LUKS (Linux Unified Key Setup) is a disk-encryption specification.

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luks volume disappears after reboot

I created a separate partition on a CentOS install (VirtualBox), and am attempting to encrypt it using cryptsetup and LUKS. I'm using the following commands to get this set up: cryptsetup luksOpen ...
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how to clone images of drives with LUKS+LVM2?

I have 2 Debian boxes which I need to upgrade. In the past, before upgrading any box, I have used Clonezilla to create an image of each of the box's harddrives for use as disaster backup, in case ...
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Difference between cryptopts and crypttab

I'm setting up an encrypted root fs, which I've done before, but this time I'm using a PGP-encrypted keyfile with a symmetric password to familiarize myself with the process. There are two places ...
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How to create separate usr partition during arch install?

How do I modify and add the hooks needed in mkinitcpio to have a separate usr partition? Also, am I mounting the other partitions correctly? http://imgur.com/Rxt6o1g Basically I'm using UEFI with ...
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96 views

Mounting failed - invalid argument

I've setup a Kali Linux installation on an SD card and created an encrypted LUKS partition with a LVM logical volume inside of it, then created a BTRFS filesystem inside. Almost everything works, but ...
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Automatically shred LUKS partition upon X failed decryption attempts?

Is it possible to set up a bootloader that automatically begins shredding the header.img file and then the encrypted partition itself upon X failed attempts at decrypting the partition? If this does ...
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181 views

Debian error message: “Unable to find LVM volume”, but then boots successfully

I was trying to encrypt all the HDD during the installation process of Debian 8 Jessie using full disk encryption + LVM, and I did it, but, there are a little "problem". Before the system asks me the ...
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55 views

How to move the bootloader from a hard drive to a usb stick

I've decided to move my Debian bootloader and /boot from the hard drive to a USB stick. I'm using LUKS to en/decrypt my hard drive and the bootloader is the only unencrypted partition. How can I ...
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Is there an unencrypted but signed filesystems?

I'm curious if there is a filesystem that's unencrypted, making it readable by anyone, but employs a digital signature scheme so as to require that writes be digitally signed. I suspect the answer ...
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Abysmal general dm-crypt (LUKS) write performance

I am investigating a problem where encrypting a block device imposes a huge performance penalty when writing to it. Hours of Internet reading and experiments did not provide me with a proper ...
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Recover LUKS partition after overwriting first few bytes of LUKS container? System still up!

I have a 1.5 TB partition of data, of which I accidentally overwrote some bytes at the beginning, due to a typo like: ssh somewhere command | dd of=/dev/sda3 // should have used quotes here, dd ...
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Does the speed of a USB bootloader matter?

What I am trying to do Create an encrypted arch linux setup using LUKS. Bootloader must be on USB. QUESTION Does the speed of USB-device matter? Does the system contiously use the bootloader to ...
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Unlock LUKS volume without root access - how does that work?

It seems I am trying to do the same as the user who asked this question: Unlock LUKS partition using keyfile without root access? The answer from frostschutz explains that this is impossible. I am ...
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60 views

Are encrypted volumes more vulnerable to power loss?

I have some encrypted volumes that I use with my Xubuntu machine. One volume is a container file that is mapped to /dev/loop0 and encrypted using plain dm-crypt; another volume is a USB hard drive ...
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108 views

How do I partition my disk to install encrypted Debian installation alongside OSX?

I have a 500gb drive on a recent MBA. I have shrunk the OSX partition to 250gb to allow me to install Debian in the empty space. When I go through the Debian installer, the guided partitioning only ...
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LUKS Encrypt volumes during Pidora install on Raspberry PI

I have a Raspberry PI and I would like to LUKS encrypt all volumes during the Pidora install process, but it seems there are no options in the GUI installer to do so. I would not like to add ...
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Defending against the evil maid, how to handle removal of the /boot partition

When using LUKS full disk encryption, how would you go about protecting against evil maids ? The evil maid attack is when someone gets physical access to your computer while you're away and ...
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Mounting LUKS from the command line

When in nautilus or caja I click on the icon of an encrypted disk and enter my password, the underlying block device gets mapped to /dev/mapper/luks-$UUID and it gets mounted at/media/$USER/$DISK, no ...
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How do I decrypt this hard drive?

In 2011 I installed Ubuntu server edition on an old Dell that I had laying around. During the install process I was using the gui installer and opted to set disk encryption on the disk drive. During ...
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126 views

cryptsetup luksFormat - cannot open device for read-only access

I created a new partition that I would like to encrypt with LUKS. The device is a 1GB partition with ID 83 (Linux). I've changed the owner to root, and chmod to 777. The command I'm using is : ...
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347 views

Mount encrypted volume in Debian

I was given a HDD that was encrypted using dm-crypt and I'd like to mount it as /disk2 preferably having the decryption password stored in a file, so I won't have to enter the passphrase when booting, ...
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116 views

List open dm-crypt LUKS volumes

If I mount a simple loop device, losetup -a give me the devices opened. Is something similar possible with cryptsetup?
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Unlock LUKS partition using keyfile without root access?

Is there any way to unlock LUKS partition using keyfile while not having root priviliges? (using sudo is not an option) I know that udisksctl can open LUKS partition, however it can do it only with a ...
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261 views

Booting Gentoo on LVM inside LUKS with gpg encrypted keyfile

I'm trying to install Gentoo on LVM logical volume inside LUKS container encrypted with key file encrypted by GPG with passphrase. Everything was going smoothly until I tried to boot. I'm building the ...
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Kernel panic if LUKS password is bad x times

Q: Is it normal if a RHEL 6.5 machine kernel panics if I type the LUKS password a few times wrong?
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How to recover after removing only LUKS key?

In a stupid attempt to disable LUKS encryption, I have done cryptsetup luksRemoveKey to my only key. So now everytime I try to boot my Fedora-21, it asks for the passphrase but obviously does not ...
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Recover LUKS file/container that was lost during accidental reformat?

I created a LUKS file and was using it to store family pictures as well as backups for my Linux system. It was on a 1TB external HD. I accidentally dd'd the HD with a Debian iso image. I panicked and ...
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Can Grub2 multi-boot LUKS/LVM distros with only one boot partition?

There are many tutorials on the internet for multi-booting unencrypted distros using a single boot partition and chainloading. For example, booting 145 OSes. Likewise, there are tutorials for ...
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How to mount a disk encrypted with cryptsetup(crypto_LUKS) in Ubuntu 14.04?

I have a 4TB Disk formatted as NTFS and some data has been written into it. I then tried to encrypt it and mapped it to /dev/mapper/volume_sde1 like this: $ lsblk -io ...
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Automatically prompt to decrypt external LUKS filesystem in GNOME session?

I have a LUKS filesystem on a USB hard drive and I'd like to have the system generate a GUI prompt whenever the device is connected to the computer to provide the decryption password, then mount the ...
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140 views

Recovering a LUKS partition

I have a drive with 2 partitions 1st is plain ext4 2nd is encrypted LUKS. The partition table has been overwritten. I've found the beginning of the second partition, which I need to recover, ...
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Systemd config for later mounted encrypted volume with services working on it

Hi everyone, I am working on a Banana Pi with Arch Linux and i am currently trying to accomplish the following: After someone mounted the encrypted keyfiles for my external storage systemd shall use ...
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Grub-install: embedding is not possible in Bios/GPT

I am struggling with setting up an encrypted NAS for some days now. The basic plan is to have btrfs on lvm on luks on raid1 with lvmcache in writeback mode thrown in for the root partition to reduce ...
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Cannot run cryptsetup throught SSH?

I'm trying to open a LUKS drive through SSH directly. ssh root@XX "cryptsetup luksOpen /dev/sdb3 secure But, no password prompt and it stuck. debug1: Sending command: cryptsetup luksOpen /dev/sdb3 ...
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unable to open luks encrypted device (wrong password)

I'm using CentOS 7 with a luks encrypted root partition. Usually I have to type my password during boot, but sometimes the system doesn't accept it. It reacts as it was wrong, but it isn't. I did not ...
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LUKS partition is unlocked after first use

I just tried to move /usr to a small ssd I recently purchased. The ssd is formatted with LUKS and btrfs. Apparently systemd fails to start the cryptography target before the partitions are first ...
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Physical volumes, logical volumes, superblocks gone… how to boot?

A story fairly similar to this one happened to me yesterday. Update: My only hard drive /dev/sda was originally partitioned this way: Device Boot Start End Blocks Id System ...
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Unable to boot with dracut and luks: '/dev/resume' : file exists

I am installing gentoo and have performed my first reboot after configuration and installation within my chroot environment. I am using LUKS and LVM to manage encryption of my drives. I am encrypting ...
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113 views

BASH - Command not found - LVM over LUKS Automation Script

I've been working a bash script to automate the process of opening and closing an LVM over LUKS external hard drive. However I continue to receive errors on line 28: $(vgchange -a n ; cryptsetup ...
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adding encrypted /home in LVM/LUKS

I installed a new (debian) system to an SSD device. After standard install I want to mount /home on the internal HDD. To be able to ask the question, some details: On install I (manually) generated ...
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LUKS key from known password?

I have a hard drive with Ubuntu 14.04 installation - root partition was encrypted with LUKS. I had some configuration problems and wanted to re-install Ubuntu but keep all my data so I moved all my ...
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2answers
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Unlock LUKS encrypted Debian root with key file on boot partition

I'm trying to decrypt the Debian root with a key file stored in the boot partition (decrypted partition). This will break the security, but it doesn't matter now. I have to conclude this successfully ...
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1answer
130 views

Formatting LUKS encrypted disk

How do I format LUKS encrypted disk if I don't know the passphrase? I recently switched my HDD for a new SSD disk in my laptop and now when I connect the old HDD externally I can't mount disk event ...
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Linux Volume Encryption: Possible to specify your own Encryption Tool?

I want to use Volume Encryption on my Debian machine. Linux does have such a tool for that. But I want to use my own encryption tool to encrypt a partition. Now, is it somehow possible to specify it ...
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194 views

boot fails with “cryptsetup: lvm fs found but no lvm configured” [dual boot(2xlinux LVM, dm-crypt+luks)]

I have a dual-boot(xubuntu/#!) setup LVM with dm-crypt+luks as follows /dev/sda1 = /boot (xubuntu) /dev/sda2 = /boot (#!) /dev/sda3 = encrypted LVM /dev/mapper/volgroup-xroot = / (xubuntu) ...
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185 views

Meaning of fsync() in sshfs+LUKS setup

Background: I'm investigating methods for encrypted storage on untrusted machines. My current setup uses sshfs to access a LUKS-encrypted image on the remote machine, which is decrypted locally and ...
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Change password on a LUKS filesystem without knowing the password

I have a Debian Wheezy server that's been running for a while with an encrypted drive. The password for the encrypted drive (/dev/sda5) was lost when my encrypted password file was corrupted. I'd ...
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Replicate a complex partition structure with LUKS and LVM volumes

I have two external hard discs on an OpenSUSE 13.1 system. On one I have created a partition structure: An encrypted LVM partition (LUKS) Several volumes (10) on this LVM partition, some formatted ...
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LVM Ontop of LUKS using Grub

What am I trying to do? Install Arch with full system encryption (sans boot and media partition) using LVM on top of LUKS on an external hard drive (sdb) using: ...
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How to identify LVM-over-LUKS or LUKS-over-LVM

I recently installed Fedora 20. I don't recall what exact options I chose for encrypting the disk/LVM during installation. It installed fine and I can log in etc. Here is the situation I have: I ...