I have a virtual machine with Ubuntu server with an encrypted LVM.

I set up a virtual drive using imdisk to access its virtual hard drive without running the virtual machine, but I can't find any way to access this encrypted lvm in Windows.

Is there any Windows program that allows mounting encrypted LVMs?

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    I am not sure about the LVM layer, but the dm-crypt seem to be usable using FreeOTFE. See en.wikipedia.org/wiki/Dm-crypt – Zoredache May 2 '12 at 21:50
  • Only if the underlying filesystem is NTFS. – LawrenceC May 2 '12 at 22:31
  • FreeOTFE supports dm-crypt/LUKS. I installed it but now the problem is it can only open a file (no .vdi container compatible) or a partition on my physical disk, and I only have the virtual drive created by Imdisk. Any ideas? – NotGaeL May 3 '12 at 10:22
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    Have you considered just rebuilding the virtual machine and setting up the system to not use LVM? – Zoredache May 10 '12 at 17:31
  • I've considered it and I've done it. I disabled LVM encryption on the volume inside the .vdi container to avoid redundant encryption and moved the .vdi to a TrueCrypt container. Seems the best alternative so far, but I still would like to know if there is a solution to allow me mount LVM LUKS encrypted volumes inside a variable size .vdi containers. – NotGaeL May 12 '12 at 10:04

From wikipedia dm-crypt :

dm-crypt and LUKS encrypted disks can be accessed and used under MS Windows using FreeOTFE, provided that the filesystem used is supported by Windows (e.g. FAT/FAT32/NTFS).

Encrypted Ext2, Ext3 and Ext4 filesystems are supported by use of Ext2Fsd (all ext* versions) or Ext2 Installable File System for Windows (ext2 and ext3 only) and with FreeOTFE.

See this article for how to use these products :
Mounting LUKS / dm-crypt Partitions in Microsoft Windows.

The described method works on a partition, so I wonder if it wouldn't also work on an lmdisk partition.

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  • Sure about Explore2fs LVM2 support using this Virtual Volumes beta. Unfortunately it does not support dm-crypt/LUKS encryption, neither vdi virtual HDD container access or access to the virtual drive where imdisk mounts this vdi container, so it's nowhere close to a solution. Thanks anyway. – NotGaeL May 6 '12 at 16:43
  • dm-crypt does throw a spanner into the machinery. I rewrote my answer. – harrymc May 6 '12 at 17:14
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    all of that I've already figured it out, but how can I get to see the virtual hardrive (VDI container) partitions on the list the same way I see the physical hard drive ones? I tried Imdisk with no luck (it's a variable size container and it only works with fixed sized VDI containers). I guess I need a virtual device driver for vdi containers or something like that... – NotGaeL May 6 '12 at 18:45
  • Do you mean to say that the problem is that FreeOTFE refuses to use the imdisk drive ? – harrymc May 6 '12 at 19:51
  • Another question : Might using TrueCrypt instead of dm-crypt make the job easier? Hmmm, you may run into the same problem with variable vdi. You might need to give up on the variable part. – harrymc May 6 '12 at 20:08

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