All questions relating to LUKS (the disk-encryption specification) for Linux

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0
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0answers
7 views

Restart after install taking 'forever'

I just installed Ubuntu 14.04.03 from a custom cd with just a couple extra programs plus firewall configuration. Before I started the install, I installed the system76 driver and nvidia graphics card ...
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0answers
11 views

After upgrading of a kernel from the **3.19.0-15** to the **3.19.0-26** it shows me color lines on boot

CPU: Intel Core i7-4770. GPU: NVIDIA Corporation GK104 [GeForce GTX 760] (rev a1). Ubuntu 15.04 with LVM on LUKS: sda 8:0 0 111,8G 0 disk ├─sda1 8:1 ...
0
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0answers
17 views

Xubuntu 15.04 post install encryption

I have just installed Xubuntu 15.04 with /boot, /root, /home and swap all on different partitions, however the out of the box installer only gave me the option to encrypt /home. I want to encrypt ...
1
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1answer
7 views

Getting “Disk /dev/sdX doesn't contain a valid partition table” on LUKS external drive

Wanting to make sure I'm doing this right. I get the warning on both /dev/sdX and "/dev/mapper/luks-xxxx-xx. . ." when I run fdisk -l. This is what I did to encrypt it: cryptsetup -y -v luksFormat ...
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0answers
14 views

Unlocking the disk (sda5_crypt) , Full encryption [closed]

I activated full-disk encryption when I created Ubuntu, but I want to disable it. How would I do this?
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0answers
30 views

LUKS + LVM at Install Time

I am trying to use the Ubuntu 14.04.3 LTS installer to create a disk layout that logically looks like this during installation: /dev/sad | +-- /dev/sda1 (/boot) | +-- /dev/sda2 (LUKS) ...
0
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1answer
32 views

How to change file text content only with Shell Script commands?

In a file, there is: sd5_crypt UUID=1337 none luks,discard I'd like to change it to: sd5_crypt UUID=1337 /dev/disk/by-label/MON_LABEL_ICI:/keyfile luks,keyscript=/lib/cryptsetup/scripts/passdev ...
0
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0answers
13 views

Opening encrypted disk at boot using crypttab and decrypt_gnupg doesn't work

I have a Volume that is encrypted with a GnuPG pass phrase encrypted key. I can open it, using manual commands, like this: gpg -d key.gpg | cryptsetup luksOpen /dev/sdb2 cryptvolume This works ...
3
votes
1answer
78 views

What is the proper way to install Ubuntu 15.04 with LVM, LUKS, and manual partitioning?

I am trying to install Xubuntu 15.04 with LVM and LUKS, manually partitioning in order to have a separate /home partition. So far I have booted the Xubuntu live CD and went through these steps: ...
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0answers
7 views

Problems to mount a crypto-luks in ubuntu

I have a drawback of novice person, I encrypt my hard drive with crypto - luks in ubuntu and now I can not access my data , I have tried everything I seen but always gives a different error , please ...
1
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2answers
36 views

Mask my Desktop for my ubuntu-based Wifi hotspot/router

I used Ubuntu to build a Wifi HotSpot. You can join the Wifi and access Internet. It is used in some area without lots of Internet access in Africa, Island and Greenland. Since we're responsible for ...
0
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0answers
15 views

LUKS encrypted: 2 keys, a passphrase and a keyfile, how to priorize keyfile?

I have installed Linux the LUKS way. I provided the passphrase. Later, I made a keyfile (with a random key) and added it to /etc/crypttab specifying its path. I get something like: # <target ...
2
votes
1answer
79 views

Boot folder on external USB pendrive, how to boot to?

My machine is LUKS-encrypted and boot works a charm (asking the passphrase at launch). I want to use a keyfile on a USB pendrive, thus the user has a dongle that the user must plug to launch Linux ...
0
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0answers
19 views

boot folder on my USB pendrive

I copied my boot folder onto a USB pendrive. (My FS is LUKS encrypted, I put the keyfile on the dongle, I want the pendrive to be plugged if a user wants to use the machine) I did it: put whole ...
0
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0answers
18 views

LUKS encryption + USB dongle keyfile = if not plugged, disallow passphrase prompt?

My laptop is LUKS-encrypted. I put boot & keyfile on a USB dongle: if the dongle is not plugged at boot, you cannot enter linux. But when I dont plug the USB dongle (which contain the keyfile), ...
0
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0answers
25 views

Nested crypto(luks) partitioning in ubuntu preseed

It is easy to define nested luks partitioning in ubuntu environment using following commands cryptsetup luksFormat /dev/sda(i) {entering passphrase: xxxxx} cryptsetup luksOpen /dev/sda(i) some_name1 ...
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0answers
12 views

mount encrypted disk with right permissions

I encrypted an external drive on my desktop computer, and I can conveniently mount/unmount it from Nautilus just entering the password. The problem is that when I mount it on my notebook (from ...
0
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0answers
21 views

LUKS encryption, switch from passphrase to keyfile

Using LUKS encryption, I set it during the Ubuntu installation. I entered a passphrase. But now I want to use a keyfile and I dont manage to find the right process to. How can I make the switch ...
3
votes
1answer
73 views

LUKS encryption, header on a dongle USBdrive?

I am going to install Linux the LUKS/LVM way, in order to have an encrypted disk. In addition, I would like to put the header and passphrase in a USB Key. Thus, instead of entering the passphrase, I ...
1
vote
1answer
43 views

cryptsetup luksAddKey throwing 'Maximum keyfile size exceeded' error - fix? 14.04

I am attempting to add a homekey entry to my /etc/crypttab in order to prevent entering a 3rd pass upon login on a 14.04 install w/ LUKS (root/swap/home). When I attempt to add the key using ...
0
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0answers
18 views

Unlocking at boot time Luks LVM

This is my first question, but let me start by saying how much of a big fan I am up this site. Every question I ever had over the last 4 years has been answered here and I am so grateful for the help ...
0
votes
2answers
98 views

Mounting encrypted LUKS partition from Live CD

Error to begin with, can't boot I had to do a hard reboot of my computer, and when booting up it (initramfs I think) gave an error: mount: mounting /dev/mapper/ubuntu--vg-root on /root failed: ...
0
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0answers
39 views

Unlocking luks encrypted partition automatically Ubuntu 14.04

I've been trying to resolve an issue unlocking a luks encrypted partition on boot using Ubuntu 14.04. I've set it up to automatically unlock after the root partition's password has been entered by ...
0
votes
1answer
79 views

Mount external hard drive with LUKS Encryption + LVM

I recently switched to a bigger Hard Drive by running dd if=/dev/old of=/dev/new However now I am trying to get some files that changed after copying, so I connected the old Hard Drive over USB. The ...
1
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0answers
20 views

Thunderbird Profile on LUKS Encrypted flash drive not working

I want to store my Thunderbird profile on an encrypted USB flash drive and run it from there because I often switch between two computers with identical setups: Ubuntu 14.04 with the same user ...
0
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0answers
15 views

How do I encrypt my HDD and combine with my other encrpted HDD

I am trying to combine 2 HDD's. One of them is already encrypted and is my boot drive. The other one is not encrypted and Linux doesn't see it as more disk space. Could someone explain me how to do ...
1
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0answers
27 views

LUKS partition lost?

I'm starting to getting desperate about a partition encrypted with LUKS which is not recognized anymore. Here's what happend: Tried to resize partitions on sdb5 (lvm1 in crypt-container1). Made a ...
0
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0answers
44 views

Can't mount encrypted usb stick

I had a truecrypt encrypted usb stick, which I decided to reencrypt in LUKS through disk-utilities. I encrypted it, tested if I can mount it and put all my files on it. However, after a reboot I can't ...
5
votes
1answer
173 views

How do I get dropbear to actually work with initramfs?

Bounty Bounty Bounty Bounty! So I'm trying to unlock a headless server running an encrypted version of Ubuntu 14.04. It is a virgin 14.04.2 install with all updates as of writing. I went thtrough ...
0
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0answers
26 views

Cannot acces encrypted usb drive

So I had a USB stick encrypted by truecrypt but as it isnt supported anymore I decided to reformat it with disk-utilities in LUKS. I overwrote everything and formatted the drive with disk-utilities in ...
1
vote
1answer
134 views

Initramfs + Luks - only one password prompt

What I want to achieve: Being asked for a password, only once during boot time; The other (non-root) partitions to use the keyfile inside the /root/ directory. What I have achieved so far: (A) ...
2
votes
0answers
90 views

cryptsetup: unknown fstype, bad password, ect. Bug? Ubuntu 14.04.2

I can't log in to my system at first I had gotten the following error: cryptsetup: unknown fstype, bad password or options? Ubuntu spammed this at boot. Now I can't run the Ubuntu OS ...
1
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0answers
48 views

How can I repair my LUKS / ext4 file system?

my computer was running the whole night and my only open windows where IntelliJ IDEA and Google Chrome. Today my file system seems completely corrupted. Linux Mint can't read any files and folders ...
0
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0answers
101 views

How to resize a crypt-luks partition that takes all hard drive?

I want to shrink the partition to be able to install a windows OS, but i installed ubuntu 15.04 with encryption of the logical volume, gparted doesn't support crypt-luks so what do i do?
0
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2answers
81 views

how to lock LUKS partition from terminal?

I need to lock opened luks partition from terminal as normal user. in other words, I need terminal command do the same as sudo cryptsetup luksClose <name> but without root privileges. ...
-1
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2answers
247 views

Encrypted SWAP partition creation after ubuntu 15.04 installation, 15.04 installer bugs!

Today I decided to install clean copy of 15.04. Using the installer partitioning tool, I created an encrypted luks system volume, then created an unencrypted SWAP, clicked continue, then got an error ...
0
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0answers
73 views

Plymouth script with LUKS Encryption

ive been hacking round with Plymouth themes on my Ubuntu 12.04 install and have noticed some strange behavior that I can't seem to explain (or solve) Note. I have two drives - both are encrypted with ...
0
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0answers
265 views

LUKS encryption over ecryptfs

My /home partition under Ubuntu is default encrypted (ecryptfs), but now the system isn't mounting it. Even worse, I don't even find the folder after encrypting for a second time with LUKS. This is ...
0
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0answers
54 views

Ubuntu fresh Luks/LVM Install “Operative System not Found”

I have a Dell Inspiron 7720 with two hdd, 1st: 1Tb and 2nd: 300Gb. The first hdd have Windows 8.1 Pro and i'm trying to install Ubuntu 14.04 LTS in the second. I made a fresh and clean install of ...
2
votes
0answers
105 views

Recover deleted full disk encryption partition

What I have: I have Xubuntu 14.04 installed on 500 GB HDD. The HDD consists of: Some small partition that seems to be for some EFI stuff a partition that holds /boot some free space at the end of ...
0
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0answers
43 views

How to disable “Remember forever” option in mounting encrypted disks

Whenever you mount an LUKS encrypted disk, Ubuntu gives you 3 options: Forget immediately Remember for this session Remember forever I wanted to know how to reset this choice after choosing the ...
1
vote
2answers
58 views

Encrypt second hard disk with same password

I installed Ubuntu 14 LTS with disk encryption (selected during installation). I have two questions: 1- What is encryption algorithm of current encrypted disk? 2- I have a second hard disk and I ...
0
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0answers
21 views

Dual boot with LUKS encryption with 2HDD's(Probably repeat)

As the header states, I am wondering it it's possible to do a FULL DISK encryption on my UBUNTU HDD while having windows on a COMPLETELY DIFFERENT HDD? Will Grub2 allow for this? If so.. How? ...
0
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0answers
176 views

LUKS encrypted FS can no longer be mounted after upgrading Kubuntu

everyone! I fresh installed Kubuntu 15.04 these days but before I copied my /home partition to a encrypted partition on my spare HD. The problem is that I can decrypt it but cannot mount the LVM no ...
-1
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1answer
249 views

Encrypted filesystem shared with Mac OS X

Is there a reliable encrypted filesystem that works under both Mac OS X and Linux? It need not be the boot partition for either Linux or Mac OS X, but I'd like stable reads and writes if possible. ...
1
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0answers
152 views

Ubuntu does not boot successfully with btrfs root partition errors

I have a setup on my laptop in which there are three partitions relevant to Ubuntu: a ext4 /boot partition, a btrfs root partition on LUKS and a swap partition on LUKS. Sometimes, after an unclean ...
6
votes
1answer
1k views

Yubikey Two-factor Authentication Full-disk Encryption via LUKS

I recently acquired a Yubikey Neo - a nifty little hardware second factor authentication device. It's primarily intended for use with One Time Passwords, and the emerging U2F protocol - but since ...
1
vote
1answer
92 views

LUKS and loop device

I read a lot of tutorials about LUKS/dm-crypt/cryptsetup, in particular about how to create an encrypted file container. First step is to create the file with dd. Then some tutorials map the file to ...
1
vote
0answers
67 views

Change the default option to “Forget password immediately” when mounting a Luks usb drive

I would like to do exactly what this poster wants to do: When a LUKS encrypted partition pops up the unlock window it gives 3 options for how to remember the password. The "Remember password ...
1
vote
2answers
48 views

What information should I preemptively store to be able to recover encrypted data?

All of the posts that I can find regarding encrypted-data recovery regard specific situations. I currently have functioning partitions and directories, but would like to maximise my chances of ...