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Thread: How-to Install 9.10 on fakeraid

  1. #1
    Join Date
    May 2009
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    77
    Distro
    Ubuntu 12.04 Precise Pangolin

    How-to Install 9.10 karmic on fakeraid

    This is how I installed 9.10 karmic onto a stripped fakeraid Raid 0 array. These instructions may or may not work for a mirrored raid 1 array, I have gotten limited feedback on this. All you really need is the LiveCD and an internet connection. The steps outlined here are used after Ubuntu has been installed but fails to boot. Just load the LiveCD environment and follow these steps. Mind you this may be a daunting task to a person new to Ubuntu but if you have any command line experience you should be fine. I made this how-to cause I felt many others were lacking in some areas. I had searched around the net and found bits and pieces to make this work and thought how nice to have it all in one spot so here it is. ##Note this works on ext4 w/o any patch, 9.10 no longer requires install via Alternate CD as the LiveCD has dmraid included, also note fdisk does not work well with dmraid use gparted instead.

    1. Open a terminal: Applications, Accessories, Terminal.

    2. Create a mounting point
    sudo mkdir /mnt/root

    3. ls /dev/mapper
    In this example the output would have shown "nvidia_cffbdeda, nvidia_cffbdeda1, nvidia_cffbdeda2" where nvidia_cffbdeda is the hdd. All the others listing a # on the end are the partitions. If you don't know what partition is the root of your installation check out gparted. I will use nvidia_cffbdeda1 in the following steps as an example for mounting and chrooting into the installation.

    4. Mount the installation
    sudo mount /dev/mapper/nvidia_cffbdeda1 /mnt/root
    *If this fails use nautilus (thunar in xbuntu) to mount your Ubuntu root partition then use mount to find the mount location. This location will be used in place of /mnt/root in the following steps.
    sudo mount --bind /dev /mnt/root/dev
    sudo mount -t proc proc /mnt/root/proc
    sudo mount -t sysfs sys /mnt/root/sys
    sudo mount -t devpts devpts /mnt/root/dev/pts
    sudo cp /etc/resolv.conf /mnt/root/etc/resolv.conf


    5. Login into the installation
    sudo chroot /mnt/root /bin/bash

    6.Fetch most recent package lists
    apt-get update


    7. Remove GRUB2
    apt-get purge grub2 grub-pc
    rm -r /boot/grub
    ##The system will be unbootable until another bootloader is installed.

    8. Install GRUB 0.97
    apt-get install grub
    grub-install /dev/mapper/xxx ##note please substitute your hdd in this line (mine would have been nvidia_cffbdeda)

    9. At this point it may be a good idea to check the device.map
    chmod 777 /boot/grub/device.map##For write access
    nano /boot/grub/device.map
    Mine was incorrect and I changed it to:
    (fd0) /dev/fd0
    (hd0) /dev/mapper/nvidia_cffbdeda ##was listed as /dev/sda which is incorrect
    (hd1) /dev/sdc
    Afterwards use this to restore file permissions
    chmod 744 /boot/grub/device.map
    If changes were made then re-run grub-install

    10. grub --no-curses ##you will now be at the grub prompt##
    grub> device (hdx) /dev/mapper/xxx ##note please substitute your hdd in this line
    grub> find /boot/grub/stage1 ##make a note of the output it is used in the next step
    grub> root (hdx,y) ##(hdx,y) where x is the drive (most likely 0) and y is the partition (first partition would be 0 NOT 1)
    setup (hdx)
    quit
    update-grub
    ##When prompted to generate a menu.lst file say yes

    13. Run these commands to keep it from upgrading automatically:
    echo "grub hold" | sudo dpkg --set-selections
    echo "grub-common hold" | sudo dpkg --set-selections

    14. Reboot

    As much as I have tried to make this guide complete it seems to not work for some people and anyhelp I can get in making this guide complete is much appreciated. Namely Raid 1 issues.
    Step 10 problems arise when you don't specify the correct device for (hd0)
    BIOS boot order can also affect this step so make sure it's correct
    In some extreme cases it's necessary to remove other hard drives from the sys as some cheap motherboards lack the understanding of fakeraid and tell grub IDE devices boot first. Thus effectively installing grub to the wrong disk in some cases.
    Last edited by gilson585; January 23rd, 2010 at 01:12 PM.

  2. #2
    Join Date
    Jul 2007
    Location
    Western, NY
    Beans
    27
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: How-to Install 9.10 on fakeraid

    Thanks! Finally a guide that has all the steps listed in one location. The last time I did this I had to span a handful of websites to get all the information.

  3. #3
    Join Date
    Sep 2007
    Location
    Surrey, UK
    Beans
    1,903
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: How-to Install 9.10 on fakeraid

    Hi Gilson,

    Why dont you add the karmic entry to the wiki community docs?
    System Specs:
    Desktop: E6420 (@3.4GHz, Water Cooled), 4GB DDR2, 1.6 TB HDs, X1950 Pro (OS Driver),
    Dual Boot Win7/Jaunty, 19" 4:3 + 24" 16:9.
    Laptop: Toshiba L30, T2080 Pentium Dual Core, 2 GB DDR2, 250GB Hard disk.

  4. #4
    Join Date
    May 2009
    Beans
    77
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: How-to Install 9.10 on fakeraid

    Thanks for the suggestion danwood, I will as soon as I get a lil more feedback. Probably in the next few days.

  5. #5
    Join Date
    May 2007
    Beans
    90

    Re: How-to Install 9.10 on fakeraid

    I'm going to be testing this out tonight/tomorrow. If this works you'll be my next best friend.

    I've been fighting this all day long, its been driving me crazy.

    Thanks for putting in the effort.

  6. #6
    Join Date
    Nov 2008
    Beans
    41

    Re: How-to Install 9.10 on fakeraid

    Thanks for the post Gilson, unfortunately I get the same error as the Howto for Jaunty. I am using an Intel ICH9 FakeRaid.

    On step 10

    10. grub --no-curses ##you will now be at the grub prompt##
    grub> device (hdx) /dev/mapper/nvidia_cffbdeda ##note this is the hdd not a partition
    grub> find /boot/grub/stage1 ##make a note of the output it is used in the next step
    grub> root (hdx,y) ##(hdx,y) where x is the drive (most likely 0) and y is the partition (first partition would be 0)
    setup (hdx)
    quit
    I get "unspecified something something" before getting the grub prompt. And I also cannot do a find on stage 1, as I get "error: 15 file not found" even when the file is under /boot/grub ...
    I would really like to get this solved soon, but I fear I may have to wait for Lucid Lynx.

  7. #7
    Join Date
    May 2009
    Beans
    77
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: How-to Install 9.10 on fakeraid

    I'm sorry to hear that jpichie. Can you post the output of ls /dev/mapper, your device.map, and the entire terminal session of the steps above. I'll review it and see what I can find.

  8. #8
    Join Date
    Sep 2006
    Beans
    818

    Re: How-to Install 9.10 on fakeraid

    grub> device (hdx) /dev/mapper/nvidia_cffbdeda ##note this is the hdd not a partition
    I suspect the device/mapper/nvidia_ field in the commads is incorrect for Intel ICH9 fake raid. Unfortunately, I don't know the correct device name but it could be a clue to guide your googling.

    --wally.
    Your commitment to Freedom is measured by your tolerence for others doing things you disapprove.

  9. #9
    Join Date
    May 2009
    Beans
    77
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: How-to Install 9.10 on fakeraid

    Yes that would very much so cause his problem. Although I was just using that as an example, I may have to change it to make things a lil clearer.

  10. #10
    Join Date
    May 2007
    Beans
    90

    Re: How-to Install 9.10 on fakeraid

    I'm attempting to run this now, and I'm hitting a bit of a snag.

    I'm getting to step 8, and something seems to be going wrong when I run 'sudo apt-get install grub'

    Code:
    root@ubuntu:/# sudo apt-get purge grub2 grub-pc
    sudo: unable to resolve host ubuntu
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    Package grub2 is not installed, so not removed
    The following packages will be REMOVED:
      grub-pc*
    0 upgraded, 0 newly installed, 1 to remove and 159 not upgraded.
    After this operation, 1,786kB disk space will be freed.
    Do you want to continue [Y/n]? y
    Can not write log, openpty() failed (/dev/pts not mounted?)
    (Reading database ... 116539 files and directories currently installed.)
    Removing grub-pc ...
    Purging configuration files for grub-pc ...
    Processing triggers for man-db ...
    root@ubuntu:/# sudo apt-get install grub
    sudo: unable to resolve host ubuntu
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    Suggested packages:
      grub-doc mdadm
    The following NEW packages will be installed:
      grub
    0 upgraded, 1 newly installed, 0 to remove and 159 not upgraded.
    Need to get 903kB of archives.
    After this operation, 1,974kB of additional disk space will be used.
    Get:1 http://au.archive.ubuntu.com karmic/main grub 0.97-29ubuntu59 [903kB]
    Fetched 903kB in 4s (183kB/s)
    Preconfiguring packages ...
    Can not write log, openpty() failed (/dev/pts not mounted?)
    Selecting previously deselected package grub.
    (Reading database ... 116356 files and directories currently installed.)
    Unpacking grub (from .../grub_0.97-29ubuntu59_amd64.deb) ...
    Processing triggers for man-db ...
    Can not write log, openpty() failed (/dev/pts not mounted?)
    Setting up grub (0.97-29ubuntu59) ...
    If I then go to /boot/grub, there is nothing in there:
    Code:
    root@ubuntu:/boot# cd grub
    root@ubuntu:/boot/grub# ls
    root@ubuntu:/boot/grub#
    Which makes me believe that something has gone wrong installing grub. Do I need to install dmraid or something when I'm under chroot?

    Another quick question - Should step 9 read:
    Code:
    sudo chmod 777 /boot/grub/device.map
    Since we're still under chroot? (or could it just be 'nano /boot/grub/device.map' without any change to the permissions?)

    Either way, thanks for the help. I think my problem may lie in something going wrong with installing grub. I will continue my investigation, but appreciate any advise you may have.

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