[Bug 490917] Re: initrd on Karmic does not support multiple encrypted LVM physical volumes.

[Roger Binns]

This bug is still present and another scenario is btrfs.  cryptroot is
written under the assumption there is exactly one device that needs to
be decrypted for root to be mounted, which can be very wrong for btrfs.

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https://bugs.launchpad.net/bugs/490917

Title:
  initrd on Karmic does not support multiple encrypted LVM physical
  volumes.

Status in cryptsetup:
  Invalid
Status in “cryptsetup” package in Ubuntu:
  Invalid

Bug description:
  Ubuntu offers to install the rootfs into an encrypted LVM physical
  volume (PV).

  Adding a second encrypted PV to the volume group that contains the
  root filesystem makes the initrd drop into the busybox shell.

  doing the cryptsetup, lvm pvscan and lvm vgchange -ay manually allows
  the system to continue to boot.

  (Ideally the initrd should try to use the entered passphrase on all
  candidates, that would allow to extend the VG without having to enter
  multiple passphrases on each boot, but even entering the passphrases
  manually for each device is better then dropping into the sh and
  entering the commands manually.)

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