[Bug 931929] Re: Installation on RAID or LVM fails to boot

[Benjamin Drung]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested
in discussing it anymore. But if you are then please upgrade to the
latest Ubuntu version and re-test. If you then find the bug is still
present in the newer Ubuntu version, please add a comment here telling
us which new version it is in.

** Changed in: initramfs-tools (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/931929

Title:
  Installation on RAID or LVM fails to boot

Status in dmraid:
  New
Status in initramfs-tools:
  Confirmed
Status in udev:
  New
Status in initramfs-tools package in Ubuntu:
  Incomplete

Bug description:
  Booting from RAID is often broken after upgrades or fresh
  installations of Ubuntu.

  initramfs is not activating RAID devices.

  Steps to reproduce:
  1. Upgrade or Install Ubuntu on a RAID
  2. Reboot
  3. Observe failure to find root drive and drop to busybox

  To work around this, when given the busybox prompt enter:

  dmraid -ay

  Verify that all of your raid devices are initialized, then enter:

  exit

  Booting should then continue.

  See comment #2 for a persistent (rebootable) workaround.

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