On 21.10.2012, Tvrtko Ursulin wrote:
> # cryptsetup --key-file=- luksOpen /luks.file target
> Enter passphrase:
> device-mapper: reload ioctl on failed: No such file or directory
> Failed to setup dm-crypt key mapping for device /dev/loop0.
> Check that kernel supports aes-cbc-essiv:sha256 cipher (check syslog for
> more info).
I bet you miss some of the neccessary crypto-stuff in your .config.
I tested your case and have no problems:
[root@wildsau htd]# uname -a
Linux wildsau.fritha.org 3.6.3-rc1 #1 SMP PREEMPT Sat Oct 20 18:57:04 CEST 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@wildsau htd]# cryptsetup luksDump /dev/loop0
LUKS header information for /dev/loop0
Version: 1
Cipher name: aes
Cipher mode: cbc-essiv:sha256
Hash spec: sha1
Payload offset: 4096
MK bits: 256
MK digest: 0e 1b a2 0a c3 db f0 16 27 df fb 2a ea e8 2e a9 15 ec f9 6e
MK salt: c6 56 f1 f8 38 4a 69 81 42 91 ce e1 3c b4 36 b6
05 9c c1 ee 1a a2 21 ce ec a8 ea f9 84 cf 3e 28
MK iterations: 42125
UUID: 5b894353-1b52-40fa-bc59-4ce5b3795894
Key Slot 0: ENABLED
Iterations: 168948
Salt: 77 f7 f5 1b 7e 8c ea 18 1f de fd 1c 9a fd 96 9d
f3 6e 76 9f 9d 5f 97 b2 72 9e 83 ff 59 13 1e a9
Key material offset: 8
AF stripes: 4000
Key Slot 1: DISABLED
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