How to access a BitLocker-encrypted drive in Linux?

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42

I have a laptop running Windows 7 Ultimate. I have encrypted my drives using BitLocker. Now I have also installed Lubuntu along with Windows. But my encrypted drives are not visible in Linux. How can I fix this?

Suyash Mohan

Posted 2012-01-09T18:43:24.640

Reputation: 955

There's a pretty detailed answer at https://askubuntu.com/a/617989/25639 too.

– unhammer – 2018-04-24T07:40:16.210

4Hi Zeal, is your question answered sufficiently? If so, please pick an answer to close the question. – Brett Dikeman – 2012-01-13T19:49:21.770

Answers

65

You can access BitLocker partition under Linux using Dislocker, an opensource driver which is using FUSE (or not).

For that, you need the file on a USB key (the one with the .bek extension) or the recovery password.

Aorimn

Posted 2012-01-09T18:43:24.640

Reputation: 651

6@Aorimn if Bitlocker is a proprietary Microsoft encryption method... how is it you've managed to interface with it? – Ashley – 2016-02-01T17:05:07.337

1But i don't have any USB key or recovery password. I did not setup the encryption, it came encrypted from factory settings. Where do i find the key? – Youda008 – 2018-09-20T16:40:49.200

@Youda008 if it still boots, run manage-bde -protectors -get c: to retrieve the key - at your first available opportunity. Otherwise if it decides to stop booting one day (e.g. BIOS change), it will be unrecoverable. – mwfearnley – 2019-12-11T08:50:37.817

5Fairly recent file dates, looks like it's being maintained. With write capabilities. – Fiasco Labs – 2013-10-21T23:04:44.647

It seems @Aorimn is mantaining a version on github: https://github.com/Aorimn/dislocker/tree/develop

– adosaiguas – 2014-05-21T00:29:53.013

32

Thanks to Aorimn, his solution worked for me. I'm fairly unexperienced with Unix, so it cost a few hours to figure it out. I thought I would describe the steps I took while my backup is running :)

My problem was that I could not boot Windows, and I needed a way to access my files on a Bitlocked partition. In order to do this, you need a bitlocker recovery password (8 groups of digits) and the ability to boot your system from USB.

  1. Download and install LiLi on an other Windows machine (Linux Live USB Creator)
  2. Start LiLi and have it download a lightweight ubuntu image. I chose Xubuntu.
  3. Install the image to your USB stick.
  4. Boot the problematic machine with the USB stick
  5. When you see the ubuntu boot screen, press a key.
  6. Under F6, set the following options: nomodeset, acpi=off, noacpi and nolacpi
  7. Boot ubuntu.
  8. Make a folder /media/windows and /media/mount.
  9. Download and extract dislocker
  10. sudo apt-get install libfuse-dev libpolarssl-dev
  11. change directory to the dislocker/src folder
  12. sudo make
  13. sudo make install
  14. change directory to /usr/bin
  15. sudo fdisk -l
  16. identify the partition which is bitlocked. Mine was /dev/sda1.
  17. sudo dislocker -r -V /dev/sda1 -p315442-000000-000000-000000-000000-000000-000000-000000 -- /media/windows (replace your own bitlocker key and source partition)
  18. change dir to /media/windows (use sudo -i if you can't access it)
  19. mount -o loop dislocker-file /media/mount
  20. You should now see your files in a mounted drive of the file manager.

Backups are fairly slow, but it might save some trouble if you do end up reinstalling windows. Good luck!

Jodiug

Posted 2012-01-09T18:43:24.640

Reputation: 421

2dislocker is now (as of Ubuntu 18.04) available in Ubuntu's repositories, so you can install it by running sudo apt install dislocker instead of building from source. – Dominik – 2018-05-14T14:15:18.200

Is there a solution other than using dislocker? The problem is that dislocker requires compiling and (like virtually every other time I try) compiling fails. – Tensigh – 2018-08-02T08:04:23.623

5From the above steps I wasn't clear how dislocker is functioning, so here is the info, from the source "With FUSE, you have to give the program a mount point. Once keys are decrypted, a file named dislocker-file appears into this provided mount point. This file is a virtual NTFS partition, so you can mount it as any NTFS partition and then read from it or write to it." – xpt – 2014-02-20T14:59:18.290

7

I just worked out a way to update Kali Linux and install dislocker.

Using Kali Linux 1.0.9a i386 bootable DVD

Edit "/etc/apt/sources.list" and add:

deb http://us.archive.ubuntu.com/ubuntu trusty main universe

Install programs using Terminal:

apt-get update"
apt-get install git libfuse-dev libpolarssl-dev # Continue through update text, allow services to restart if needed
git clone git://github.com/Aorimn/dislocker.git
cd /dislocker/src
make
make install

Find drive Bitlocker volume:

fdisk -l

Make folders in /mnt: tmp, dis.

Run dislocker:

dislocker -v -V /dev/<volume name> -p<Bitlocker key> -- /mnt/tmp

Check if file exists to confirm proper Bitlocker key:

ls /mnt/tmp

Should return dislocker-file if correct.

Mount volume:

mount -o loop,ro /mnt/tmp/dislocker-file /mnt/dis

Browse to /mnt/dis for access to files.

Dopefish

Posted 2012-01-09T18:43:24.640

Reputation: 71

dislocker doesn't work in Kali Linux 2.0. When I try the make command, following output appears:

dislocker-fuse.c:35:19: fatal error: fuse.h: No such file or directory

And manually handling ( apt-get install libfuse-dev )

The following packages have unmet dependencies: libfuse-dev : Depends: libselinux-dev

– cagcak – 2015-08-18T14:24:12.343

Great step-by-step instructions. Only thanks to this I learned that the dislocker command is not mounting itself (like sshfs or other things). – Tomasz Gandor – 2018-05-11T07:37:51.300

2

BitLocker is a proprietary, closed-source drive encryption system only supported by Windows. You'll have to remove BitLocker encryption if you want to access your Windows partitions from Linux.

See What is the difference between disabling BitLocker Drive Encryption and decrypting the volume? for instructions on doing so. It would be advisable to have a backup of your data completed first.

Once the drive is decrypted, you can use TrueCrypt instead; reading a System Encryption volume under Linux isn't supported by default, but someone has figured out a work-around. See How to use TrueCrypt®-encrypted Windows system drives on Linux.

At the very least, review the TrueCrypt documentation and more specifically, the list of supported OSes.

Yet another option is PGP Whole Disk Encryption. See PGP Whole Disk Encryption for Dual Boot Linux and Windows XP.

Brett Dikeman

Posted 2012-01-09T18:43:24.640

Reputation: 1 112

Perhaps update for TrueCrypt. Steve Gibson has a page for it.

– Peter Mortensen – 2015-05-04T11:15:27.663

3

@BrettDikeman You may want to adjust or delete your answer as it does not apply (or is no longer true). See https://superuser.com/a/421314/118989.

– Jonathan Komar – 2017-06-20T07:18:32.110

@TomaszGandor what is the update exactly? Is bitlocker not closed-source anymore? How does Dislocker actually get 'around' it? – user2305193 – 2018-07-05T20:48:06.030

1

The only thing I've found that might help you is NVbit. It's an experimental fuse driver that allows you to access BitLocker volumes. It's still in an alpha state, and it looks like you'll have to compile the code yourself. It also only allows read-only access, and some things might not work. I think it's your best bet, though.

SaintWacko

Posted 2012-01-09T18:43:24.640

Reputation: 1 482

I agree this is probably your best bet at the current time. – Mark S. – 2012-05-19T02:48:24.133

for those that downloaded extracted and installed dislocker, and find it to be a bit buggy, use this command while cd'd in the src folder. sudo make uninstall – blade19899 – 2012-10-12T16:58:49.400

@MichaelHampton NVbit: Accessing Bitlocker volumes from linux. Looks good to me. – SaintWacko – 2013-01-07T14:25:36.257

How usable is it? Apart from "The code is in alpha state."", I also see "The research was done around an year ago.Work was stopped prematurely,Don't expect things in clean/finished shape." Moreover, It also only allows read-only access, while dislocker at least allows RW access. Any first-hand experience-user comment please? – xpt – 2014-02-20T15:05:39.010

@xpt I don't have any experience with it, I just found it through Goole-Fu. I would recommend using Dislocker, as it's newer, and appears to be in much better state than what I found. – SaintWacko – 2014-02-20T16:38:00.017

0

Please note that libpolarssl-dev can't be used, it has been supersede with libmbedtls-dev so use this instead:

sudo apt-get install libmbedtls-dev

Note: by the way, it was a success using live boot. I am able to read and write. Just follow above steps.

kelvin singh

Posted 2012-01-09T18:43:24.640

Reputation: 1

Asked: 2012-01-09T18:43:24.640

Viewed: 282 955 times

Active: 2019-06-25T19:06:16.290