[Bug 1077650] Re: booting from raid in degraded mode ends in endless loop

[Dominik Zalewski]

I was using this feature successfuly with 11.04 alternate. Right now I
decided to upgrade to 12.04 LTS. It was frustrating to see that this is
not working. I've then checked 12.10 and it's also not working.'

There was some other bug report

https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/728435

that stated that the problem was in mdadm package (not initramfs-tools).
And it has been fixed. But apparently this is not the case.

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https://bugs.launchpad.net/bugs/1077650

Title:
  booting from raid in degraded mode ends in endless loop

Status in “initramfs-tools” package in Ubuntu:
  Confirmed

Bug description:
  Its basically the same as reported here:

  http://efreedom.com/Question/6-103895/Can-Boot-Degraded-Mdadm-Array

  So I just installed a new system, which is supposed to get later on an
  additional disk. For now I created md raid1 devices with one disk
  missing. To get ubuntu booting at all without complaining about a
  missing disk I already added "bootdegraded=yes" to the kernel command
  line. And now it ends in an endless loop of

  unused devices: <none>
  Attempting to start the RAID in degraded mode...
  mdadm: CREATE group disk not found
  Started the RAID in degraded mode.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: initramfs-tools 0.103ubuntu0.2
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: amd64
  Date: Sun Nov 11 16:26:55 2012
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: initramfs-tools
  UpgradeStatus: Upgraded to quantal on 2012-01-08 (308 days ago)

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