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Thread: Creating a copy of a partition

  1. #1
    Join Date
    Dec 2010
    Location
    Kansas
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    7
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Creating a copy of a partition

    I'm reading about copying my Ubuntu partition here (https://help.ubuntu.com/community/MovingLinuxPartition) and I'm a little confused on one point.

    Once the partition is copied, both the old and the new partiion have the same UUID -- I get that. What I don't understand is why the UUID of the new partition needs to be changed if the old partiion is removed from the computer. (And from that, why grub.cfg and fstab need to be updated.) I'm sure there's a reason, but it seems to me that if you're just switching hard drives the boot information and whatnot would be fine.

    I don't suppose someone can fill in the missing piecefor me? Thanks!

  2. #2
    Join Date
    Jun 2006
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    UK
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    Ubuntu 13.10 Saucy Salamander

    Re: Creating a copy of a partition

    The way I read that page is that it is assuming that the cloned (moved to) partition will be in the same machine as the original, whether on the original hard drive or another one. In which case the UUID will have to be changed, with a need then to amend /etc/fstab and grub. If you intend to use the cloned/moved partition in another machine, then you don't need to do anything about the UUID - I agree.

    The page could do with a clarification, imo, in the first paragraph.

    Please do not PM me about your forum account unless you have been asked to. The correct place to contact an admin about your account is here.

  3. #3
    Join Date
    Dec 2010
    Location
    Kansas
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    7
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Creating a copy of a partition

    Thank you. That makes sense to me. I'm still just getting a handle on how things work below the surface, so to speak.

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