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

[Dmitrijs Ledkovs]

The current design is:
* if a disk is really not present and the array is truly degraded, we should not boot unless boot_degraded is true

* if disks are actually present and healthy, yet the array is detected
as degraded => please file a new bug about your case, it should be
fixed.

The reason is that there is disagreement whether it is safe to boot in
degraded mode automatically, because currently we have no default ways
of notifying the administrator that raid is degraded.

There is dataloss potential: boot once degraded of sda, another time of
sdb. Boot with both => syncing can lead to data loss.

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https://bugs.launchpad.net/bugs/872220

Title:
  Fails to boot when there's problems with softraid

Status in “mdadm” package in Ubuntu:
  Triaged

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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