1
vote
1answer
350 views

How do you repair a Ubuntu 14.04 RAID-LVM-DM-CRYPT-LUKS Physical to Virtual system that won't boot?

I can't get a Ubuntu 14.04 Virtual server to boot correctly. It's recently been cloned "dd if=/dev/sda of=vmimage" The Physical has a RAID1-LVM-DMCRYPT-LUKS configuration, The boot sequence aborts and ...
0
votes
1answer
833 views

Recover data from ubuntu encrypted drive (LUKS)

I had a Host with Ubuntu 12.10 installed, and the entire harddrive was encrypted (with LUKS it appears), I remember the passphrase, but I have trouble to "open it". I am now on a beta version of ...
1
vote
2answers
3k views

Ubuntu 13.10 - How to disable LVM and cryptsetup? cryptsetup: evms_activate is not available

I am trying to remove whole drive encryption from my Ubuntu installation. I've run Ubuntu from Live CD, mounted crypt partition and copied it to another partition /dev/sda3. sudo cryptsetup luksOpen ...
2
votes
1answer
294 views

Possible to set encryption block size in LUKS?

When I do a benchmark test modprobe tcrypt sec=2 mode=200 I see that different encryption block sizes are used test 0 (128 bit key, 16 byte blocks): 4460604 operations in 2 seconds (71369664 ...
1
vote
1answer
313 views

Does cryptsetup “Plain mode” store the hashed passphrase in each sector?

When I read the manpage for cryptsetup on Linux about "Plain mode" it says: Plain dm-crypt encrypts the device sector-by-sector with a single, non-salted hash of the passphrase. and the -c ...
3
votes
1answer
690 views

Why is mkfs overwriting the LUKS encryption header on LVM on RAID partitions on Ubuntu 12.04?

I'm trying to setup a couple of LUKS-encrypted partitions to be mounted after boot-time on a new Ubuntu server which was installed with LVM on top of software RAID. After running cryptsetup ...
6
votes
4answers
834 views

On Ubuntu 11.10, is it possible to decrypt 2 hard disks encrypted with LUKS / LVM by entering only one passphrase at boot?

here the configuration I have : - 2 hard drives, - first one is encrypted using LUKS and LVM. I'd like to add in the volume group encrypted a second hard drive. I have successfully installed it and ...