[Bug 251164] Re: boot impossible due to missing initramfs failure hook / event driven initramfs

[Grzegorz Saracki]

I confirm behavior described by Teemu Toivola (vergo) in Ubuntu server 12.10. After removing one (no matter which one) drive from RAID1 i got:
cryptsetup evms_activate is not available
Begin: Waiting for encrypted source device.
If Raid1 is valid (with both drives connected)  initram asks correctly for password.

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https://bugs.launchpad.net/bugs/251164

Title:
  boot impossible due to missing initramfs failure hook / event driven
  initramfs

Status in “cryptsetup” package in Ubuntu:
  Triaged
Status in “mdadm” package in Ubuntu:
  Confirmed

Bug description:
  the cryptsetup package needs proper integration into the initramfs
  failure hooks

  The system must not assume a particular layered setup or sequence of
  appearance of (hotplug/udev/crypt/md/degraded-md/lvm) devices.

  It must be able to boot with any possible combination raid, lvm, crypt
  combination that the debian-installer can produce.

  
  Description of solution in comment #15

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