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Thread: Ubuntu 12.10 Installation RAID (ICH10) Issues

  1. #1
    Join Date
    Mar 2009
    Beans
    3

    Ubuntu 12.10 Installation RAID (ICH10) Issues [SOLVED]

    Hi, so after recently getting into the Steam for Linux beta, I decided I would finally dual-boot my desktop. I've been using Ubuntu/Debian for some time on my laptop, but previous attempts to switch over to Linux on my desktop have been thwarted by the lack of default support for my RAID 5 array. My current hard drive set up is as follows:

    ICH10
    - 4 drive RAID 5 array (Data only)
    - Single drive (Windows)
    - Single drive (Intended Linux target)
    Marvell 91xx controller
    - Optical drive

    Excitingly, there is now support for Intel software raid by default in all the distributions I tried (Ubuntu 12.10, LM14, LMDE, Fedora 17 [All 64-bit]), and they all recognized and could access my RAID volume, but no longer seem to be able to recognize and utilize the individual drives. The installer did not present my Windows drive or the drive I intend to use for Linux as options, but instead only presented the RAID volume and the flash drive I was booting off of. I would greatly appreciate any suggestions anyone may have towards a solution to installing Ubuntu.

    Update: Darkod's suggestion below about removing residual metadata did the trick. I suspect it was from when I had the drives on the Marvell controller.
    Last edited by phate408; December 12th, 2012 at 01:25 AM.

  2. #2
    Join Date
    Nov 2009
    Location
    Segur De Calafell, Spain
    Beans
    11,906
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Ubuntu 12.10 Installation RAID (ICH10) Issues

    If the disk has been used in raid before, it has meta data remains. The installer ignores disks with meta data thinking they are part of raid.

    To remove meta data, you can do from live mode:
    sudo dmraid -Er /dev/sdX

    MAKE SURE YOU GET THE DISK RIGHT!!! If you use it on one of the raided disks, it will drop that disk from the array.

    If there is meta data, it will ask you for confirmation to remove it, after that the installer should work fine.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 14.04 LTS 64bit & Windows 7 Ultimate 64bit

  3. #3
    Join Date
    Jul 2008
    Location
    Maryland
    Beans
    1,537
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 12.10 Installation RAID (ICH10) Issues

    Are you proceeding directly to the install? Does the situation exist if you run the 'live cd'.
    12.10 Quantal w/grub2/Mint13 installed on raid0, Gigabyte AMD MB, AMD 64x4 CPUs at 3.2GHz, 16 GB ram, HD7770 ATI video, dual boot win7 on 64gb ssd and win8 on 1Tb SATA raid. 13.04 installed on raid0 and ssd

  4. #4
    Join Date
    Mar 2009
    Beans
    3

    Re: Ubuntu 12.10 Installation RAID (ICH10) Issues

    Quote Originally Posted by darkod View Post
    If the disk has been used in raid before, it has meta data remains. The installer ignores disks with meta data thinking they are part of raid.

    To remove meta data, you can do from live mode:
    sudo dmraid -Er /dev/sdX

    MAKE SURE YOU GET THE DISK RIGHT!!! If you use it on one of the raided disks, it will drop that disk from the array.

    If there is meta data, it will ask you for confirmation to remove it, after that the installer should work fine.
    I will try this and reply with the results.

    Quote Originally Posted by ronparent
    Are you proceeding directly to the install? Does the situation exist if you run the 'live cd'.
    I was running the installer from the live instance.

  5. #5
    Join Date
    Mar 2009
    Beans
    3

    Re: Ubuntu 12.10 Installation RAID (ICH10) Issues

    Quote Originally Posted by darkod View Post
    If the disk has been used in raid before, it has meta data remains. The installer ignores disks with meta data thinking they are part of raid.

    To remove meta data, you can do from live mode:
    sudo dmraid -Er /dev/sdX

    MAKE SURE YOU GET THE DISK RIGHT!!! If you use it on one of the raided disks, it will drop that disk from the array.

    If there is meta data, it will ask you for confirmation to remove it, after that the installer should work fine.
    That was it. Perfect. Thank you very much!

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