Bug#397872: debian-installer: Encryption on top of software RAID broken in daily build

[Mike Paul <mike@wyzardry.net>]

Package: debian-installer
Severity: normal

Steps to reproduce:

  * Boot D-I and select manual partitioning.
  * Create and activate a software RAID array.
  * Choose "Use as: physical volume for encryption" for the array.
  * Activate the encrypted volume.

Problem description:

  The partitioner treats the resulting encrypted volume like a raw hard
  drive -- it wants to put a partition table on it, and there's no way
  to use it directly as e.g. swapspace or a physical volume for LVM.

  A clearer indication that something is wrong:  highlight the RAID
  array which is being used as the "physical volume for encryption" and
  press Enter.  Rather than alerting the user that it can't be modified
  because it's in use by the encrypted volume, its properties page
  opens, and it shows "Use as: do not use".

  I observed this problem in the November 9 daily build.  The beta3
  installer doesn't have this problem, and works as expected -- I
  successfully set up a system using LVM on dm-crypt on RAID using
  beta3.

-- System Information:
Debian Release: 4.0
  APT prefers unstable
  APT policy: (990, 'unstable'), (800, 'stable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)