Results 1 to 4 of 4

Thread: Is RAID supposed to not have a 2nd boot partition

  1. #1
    Join Date
    Dec 2008
    Location
    USA
    Beans
    525
    Distro
    Ubuntu 12.04 Precise Pangolin

    Is RAID supposed to not have a 2nd boot partition

    I have 2 disks in a RAID 1 array.

    I have 3 partitions on my primary disk; boot, / , and swap.
    /dev/sdb has mirror copy of the / partition. Thats it

    Should there be more, is that my misunderstanding? I have the redundancy of the data, but I can't boot that second disk so its far less useful to me than I originally thought.


    How can I get 2 identical disks?
    Last edited by wlraider70; July 15th, 2013 at 04:04 PM.
    I don' really like coffee. I guess I'll give my Ubuntu beans to my wife.

    Luke

  2. #2
    Join Date
    Nov 2008
    Location
    Storybrooke
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Is RAID supposed to not have a 2nd boot partition

    Quote Originally Posted by wlraider70 View Post
    I have 2 disks in a RAID 1 array.

    I have 3 partitions on my primary disk; boot, / , and swap.
    /dev/sdb has mirror copy of the / partition. Thats it

    Should there be more, is that my misunderstanding? I have the redundancy of the data, but I can't boot that second disk so its far less useful to me than I originally thought.


    How can I get 2 identical disks?
    If thats software RAID, then its normal
    You will need to have LVM setup on top of the RAID in order to have more than one partition on the RAID.
    Ubuntu Forums Moderation Staff
    Okay then. We're relying on mirror dust and fairies but now we have a plan which is progress - Emma

  3. #3
    Join Date
    Dec 2008
    Location
    USA
    Beans
    525
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Is RAID supposed to not have a 2nd boot partition

    The unit has a cheap (might be a stretch to call it) RAID controller. Its more of a PCI sata card that offers RAID controls.
    It is not the the mobo or OS raid.

    Is it possible to setup LVM now after my system is configured and running?
    I don' really like coffee. I guess I'll give my Ubuntu beans to my wife.

    Luke

  4. #4
    Join Date
    Nov 2008
    Location
    Storybrooke
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Is RAID supposed to not have a 2nd boot partition

    Quote Originally Posted by wlraider70 View Post
    The unit has a cheap (might be a stretch to call it) RAID controller. Its more of a PCI sata card that offers RAID controls.
    It is not the the mobo or OS raid.

    Is it possible to setup LVM now after my system is configured and running?
    are you using dmraid (fakeraid)?

    You *can* migrate to LVM, though it really depends on how much work you are willing to do.

    i.e. something like
    1. Mirror Drive onto External
    2. Create LVM Physical Volume/Volume Groups/Logical Volumes to represent root, swap, boot, etc
    3. Put the root data back on.
    4. Update FSTAB
    5. Reinstall and update grub

    There are tools such as "blocks" which will convert to LVM, but once again, there is always the chance of data loss, corruption, etc, etc
    Last edited by sandyd; July 15th, 2013 at 12:27 AM.
    Ubuntu Forums Moderation Staff
    Okay then. We're relying on mirror dust and fairies but now we have a plan which is progress - Emma

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •