[Bug 961847] Re: installer cannot start 'fakeraid' devices that need dm-mirror or dm-raid modules

[Denis Kozlov]

I am also experiencing this issue while trying to install Ubuntu 12.04
on Intel DH67BL motherboard with RAID-1 configuration.

I have tried several different versions and builds of Ubuntu 12.04 and they all suffer from this issue:
ubuntu-12.04-alpha2-server-amd64.iso
ubuntu-12.04-beta1-server-amd64.iso
precise-server-amd64.iso @ 2012-03-20
precise-server-amd64.iso @ 2012-03-22

In all cases installer does not report any problems, but syslog contains the following:
disk-detect: ERROR: device-mapper: target type "mirror" is not in the kernel

** Tags added: mirror raid

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Title:
  installer cannot start 'fakeraid' devices that need dm-mirror or dm-
  raid modules

Status in “debian-installer” package in Ubuntu:
  New

Bug description:
  This is known to affect the Ubuntu Server Daily Build of Ubuntu 12.04,
  as of March 21, 2012.

  The kernel modules for 'dm-mirror' and 'dm-raid' are missing from the
  Ubuntu Server x86_64 CDROM's initrd, which prevent the installer's
  dmraid setup from starting (for example NVidia and Silicon Image ATA
  fakeraid controllers that are set up for mirrored operation).

  No error is reported to user that the dmraid was not properly
  initialized - it silently fails, and presents the individual drives of
  the mirror for partitioning.

  Compounding this issue, for upgrades of systems that are running lvm2
  on top of dmraid mirrors, the lvm2 'vgchange -a y' *does* occur, which
  then leads the installer to perform the installation on only half of
  the drives in the raid set (assuming that they are in the LVM volume
  groups).

  Again, no error or warning is presented to the user.

  Curiously, at least on the Silicon Image software raid, this does not
  break the raid set and start a rebuild.

  If dmraid is later installed on the system, the newly generated
  system's initrd will allow the raid to come up in a very strange,
  broken manner that rapidly leads to filesystem corruption, and an
  unusable installation.

  Also: bug data attached to this report is from another system, that
  does not have this issue (no dmraid).  Also, is 'debian-installer' the
  correct package to use when reporting problems with the ISO installer
  and initrd?

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: debian-installer (not installed)
  ProcVersionSignature: Ubuntu 3.2.0-19.31-generic 3.2.12
  Uname: Linux 3.2.0-19-generic x86_64
  ApportVersion: 1.94.1-0ubuntu2
  Architecture: amd64
  Date: Wed Mar 21 22:36:02 2012
  MachineType: LENOVO 64608VU
  MemoryUsage:
   total       used       free     shared    buffers     cached
   Mem:       2017484    1825100     192384          0      61088     834044
   -/+ buffers/cache:     929968    1087516
   Swap:      2097148          0    2097148
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-19-generic root=/dev/mapper/volume-ubuntu ro rootdelay=10 processor.ignore_ppc=1
  SourcePackage: debian-installer
  UpgradeStatus: Upgraded to precise on 2012-01-26 (55 days ago)
  dmi.bios.date: 04/25/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETB7WW (2.17 )
  dmi.board.name: 64608VU
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7LETB7WW(2.17):bd04/25/2008:svnLENOVO:pn64608VU:pvrThinkPadT61p:rvnLENOVO:rn64608VU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 64608VU
  dmi.product.version: ThinkPad T61p
  dmi.sys.vendor: LENOVO

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