[Bug 550557] [NEW] Cannot boot after alternate install using mdadm + lvm: "Gave up waiting for root device"

[Jason Gerard DeRose]

Public bug reported:

Binary package hint: initramfs-tools

I did an install using the 2010-03-26 lucid-alternate-amd64.iso daily
inside a KVM/libvirt virtual machine.  I created a VM with 4 virtual
disks (8GB in size).  Each disk was partitioned into one 500M partition
and a second partition taking the remaining space.  I put /boot and
/dev/vda1.  I assembled /dev/vd[abcd]2 into a mdadm RAID10 array, and
then used LVM to split /dev/md0 into a logical volume for /, and another
for /home/.

After the install completed, booting into the VM fails with a "Gave up
waiting for root device" message, and I'm dropped into a BussyBox shell.
>From BusyBox I can see that the mdadm array is being started correctly,
but that LVM is not.

To file this bug report, I attached the lucid-desktop-amd64.iso daily to
my VM and booted.  From the live CD I installed mdadm and lvm2, verified
that LVM could be started correctly.  So this seems to be a problem in
how the initramfs image is being created, not a problem with LVM.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: initramfs-tools 0.92bubuntu71 [modified: usr/sbin/update-initramfs]
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-17-generic x86_64
Architecture: amd64
Date: Sun Mar 28 22:43:50 2010
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100328)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: initramfs-tools

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

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Cannot boot after alternate install using mdadm + lvm: "Gave up waiting for root device"
https://bugs.launchpad.net/bugs/550557
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