Comments on: How to use TrueCrypt®-encrypted Windows system drives on Linux

By: oli

oli — Sat, 21 Jan 2012 10:19:04 +0000

Hi Jan,

can you change the method boswap from int to unsigned int? Then it works nice on x86_64. I noticed my results in my blog. Check it out if you like :)

Your tool should be included in truecrypt. This is really a damn nice thing! Maybe i will write a GUI when i have some free time if its not included in TC.

By: B.Ok

B.Ok — Fri, 20 Jan 2012 17:24:13 +0000

Hi guys,

Great tool followed by a nice debug chit-chat, a bit too technical for me i must confess.

Your article (s)/tool however is a sublime finding for me as it helped me understand why i repeatedly fail to mount a windows-made-truecrypt-drive (full drive encryption, non system drive).

Im eager to try it out in an attempt to mount the encrypted volume which has boot sector problem that i want to fix (i accidentally formatted the Drive under windows. It was not mounted when the blunder took place).

First, under windows, i fixed a header mismatch issue using TrueCrypt.
Afterwords, i could mount the device but couldn’t not accessed it because Windows don’t recognize the file system.
I used Testdisk to no avail trying to recover from the Boot Sector Backup.

I tried various Drive/Partition recovery tools but only WinHex could detect the mounted Volume (so it could help fixing the matter hopefully_im waiting for a reply from the developer of that application as to the chances of recovery…).
Meanwhile i keep on searching for alternative solutions like booting from a LiveCd, then use Truecrypt to load the Volume, ….

Enters your Tool.

Shall keep you posted on this one.

Thanks Guys.

B.Ok

By: Jan

Jan — Thu, 19 Jan 2012 11:58:03 +0000

Thanks for looking into this, oli. I’ve just uploaded a new version of dmsetup-tc that should hopefully fix the checksum validation. See if it works better for you.

By: oli

oli — Thu, 19 Jan 2012 11:22:18 +0000

Sorry, forgot to mention the link:
http://l33tbox.de/index.php?/archives/8-Mounting-a-truecrypt-encrypted-windows-system-under-linux.html

By: oli

oli — Thu, 19 Jan 2012 11:21:17 +0000

Back again. I wrote a little entry in my blog. Would be nice if you could check this out. Thanks alot for your tool, its working like a charm!

By: oli

oli — Wed, 11 Jan 2012 10:21:07 +0000

hi, first of all: thanks for your tool.

unfortunatly its not working:
[root@lucy dmsetup-tc-0.2]# ./dmsetup-tc /dev/sda /dev/sda1
Enter passphrase for encrypted volume:
Your volume header is corrupted. I suspect faulty RAM. Have it checked
(and possibly fixed) and restore the header from your rescue CD.

i already did that and its working fine when i start the tc loader. also did a memtest86 – everything ok. btw. would be nice (eg. for exactly that case) to load the stuff from the rescue cd instead of /dev/sd(x) – it would be possible than to rescue data from a system without touching anything :)

By: Scott Smith

Scott Smith — Wed, 20 Jul 2011 23:53:07 +0000

I am SO grateful for your work on this! What a wonderful contribution to the Linux toolbox.

By: biso

biso — Sat, 27 Mar 2010 17:58:23 +0000

i m a new user to truecrypt.is it possible to excess the the encrypt data when truecrypte has been uninstalled from the system.(whether the data will be lost).
though we are using true crypt if someone delete the space we create by truecrypt , how can we prevent from this things.

By: J. C. Denton

J. C. Denton — Wed, 21 Jan 2009 16:35:02 +0000

main.c line 207:

res->size = 128;

should be

res->size = 64;

Am I right ? (Has no effect though, since “size” is never used again here as far as I can see … )

By: Carb Bar

Carb Bar — Sat, 03 Jan 2009 08:14:35 +0000

I’ve just tested ext2fsd against truecrypt under windows, not work. like ext2ifs, it would only mount disk partitions but not logical drives. at the moment..
thanks for dmsetup-tc just what I needed!