[Bug 607698] Re: karmic to lucid upgrade: hardware RAID array disappeared

[Daniel Hartwig]

Not an issue with aptitude; more likely user broke their own system
configuration.


** Package changed: aptitude (Ubuntu) => ubuntu

** Changed in: ubuntu
       Status: New => Incomplete

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Title:
  karmic to lucid upgrade: hardware RAID array disappeared

Status in Ubuntu:
  Incomplete

Bug description:
  I had a 64bit server based on Ubuntu 9.10.
  There is a SATA flash drive. It has three partitions (an NTFS with Windows on it - never used; just in case), an ext4 partition containing the system itself (ext4), and the swap. The system partition used to be /dev/sda1.
  Then, there is a RAID array containing the backups. The array consists of eight 1.5TB disks on an Adaptec 51645 card, all configured as a RAID 6 array; formatted as a single ext4 partition. This used to be /dev/sdb1.

  It's been a while since Lucid has been released, so I decided to upgrade.
  I used these commands:
  sudo aptitude install update-manager-core
  sudo do-release-upgrade -d

  At some point I was asked to replace a configuration file - I chose to replace it with the new version.
  At the Grub2 setup, I marked the first disk and all its partitions.
  I saw a warning on the console about installing Grub on partitions being a bad idea, but it went away quickly, so I could not make a proper note of it.
  Other than that, I got no errors and everything went normal.

  After reboot, the system works, the services are running, but instead
  of the RAID array, the system partition was mounted - I guess because
  /dev/sda1 (the ext4 partition containing the system) became /dev/sdb1
  - and the RAID array is not visible at all.

  2.6.32-23-server

  ~$ lsb_release -rd
  Description:    Ubuntu 10.04 LTS
  Release:        10.04

  ~$  df
  Filesystem           1K-blocks      Used Available Use% Mounted on
  /dev/sdb1              7692876   1592356   5709744  22% /
  none                    893684       228    893456   1% /dev
  none                    898112         0    898112   0% /dev/shm
  tmpfs                   898112         0    898112   0% /tmp
  none                    898112       248    897864   1% /var/run
  none                    898112         0    898112   0% /var/lock
  none                    898112         0    898112   0% /lib/init/rw

  I attached /etc/fstab (just in case). Note that the RAID6 mount is
  commented out for now.

  I found similar problem reports on lauchpad, but I could not relate my problem to any of those completely, so I decided to report it.
  I guess it will take a while to fix it, so my immediate question is: how can I make the RAID array visible again?
  Since I have no GUI (not even a monitor so I can's see pre-boot msges), so I would appreciate instructions usable via SSH console.
  Thank you.

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