[dm-crypt] RHEL6 crypto support

Arno Wagner arno at wagner.name
Fri Jan 18 20:44:19 CET 2013


On Fri, Jan 18, 2013 at 08:37:59PM +0100, Milan Broz wrote:
> On 01/18/2013 08:33 PM, Arno Wagner wrote:
> > On Fri, Jan 18, 2013 at 11:16:42AM -0800, David Li wrote:
> >> Here is a newbie question.
> >>
> >> I encountered an error at luksFormat on a loop device:
> >>
> >> device-mapper: reload ioctl failed: Invalid argument
> >> 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).
> >>
> >> So I guesss my RHEL6 doesn't have the proper crypto module installed. This
> >> is a dump of /proc/crypto:
> > [....]
> >> But I am not quite sure which package is missing here.  Is it something
> >> more general like "yum install aes"?
> > 
> > Is this a self-compiled cryptsetup?
> 
> I would say it is self-compiled kernel :)

;-)

In that case my advice is to just compile everything crypto 
statically in. I have done that for quite some time now,
never any problems.

Arno
 
> RHEL6 default kernel will autoload crypto modules as requested.
> (And upstream cryptsetup works there too, it is one of the testing platform)
 
> What's the kernel and cryptsetup version?
> 
> Milan
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-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno at wagner.name
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----
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are stupid, and those with any imagination and understanding are filled
with doubt and indecision. -- Bertrand Russell


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