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

[François Marier]

My problem (encrypted RAID1 drive refusing to boot when degraded) was
fixed by adding a new initramfs boot script to start the RAID array
before cryptsetup runs:

http://feeding.cloud.geek.nz/posts/the-perils-of-raid-and-full-disk-
encryption-on-ubuntu/

That's on 12.04.3.

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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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