I ran into this problem again today and found my old bug report. I downloaded the source code for cryptsetup-1.6.7, and built it manually.
Version 1.6.7 gives me a more informative error message. $ sudo ./cryptsetup -y -s 128 luksFormat /dev/sdd1 WARNING! ======== This will overwrite data on /dev/sdd1 irrevocably. Are you sure? (Type uppercase yes): YES Enter passphrase: Verify passphrase: Failed to setup dm-crypt key mapping for device /dev/sdd1. Check that kernel supports aes-xts-plain64 cipher (check syslog for more info). Key size in XTS mode must be 256 or 512 bits. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1299557 Title: cryptsetup luksFormat fails with -s <keysize> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1299557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
