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? If not, the installer should install all the modules at least for the defaults when you install "cryptsetup". They should then be loaded on-demand I think, but I have not used a module-kernel in a long, long time. > In general, how do I check if all the required crypto modules are supported > before running any cryptsetup commands? Just run it and see whether it complains. Arno -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@xxxxxxxxxxx GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision. -- Bertrand Russell _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
