[Bug 1253460] [NEW] dmraid is not installed for HW RAID+LVM setup

[Maarten Bezemer]

Public bug reported:

I am currently trying LVM. My motherboard has hardware RAID controller,
which combines two harddisks (RAID0 I believe, but that does not really
matter)

After circumventing bug 1038522, the installer finished, but when I
booted into the freshly installed system, some LVM partitions were not
available. The partition on which the OS is installed on my new SSD
(which is not part of the RAID array), so that is the reason I guess
that the OS was able to partially boot. The missing LVM partitions are
stored on the RAID array.

After some Internet searching I noticed that the dmraid package was
missing. After installing the missing package (and dependencies) using a
Live CD, the mounting problems vanished and the new installation (from
which I am writing this report) seems to be working properly.

Earlier (when not using LVM) this was not a problem.
I guess the LVM 'masks' the underlying RAID, so the installer did not notice the RAID configuration (or thinks it is not used).
Resulting the dmraid package not being installed...

I am using the KUbuntu installer as provided on the KUbuntu Live CD
13.10. I do not know whether this is a KUbuntu specific problem, or
whether it also occurs with the Ubuntu installer.

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

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https://bugs.launchpad.net/bugs/1253460

Title:
  dmraid is not installed for HW RAID+LVM setup

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  I am currently trying LVM. My motherboard has hardware RAID
  controller, which combines two harddisks (RAID0 I believe, but that
  does not really matter)

  After circumventing bug 1038522, the installer finished, but when I
  booted into the freshly installed system, some LVM partitions were not
  available. The partition on which the OS is installed on my new SSD
  (which is not part of the RAID array), so that is the reason I guess
  that the OS was able to partially boot. The missing LVM partitions are
  stored on the RAID array.

  After some Internet searching I noticed that the dmraid package was
  missing. After installing the missing package (and dependencies) using
  a Live CD, the mounting problems vanished and the new installation
  (from which I am writing this report) seems to be working properly.

  Earlier (when not using LVM) this was not a problem.
  I guess the LVM 'masks' the underlying RAID, so the installer did not notice the RAID configuration (or thinks it is not used).
  Resulting the dmraid package not being installed...

  I am using the KUbuntu installer as provided on the KUbuntu Live CD
  13.10. I do not know whether this is a KUbuntu specific problem, or
  whether it also occurs with the Ubuntu installer.

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