dpkg-configure offers to boot when degraded, however it doesn't update the grub config to include the bootdegraded=true flag

The post-install configuration/dpkg-reconfigure mdadm offers to allow the user to boot using a degraded raid. However, it never actually updates the grub configuration to reflect this. The only work around is to manually update /etc/default/grub

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: mdadm 3.2.3-2ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CurrentDmesg: [ 165.320070] usb 5-2: USB disconnect, device number 2
Date: Wed Jul 11 17:14:06 2012
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MDadmExamine.dev.sda:
 /dev/sda:
    MBR Magic : aa55
 Partition[0] : 148246528 sectors at 2048 (type fd)
 Partition[1] : 16001024 sectors at 148248576 (type 82)
 Partition[2] : 148248576 sectors at 164249600 (type 83)
MDadmExamine.dev.sda2: Error: command ['/sbin/mdadm', '-E', '/dev/sda2'] failed with exit code 1: mdadm: No md superblock detected on /dev/sda2.
MDadmExamine.dev.sda3: Error: command ['/sbin/mdadm', '-E', '/dev/sda3'] failed with exit code 1: mdadm: No md superblock detected on /dev/sda3.
MDadmExamine.dev.sdb:
 /dev/sdb:
    MBR Magic : aa55
 Partition[0] : 148246528 sectors at 2048 (type fd)
 Partition[1] : 16001024 sectors at 148248576 (type 82)
 Partition[2] : 148248576 sectors at 164249600 (type 83)
MDadmExamine.dev.sdb2: Error: command ['/sbin/mdadm', '-E', '/dev/sdb2'] failed with exit code 1: mdadm: No md superblock detected on /dev/sdb2.
MDadmExamine.dev.sdb3: Error: command ['/sbin/mdadm', '-E', '/dev/sdb3'] failed with exit code 1: mdadm: No md superblock detected on /dev/sdb3.
MachineType: Dell Inc. OptiPlex GX620
ProcEnviron:
 LANGUAGE=en_US:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=ab9649c5-a025-41e3-83da-9758ee92363c ro bootdegraded=true splash quiet vt.handoff=7
ProcMDstat:
 Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
 md0 : active raid0 sdb1[1] sda1[0]
       148244480 blocks super 1.2 512k chunks

 unused devices: <none>
SourcePackage: mdadm
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/31/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0HH807
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd03/31/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0HH807:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex GX620
dmi.sys.vendor: Dell Inc.
etc.blkid.tab: Error: [Errno 2] No such file or directory: '/etc/blkid.tab'