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Old Dec 25, 2012, 02:19 AM   #1
d4m1r
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Exclamation TrueCrypt Error?

Hi guys, I have a 500GB USB external HDD that I use for backups. There is a single partition on the HDD and it is encrypted via TrueCrypt. TrueCrypt has a client for Windows, OS X, and Linux. I have been able to successfully mount and backup from both my Windows and Linux PC but NOT my OS X MBP. TrueCrypt installs and loads up fine but when I try to mount the volume, it gives me the following error:


Truecrypt error: hdiutil: attach failed - no mountable file systems

Trying to mount it in read-only mode doesn't help either....Any ideas
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Old Dec 25, 2012, 05:37 AM   #2
switon
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RE: hdiutil...

Hi,

The hdiutil error means that the OS did not recognize your volume partition in order to mount its partition. This can sometimes be remedied simply by adding a small second partition to the volume that can be mounted by the OS. It sounds like you are using the "partition" TrueCrypt strategy and not the "container file" method, so I would suggest adding a second (unencrypted) partition that can be mounted by Mac OS. This may solve the hdiutil error problem.

Good luck,
Switon
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Old Dec 25, 2012, 06:23 PM   #3
d4m1r
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Thanks for the reply but it seems like the partition got corrupted somehow...It was working just fine on Windows and Linux the other day but after getting all these errors, I wanted to double check and boom...Didn't work under those either. I re-formated the drive (encrypted NTFS partition) and now it is working under Windows 7, Ubuntu 12.04, and OS X 10.8

FYI, I originally was using Paragon for NTFS, then OS X Fuse + NTFS-3G, but am now using Tuxera NTFS because it natively supports Mountain Lion and has been error free for me so far...Even when it comes to TrueCrypt!
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Old Dec 26, 2012, 11:21 AM   #4
switon
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RE: Thanks for the info...

Quote:
Originally Posted by d4m1r View Post
FYI, I originally was using Paragon for NTFS, then OS X Fuse + NTFS-3G, but am now using Tuxera NTFS because it natively supports Mountain Lion and has been error free for me so far...Even when it comes to TrueCrypt!
Hi d4m1r,

So, I take it that you would suggest using Tuxera over Paragon? I've read similar recommendations elsewhere.

Thanks, and glad you got it working,
Switon
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Old Dec 26, 2012, 02:57 PM   #5
d4m1r
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Quote:
Originally Posted by switon View Post
Hi d4m1r,

So, I take it that you would suggest using Tuxera over Paragon? I've read similar recommendations elsewhere.

Thanks, and glad you got it working,
Switon
Yes, atleast for Mountain Lion I would....Paragon used to be the staple OS X NTFS solution but they have been slow to act on 10.8.

While it isn't free, Paragon is the latest and greatest NTFS provider for OS X I'd say. Paragon NTFS is a continuation of NTFS-3G for OS X which seems to be dead?
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Old Aug 12, 2013, 05:37 AM   #6
kskop12
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Similar problem, hdiutil error on Truecrypt volume

Hi there, I'm having a similar problem related to an encrypted file volume and I'm wondering if someone here could help. I'm trying to restore a TrueCrypt volume (a 10GB container I created) from a TimeMachine backup. The most recent versions of this file does not mount - I get the above mentioned "hdiutil: attach failed - no mountable files systems" . Strangely, When I go to my OLDEST time machine back ups - from about 8 months ago, and choose the file there, it mounts fine. SO, something happened to the file along the way as it was being backed up and I can't mount the latest version of it. Does anyone have any suggestions for getting this to work? I have tried mounting it on my 10.8.4 and my 10.6.8 systems, and get the same error. I have made sure I have the latest version of MacFuse installed. I tried mounting in SafeMode and it doesn't work either.
One clue is that when I clicking the "read only" option in TrueCrypt, and checking the box for "do not mount" , it seems to load the file in True Crypt as a "hidden" file type, but of course I can't see the contents of the container anywhere because the volume is not mounted. Can anyone help here? Thanks so much - apologies in advance if I missed something obvious!
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Old Aug 19, 2013, 03:22 PM   #7
d4m1r
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^That is a totally different problem so it would probably be better if you started your own topic....

Going back to my own issue, I later figuired out it is my linux partition that is corrupting the volume (for some unknown reason). I can use the same partition (read and write) interchangabliy under both Windows and OS X without corrupting it...
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