[Bug 1206238] [NEW] grub2 LVM support does not handle MD raid1 style mirrored volumes, completely ignoring such volumes

[Andy Whitcroft]

Public bug reported:

grub2 LVM support handles MD raid 4.5 and 6 but not raid1.  If you make
your boot or root raid1 it is no longer able to even list the volumes.
It is therefore possible to boot your system, add a mirror, reboot and
have no system at all.  I would guess raid1 would be a degenerate case
of the mirror support that already exists.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: grub2 (not installed)
ProcVersionSignature: Ubuntu 3.10.0-1.2~unstable201306041951-generic 3.10.0-rc4
Uname: Linux 3.10.0-1-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
Date: Mon Jul 29 20:27:49 2013
EcryptfsInUse: Yes
MarkForUpload: True
SourcePackage: grub2
UpgradeStatus: Upgraded to raring on 2013-02-26 (153 days ago)

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug raring

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https://bugs.launchpad.net/bugs/1206238

Title:
  grub2 LVM support does not handle MD raid1 style mirrored volumes,
  completely ignoring such volumes

Status in “grub2” package in Ubuntu:
  New

Bug description:
  grub2 LVM support handles MD raid 4.5 and 6 but not raid1.  If you
  make your boot or root raid1 it is no longer able to even list the
  volumes.  It is therefore possible to boot your system, add a mirror,
  reboot and have no system at all.  I would guess raid1 would be a
  degenerate case of the mirror support that already exists.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 3.10.0-1.2~unstable201306041951-generic 3.10.0-rc4
  Uname: Linux 3.10.0-1-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  Date: Mon Jul 29 20:27:49 2013
  EcryptfsInUse: Yes
  MarkForUpload: True
  SourcePackage: grub2
  UpgradeStatus: Upgraded to raring on 2013-02-26 (153 days ago)

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