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Thread: Identify partitions to Delete

  1. #11
    Join Date
    Nov 2009
    Location
    Segur De Calafell, Spain
    Beans
    11,660
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Identify partitions to Delete

    I haven't used the mentioned os uninstaller.

    As for partitions changing numbers, that will probably happen, but all recent versions of ubuntu use UUIDs and not the traditional /dev/sdXY notation, and the same applies to grub2.

    So, even if the partitions change numbers the system should still work fine because it finds the partition by UUID which is the same unless you format a partition. By formatting it gets new UUID.

    In worst case, you can always edit fstab from live mode.

    Open fstab and check the above mentioned. If you see something like UUID=<string> and not /dev/sdaX then it's using UUIDs and you have nothing to worry about partition numbers.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  2. #12
    Join Date
    Jan 2009
    Beans
    9

    Re: Identify partitions to Delete

    ok, i dont know how to examine fstab directly...
    though i can examine the exhaustive output from boot repair...

    so can ANYONE confirm for me what no one has addressed...
    AFAIR when i installed some ubuntu I had to make four partitions -
    for root (/),boot,/home and swap.
    Are all FOUR of these contained in my sda12 and sda13?

    if not, exactly where are the others located?
    if no one can tell, am I still safe in deleting all sda between 4 and 11 inclusive?

    I am sorry for the shouting - I have received some great responses here but none reassures me that all 4 are accounted for- or dont need to be.

    Did ubuntu change at some point to only require the two partitions?

    Thanx

  3. #13
    Join Date
    Nov 2009
    Location
    Segur De Calafell, Spain
    Beans
    11,660
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Identify partitions to Delete

    No, sda12 and sda13 are only TWO partition, and they are the minimum ubuntu needs to work, so clearly you don't have FOUR partitions in them.

    However, if this 4 partition ubuntu was one of the older installations you want to delete, it doesn't matter how many partitions it consisted of, you still want to delete all of them, right? Or not?

    I was under the impression that you only want to keep the latest installation and according to what we have seen the one you are using uses sda12 and sda13. And that you don't have any important information inside all other installations/partitions.

    You can have one installation installed with separate /boot and /home and another installation without them. It can work either way and they don't interfere with each other except usuallt sharing the swap partition.

    The easiest way to examine /etc/fstab in terminal is:
    cat /etc/fstab

    That will list the content.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

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