I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this

Can you test the following kernels and post back? We are looking for the
first kernel version that exhibits this bug:

v3.8.13: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13-raring/
v3.8.13.1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.1-raring/
v3.8.13.2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.2-raring/
v3.8.13.3: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.3-raring/
v3.8.13.4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.4-raring/
v3.8.13.5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.5-raring/

You don't have to test every kernel, just up until the kernel that first
has this bug.

Thanks in advance!

** Tags added: kernel-da-key regression-update

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: performing-bisect

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  encrypted drive can't boot

Status in “linux” package in Ubuntu:

Bug description:
  Steps to reproduce:
  - install new Ubuntu (or Xubuntu) 13.04 from CD in VM on external hard drive 
mounted as /dev/sda , having selected the option to encrypt the drive.
  - reboot when install is finished, then running on a physical machine with 
the external hard drive mounted as /dev/sdb  (this setup has worked for months 
before today)
  - enter the encryption passphrase when asked (early in the boot process)
  - login as the one user set up during installation
  - install the ca. 109 MB of updates, including linux-image-3.8.0-29
  - reboot when the update process has finished
  - the graphic boot screen shows up and the waiting wheel starts turning, as 
usual, before the disk encryption passphrase is being asked for

  Observed behaviour: after ca. 3-5 minutes, with the wheel turning and
  no passphrase prompt, the system falls into a BusyBox (mini shell)
  with initramfs prompt.

  Expected behaviour: after max. 1-2 minutes, the prompt to enter the
  disk encryption passphrase should appear.

  Workaround: while still in grub, enter the advanced options and boot
  kernel version 3.8.0-19, which shows expected behaviour.

  The bug seems to appear with kernel version 3.8.0-29; kernel version
  3.8.0-19 works.

  Both vanilla Ubuntu 13.04 and Xubuntu 13.04 are affected. The
  workaround works for both Ubuntu variants.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
  Uname: Linux 3.8.0-19-generic i686
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: i386
   /dev/snd/controlC1:  martin     2055 F.... pulseaudio
   /dev/snd/controlC0:  martin     2055 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Date: Wed Aug 21 13:16:59 2013
  HibernationDevice: RESUME=UUID=6ad5cfb1-aa0f-40f6-b5a5-9cd9f3a2ebc1
  InstallationDate: Installed on 2013-08-21 (0 days ago)
  InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release i386 (20130423.1)
   lo        no wireless extensions.
   eth1      no wireless extensions.
  MarkForUpload: True
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-19-generic 
root=/dev/mapper/xubuntu--vg-root ro quiet splash
   linux-restricted-modules-3.8.0-19-generic N/A
   linux-backports-modules-3.8.0-19-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/10/2009
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: CBQ4510H.86A.0111.2009.1210.1144
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DQ45CB
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAE30148-301
  dmi.chassis.type: 3
  dmi.sys.vendor: wortmann

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