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Create TrueCrupt NTFS on CentOS 
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Joined: Tue Jan 25, 2011 02:43
Posts: 3
Post Create TrueCrupt NTFS on CentOS
On my CentOS system I am now in the process of creating a TrueCrypt volume of my WD 2TB drive. (It is estimated to take 21 hours.) For the file system type I selected "none", and I checked the box to allow very large files.

Now when it is done, how can I create a ntfs-3g file out of this?
I have installed the ntfs-3g software, and I can see how to mount it, but not how to create it.

I also expect to use this volume with WinXP.

Thanks for your help.
Mike.


Tue Jan 25, 2011 02:56
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NTFS-3G Lead Developer

Joined: Tue Sep 04, 2007 17:22
Posts: 1286
Post Re: Create TrueCrupt NTFS on CentOS
Hi Mike,

Quote:
Now when it is done, how can I create a ntfs-3g file out of this?

The intro for TrueCrypt in Wikipedia says :
Quote:
It can create a virtual encrypted disk within a file or encrypt a partition or (under MS Windows except Windows 2000) the entire storage device (pre-boot authentication).

So only on Windows can you crypt the entire device.

You apparently should create a partition, make it encrypted, then format as ntfs (on Linux you can use mkntfs), then mount. Problems have been reported with older versions of ntfs-3g, they should be fixed in recent versions.

Regards

Jean-Pierre


Tue Jan 25, 2011 10:16
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Joined: Tue Jan 25, 2011 02:43
Posts: 3
Post Re: Create TrueCrupt NTFS on CentOS
Quote:
You apparently should create a partition, make it encrypted, then format as ntfs (on Linux you can use mkntfs), then mount. Problems have been reported with older versions of ntfs-3g, they should be fixed in recent versions.


I think I have a problem with my installation. The ntfs-3g I have is:

fuse-ntfs-3g-2010.10.2-1.el5.rf

which I got from an rpm. I do not have mkntfs. I now
see that I can solve this with:

yum install ntfsprogs

Should I first uninstall the fuse version, or should I
install ntfsprogs on top of the fuse software?

Thanks again,
Mike.


Tue Jan 25, 2011 16:09
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NTFS-3G Lead Developer

Joined: Tue Sep 04, 2007 17:22
Posts: 1286
Post Re: Create TrueCrupt NTFS on CentOS
Hi,

Quote:
Should I first uninstall the fuse version, or should I
install ntfsprogs on top of the fuse software?

ntfsprogs and ntfs-3g should not interfere with each other, you may install them in any order.

Regards

Jean-Pierre


Tue Jan 25, 2011 17:45
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Joined: Tue Jan 25, 2011 02:43
Posts: 3
Post Re: Create TrueCrupt NTFS on CentOS
I must be doing something wrong. After creating the volume on
the device /dev/sdg1, I then ran:

mkntfs --fast /dev/sdg1

When I tried to log on, I got bad password or bad keyfile
or not a TrueCrypt volume.

Actually, I am not suprised. Doesn't the mkntfs destroy the
TrueCrypt structure? I also tried:

truecrypt /dev/sdg1 --filesystem=none
mkntfs --fast /dev/sdg1


Tue Jan 25, 2011 21:50
Profile
NTFS-3G Lead Developer

Joined: Tue Sep 04, 2007 17:22
Posts: 1286
Post Re: Create TrueCrupt NTFS on CentOS
Hi,

Quote:
mkntfs --fast /dev/sdg1

You should probably not use /dev/sdg1 directly, but use some loopback device /dev/loopx (see for instance http://ubuntuforums.org/showthread.php?t=918684 adapting for ntfs instead of ext3)

Quote:
truecrypt /dev/sdg1 --filesystem=none
mkntfs --fast /dev/sdg1

You should probably define ntfs as the file system.

There must also be a forum with more experienced users of TrueCrypt...

Regards

Jean-Pierre


Tue Jan 25, 2011 22:52
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