[Bug 529502] Re: cryptsetup luksClose fails with "busy"

[Ed Guenter]

Fascinating. I just had to use luksOpen to fix my freshly installed
14.04 ... and I ran into the very same problem: when going for
luksClose; I get the "resource busy" error (running the command from a
USB stick which contains ubuntu 14.04.2).

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Title:
  cryptsetup luksClose fails with "busy"

Status in cryptsetup package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: nautilus

  Encrypted LUKS volume lives in /dev/sdb1 (first partition in external
  USB HDD)

  Steps:

  1) Plug USB HDD
  2) Choose Places -> Encrypted volume
  3) Type password in dialog

  Volume is sucesfully mounted and nautilus window is open on mount
  point

  4) Choose File -> Umount

  Expected: partition is unmounted and encryted block device is removed
  from /dev/mapper

  Result: volume is unmouted, cryptsetup fails to remove encrypted block device in /dev/mapper with error:
  Error locking device: cryptsetup exited with exit code 240: Device udisks-luks-uuid-[...] is busy.

  Manually running cryptsetup luksClose udisks-luks-uuid-[...]
  afterwards works as expected.

  ProblemType: Bug
  Architecture: amd64
  Date: Sun Feb 28 16:16:53 2010
  DistroRelease: Ubuntu 10.04
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100219)
  Package: nautilus 1:2.29.91-0ubuntu1
  ProcEnviron:
   LANGUAGE=es_ES.utf8
   PATH=(custom, user)
   LANG=es_ES.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
  SourcePackage: nautilus
  Uname: Linux 2.6.32-14-generic x86_64

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