[Bug 888782] Re: "cryptsetup -c aes-xts-plain -s 512 luksFormat" not working in Xubuntu 11.10

[Nicolas]

when playing around to get behind this error i found out what is causing
this:

If the partition that cryptsetup is trying to encrypt is currently mounted the above error gets produced, if its not mounted it works.
The side-effect when doing this over a mounted partition is that the partition becomes unusable. For example, gparted shows it as luks-crypt. While the command "cryptsetup luksOpen" asks for a password but does not accept the right password.
Trying then in gparted to delete the partition and create a new partition produces errors in gparted, had to pull the USB Stick out and in 2-3 times to get it working again...

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https://bugs.launchpad.net/bugs/888782

Title:
  "cryptsetup -c aes-xts-plain -s 512 luksFormat" not working in Xubuntu
  11.10

Status in “cryptsetup” package in Ubuntu:
  New

Bug description:
  Running "cryptsetup -c aes-xts-plain -s 512 luksFormat /dev/sdd1" on
  an external USB Storage (tried with HDD and USB Stick) in Xubuntu
  11.10 (did not try out Ubuntu or Kubuntu) gives the following error
  (encryption with aes is definitly working, whole system is encrypted
  with it)

  WARNING!
  ========
  This will overwrite data on /dev/sdd1 irrevocably.

  Are you sure? (Type uppercase yes): YES
  Enter LUKS passphrase:
  Verify passphrase:
  device-mapper: reload ioctl failed: Invalid argument
  Failed to setup dm-crypt key mapping for device /dev/sdd1.
  Check that kernel supports aes-xts-plain cipher (check syslog for more info).

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: cryptsetup 2:1.1.3-4ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Thu Nov 10 23:16:08 2011
  InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
  ProcEnviron:
   LANGUAGE=de_AT:de
   PATH=(custom, no user)
   LANG=de_AT.UTF-8
   SHELL=/bin/bash
  SourcePackage: cryptsetup
  UpgradeStatus: No upgrade log present (probably fresh install)
  crypttab: sda2_crypt UUID=cb9d3519-bbfd-4931-b3f7-44bef7f8820a none luks

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