[Bug 659899] Re: Degraded boot fails when using encrypted raid1 with lvm

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: debian-installer (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/659899

Title:
  Degraded boot fails when using encrypted raid1 with lvm

Status in “debian-installer” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: debian-installer

  This is probably similar or duplicate of bug #577239
  https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/577239

  I'm testing Ubuntu 10.10 Server under VirtualBox following this test case:
  http://testcases.qa.ubuntu.com/Install/ServerRAID1

  Installation, reboot and upgrade go ok, but when testing boot with
  degraded array, grub fails with:

  "-r ALERT! /dev/disk/by-uuid/[....] does not exist. Dropping to a
  shell"

  dropping to initramfs busybox prompt.

  To reproduce this bug, create a virtual machine for ubuntu guest with
  two 10Gb sata disks.

  Boot with 10.10 server i386 iso image
  Partiion as follows:

  2 500mb partitions(one for each disk) used as physical volumes for raid1, device md0
  2 partitions using all the remaining space (one for each disk) used as physical volumes for raid1, device md1

  md0 mounted as /boot formatted with ext2
  md1 as physical volume for encryption
  md1_crypt as physical volume for LVM

  3 LVM volume groups for /, /home and swap

  complete the installation with defaults, install grub on MBR of both disks, and reboot.
  System boots correctly.
  Apt-get update && upgrade, reboot, system boots correctly.
  Poweroff. Remove one of the two virtual disks from the VM, doesnt matter which one, reboot, fails with the message above.
  Poweroff. Re-add the disk to the VM, poweron. System boots normally.

  debian-installer version: 20100211ubuntu29
  mdadm version: 2.6.7.1-1ubuntu16
  cryptsetup version: 2:1.1.2-1ubuntu1

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