[dm-crypt] ioctl missing

Milan Broz mbroz at redhat.com
Wed Aug 1 12:06:38 CEST 2012


On 08/01/2012 10:32 AM, Laurence Darby wrote:

> I've got this problem as well after upgrading to linux 3.5, while 3.0.1
> works fine, so this is probably bisectable...  The full output is:

no need to bisect, it is missing some crypto module in kernel

> [45852.267229] device-mapper: table: 252:0: crypt: Error creating IV
> [45852.267232] device-mapper: ioctl: error adding target to table

means that kernel(dmcrypt) cannot initialize some crypto primitive.

"Check that kernel supports aes-cbc-essiv:sha256 cipher" is clear,
check you have AES, CBC mode and SHA256 crypto compiled in!

(I guess sha256 is missing for some reason.)

Milan


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