Problem: Failed to setup dm-crypt mapping. (yes, red the faq)

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Hi there!

I have a little problem with encrypting my HD with luks/dm-crypt..

After "cryptsetup -c aes-cbc-essiv:sha256 -y -s 256 luksFormat /dev/hdb3"
and entering the passphrase, I get this:

----
Unable to obtain sector size for /dev/hdb3
Failed to setup dm-crypt key mapping.
Check kernel for support for the aes-cbc-essiv:sha256 cipher spec and
verify that hdb3 contains at least 258 sectors.
Failed to write to key storage.
----

I worked through the luks-faq, but found no fault.
The partition, hdb3(10GB), is definitely not mounted.

Hope you can help..

Greetings,

ape!



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