a disabled login user?

When is executed the sudo adduser <username> --disabled-login command, is created an user being locked because is disabled login. It can be confirmed with the passwd -S <username> command ...
Manuel Jordan's user avatar
0 votes
2 answers
2k views

Installing ubuntu 24.04 encrypted, along with Windows with BitLocker on the same hard drive

I've attempted to install Ubuntu Beta 24.04 on a new laptop that originally came with Windows 11 Home and disk encryption enabled (BitLocker). During the installation process, the installer raised an ...
Seb's user avatar
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0 answers
21 views

Move LUKSHeader from /dev/sdx1 to /dev/sdx

I've got a machine running ubuntu 23.10 with some LUKS-Encrypted disks attached. Unfortunately I think I made some mistakes when creating the Filesystems, as some of the luksHeaders are in /dev/sdX ...
derelektrischemoench's user avatar
2 votes
0 answers
207 views

TPM / Install Encrypted

I'm going to be installing 24.04 Nobel Numbat here in a few days. I have a brand new computer ASUS ROG STRIX X670E-F GAMING WIFI / AMD Ryzen™ 9 7950X3D × 32. I tried with 23.10 and it still asks me ...
Allen Crist's user avatar
1 vote
0 answers
32 views

Ubuntu 22.04 home directory encryption on a shared computer

First time poster, hi! I'm an IT support person and I have a need to explore what encrypting home directories on a shared machine running Ubuntu 22.04 would look like. I have read this article that ...
work_ubuntu_acct's user avatar
0 votes
0 answers
44 views

Do not ask for LUKS password at boot

LUKS is used on a Ubuntu 22 PC to encrypt the whole disk. So, each time the PC is booted, 2 passwords are requested: LUKS password to decrypt the disk, then the login password to log in. Is it ...
Mimi's user avatar
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0 votes
1 answer
51 views

PC does not boot after installing nvidia driver on ubuntu 20.04 installed on encrypted disk

I just installed ubuntu 20.04 on a HP Z1 TO COMPLETE I enabled LUKS disk encryption in the ubuntu installer, and ubuntu works well, no problem to boot. After installing nvidia driver 470 then the PC ...
Mimi's user avatar
  • 1
2 votes
1 answer
205 views

Filesystem with encryption support

I need filesystem level encryption with the following features: directory encryption. being fast. being based on passphrase. has less overhead. only the user who decrypt it can access and see the ...
hamidi's user avatar
  • 263
0 votes
0 answers
42 views

Crypttab timeout

I have Ubuntu 22.04. I have no any strings about timeout= in my manual page (man crypttab). However it is in manual on Internet (Crypttab). Does it mean my crypttab not support timeout=? Why I cannot ...
Bob's user avatar
  • 208
1 vote
1 answer
55 views

USB external disks encrypted with LUKS not providing SMART data [duplicate]

I have a Seagate external 5TB "expansion" disk, connected over USB. It is encrypted using LUKS. The disk started clicking and re-spinning suspiciously. So I want to see the SMART data to see ...
Ondra Žižka's user avatar
0 votes
0 answers
91 views

Installing Ubuntu 23.10 on a separate NVME SSD than Windows 11 with Bitlocker

Yesterday I tried to get some help on fixing my grub2 after removing grub customizer and was unable to do so with any of the responses and my question was closed as resolved. I have decided it may be ...
LastBucsfan's user avatar
0 votes
0 answers
85 views

Can I decrypt an encrypted USB-HDD using a USB enclosure case, other than the one used for encrypting?

I encrypted an external USB-HDD and it works like a charm, I can decrypt using the password when manually mounting or even automatically decrypt with using the proper settings to do so with using the ...
Geppettvs D'Constanzo's user avatar
1 vote
0 answers
55 views

How to recover a deleted LUKS partition

I have created a LUKS encrypted pen drive with the gnome-disks tool, but a time ago I have accidentally formatted the disk, losing the partition. I tried to recuperate the partition stored on sda1 ...
Romu_W's user avatar
  • 11
0 votes
0 answers
72 views

Ubuntu/Xubuntu 22.04 installation issue with RAID and full disk encryption

I'm trying to install a ubuntu or xubuntu 22.04.4 with minimum install to a device that has RAID 1 configured in BIOS. During installation I selected to erase disk and use LVM with new Ubuntu ...
John W's user avatar
  • 1
0 votes
0 answers
54 views

Volume group "encrypted" not found - error message during boot - I did not set up any volume groups

It was working the previous days normally, but suddenly I got this error message during the boot somewhere around the end of init-premount or beginning of local-bottom or in-between. Volume group &...
Valentin Stoykov's user avatar
0 votes
0 answers
38 views

Inaccessible Data after LUKS2 encryption

I tried to encrypt a HDD with an exisiting EXT4 partition on it using Luks2. First I made room for the LUKS2 header (probably the issue I assume...): resize2fs / dev/sdc1 2929710000 Then I started ...
Leo's user avatar
  • 1
0 votes
0 answers
73 views

Ubuntu 22.04 not booting on Dell XPS 13 9320 after fresh install (Dual boot Windows 11)

I recently bought a Dell XPS 13 9320 with Windows 11 pre-installed with the intention to install Ubuntu alongside on dual boot, with encryption. I followed these instructions: https://www.mikekasberg....
ubuntophe's user avatar
0 votes
0 answers
72 views

Is it possible to use old home folder after encryption?

My company wants me to format my computer and do disk encryption however I have tons of customizations on my pc so I don't want to lose them. I thought I can copy my home folder into external disk and ...
Syrenthia's user avatar
0 votes
0 answers
38 views

Protect system disk from attaching to another machine

I have a device (Raspberry PI 3, Orange PI 5) with SSD as main disk, running under Ubuntu 22.04. This device should be autonome, i.e. autimatically reboot and autorun some services. There is some ...
Yurii Zhukow's user avatar
0 votes
0 answers
61 views

Move Ubuntu 22.04 to hardware hp p410i RAID1 with encrypted volumes on BIOS

I have an old hp n40l microserver with Ubuntu 22.04 on board with quite old BIOS as of 2012. Now my SSD 256GB disk is split to 2 partitions: /boot/efi and /. I've bought hp p410i RAID card, and 3 more ...
Oleksa's user avatar
  • 318
0 votes
0 answers
85 views

Unlock bitlocker drive using udisksctl > error

I try to use udisksctl to unlock a bitlocked drive. The key is stored in keyhorse, and I can get it using secret-tool. The command I tried is: udisksctl unlock -b /dev/nvme0n1p3 --key-file <(secret-...
fffred's user avatar
  • 131
0 votes
0 answers
251 views

Can TPM-backed full-disk encryption feature on ubuntu 23.10 be used to encrypt secondary hard disk except for the OS one?

I have already used this TPM-backed full-disk encryption feature to encrypt the OS disk during new installation of Ubuntu 23.10 successfully. And test passed when I attached this disk to another ...
Rex's user avatar
  • 1
0 votes
0 answers
27 views

Can't warm boot with custom MOK

I can no longer warm boot after enrolling a self-signed MOK. However, there is no issue if I try to cold boot. During warm boot, after I enter a decryption key for LUKS, I get a 'Set up successfully' ...
neuling's user avatar
  • 25
0 votes
0 answers
31 views

How can I install old HDD with Ubuntu 20.04 full disk encryption from old PC hardware(Intel) to new PC hardware(AMD)

I had an old PC (Intel) with a HDD encrypted with Ubuntu 20.04 full disk encryption. Unfortunately, the hardware failed. Thankfully, the HDD seems intact. So I bought a new AMD-based PC (new CPU, new ...
ttyty's user avatar
  • 1
0 votes
2 answers
167 views

PGP, S/MIME and Thunderbird

I am using PGP encryption for my emails, my friend uses S/MIME. We both use thunderbird to write emails. When he writes me a signed email, I can verify the signature and, similarly, he can verify mine....
igel's user avatar
  • 167
0 votes
1 answer
106 views

I was installing / enableing fips 140 , rebooted as instructed now my wifi wont let me log rejecting the correct pw. Running Ubuntu Studio 20.13on

I was attempting to make a compliant Laptop and after enabling fips 140. I can no longer log in to my Wi-Fi networks with what were the proper passwords, it asks for password or security encryption ...
Daniel Kerr's user avatar
1 vote
0 answers
77 views

Is there a manual process to reseal TPM FDE keys based on current system measurements in Ubuntu 23.10?

There are a couple similar questions out there, but here is what I'm trying to figure out... In Ubuntu 23.10, if you change the system config or firmware, then unsealing the TPM isn't going to work, ...
user1766309's user avatar
0 votes
1 answer
148 views

Disk decryption on boot not working on Lubuntu

There's a prompt on boot. After entering my password and hitting enter nothing happens and boot doesn't continue. It just freezes. I'm on 22.04.3.
H3R3T1K's user avatar
  • 2,431
0 votes
0 answers
254 views

How to automatically unlock on boot a Ubuntu encrypted boot disk drive?

Please, there is any way to easily auto unlock encrypted boot disk on Ubuntu, as we have using bitlocker on Windows? I saw this process, but I don't think that it will work (seems that I am not using ...
Ivan Carlos's user avatar
0 votes
0 answers
190 views

My ubuntu 22.04.2 wont boot after successful LUKS decryption

my disk is encrypted using LUKS and everytime I open my pc I always need to provide the write password before I can log in into my device, so as usual I open my pc ready to work, and as usual I was ...
Lowe Andaya's user avatar
-2 votes
1 answer
102 views

How can I re-encrypt my laptop? After windows 11 dualboot with ubuntu 23.10

How can I re-encrypt my laptop? When I turned it on I had windows 11, and I wanted to dual boot it with ubuntu 23.10. I had to disable the windows 11 bitlocker to install it. After installation I can'...
Michael-Liendo's user avatar
0 votes
1 answer
76 views

Can't open pdftk-encrypted PDF in Acrobat

When I encrypt a PDF using pdftk under Ubuntu 22.04, I cannot decrypt it using Adobe Acrobat under Windows. Following instructions here, I encrypt a PDF using pdftk: pdftk input.pdf output output.pdf ...
Bolio's user avatar
  • 307
2 votes
0 answers
43 views

After full disk encryption: set output for successfull password

I recently set-up a new Ubuntu 22.04 system with full disk encryption following this guide. Everything seems to work fine. However, the UX is not perfect. Upon start-up I get prompted to enter my ...
cis's user avatar
  • 228
0 votes
1 answer
605 views

Prompted for luks encryption password on boot despite specifying a keyfile

I have a working installation of Kubuntu 22.04 on a LUKS encrypted ext4 partition of device nvme0n1. When I boot up my computer, it prompts me for the encryption password before proceeding to boot ...
Max's user avatar
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