Public bug reported:
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
** Affects: debian-installer (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dmraid lvm precise
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https://bugs.launchpad.net/bugs/961847
Title:
installer cannot start 'fakeraid' devices that need dm-mirror or dm-
raid modules
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