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:
bash-4.1# cat /proc/crypto
name : stdrng
driver : krng
module : kernel
priority : 200
refcnt : 1
selftest : passed
type : rng
seedsize : 0
name : crc32c
driver : crc32c-generic
module : kernel
priority : 100
refcnt : 2
selftest : passed
type : shash
blocksize : 1
digestsize : 4
name : sha1
driver : sha1-generic
module : kernel
priority : 0
refcnt : 1
selftest : passed
type : shash
blocksize : 64
digestsize : 20
name : md5
driver : md5-generic
module : kernel
priority : 0
refcnt : 1
selftest : passed
type : shash
blocksize : 64
digestsize : 1
But I am not quite sure which package is missing here. Is it something more general like "yum install aes"?
In general, how do I check if all the required crypto modules are supported before running any cryptsetup commands?
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