[Bug 872220] Re: Fails to boot when there's problems with softraid

Simon Bazley 872220 at bugs.launchpad.net
Wed Sep 26 16:04:27 UTC 2012

I thought it helpful to link to
https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/917250 which seems
related, although pertains specifically to racing conditions leading to
disks being erroneously degraded rather than legitimately degraded, but
irrelevant disk causing inappropriate boot failures.

It's stating the obvious but I found I could boot normally with degraded
softraid disks by uninstalling mdadm, which removes the mdadm scripts
from the /usr/share/initramfs-tools folder and the initrd image.

I'll try to find a fix for my problem, by hacking about with the mdadm
scripts added to initramfs-tools, but suspect this issue is best tied to
the mdadm package, where said scripts originate.

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  Fails to boot when there's problems with softraid

Status in “mdadm” package in Ubuntu:

Bug description:
  Ubuntu 11.10 has a new feature that it warns you while booting if
  there's a program with the softraid.

  It tells you that a hard disk in the softraid is missing, then asks,
  on the console:

  Continue to boot? y/N

  But it ignores all keypresses. After 5 seconds or so it then times
  out, falls to the default "N" option, and dumps you to a emergency
  bash prompt, with no indication on how to proceed.

  The feature is a good idea, but not in the current broken state.

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