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Thread: Question about partitioning problems with dual booting Ubuntu w/ Windows 7

  1. #1
    Join Date
    Jul 2013
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    Question about partitioning problems with dual booting Ubuntu w/ Windows 7

    Hey everybody,

    I recently (successfully) dual-booted Ubuntu 12.04 with Windows 7. I have Windows 7 on C:\ and I also have D:\. I shrunk D:\ to create a space of about 300GB. I installed Ubuntu on it. I had some problems with something completely unrelated and I uninstalled Ubuntu, intending to re-install it later.

    Now, I started to re-install Ubuntu (I thought this time, I'll work with Ubuntu 13.04). When I checked out my Disk Management in Windows, it showed my previously unallocated partitions as 2 healthy primary partitions (obviously). I deleted one of them (the smaller one), and it got automatically merged in the second one. When I deleted the second one, it became "free space" alongside my D:\ - the box that shows in green in Disk Management. I was under the impression that I will just delete this box, and I will get the black box "Unallocated" one. When I deleted it, there was this warning message that said "This is an extended partition ...etc". I went ahead with it and this error message came up "Unable to delete this partition due to low disk space. I was unable to convert this "free space" into "unallocated".

    Sigh. I thought I'd try out Ubuntu anyway and booted into the LiveCD and chose "Install Ubuntu" and there came the option to "Install Alongside WIndows" and I clicked it... and it just ran. It installed itself, without showing me WHERE it was installing!

    (I think it installed in my external hard drive!)

    Anyway, now I am in Live session, having GParted open in front of me. This is what I'm seeing. See attached.

    Please help me out. I'm new to this whole partition thing.

    Thank you
    Attached Images Attached Images
    Last edited by uahsan3; July 1st, 2013 at 11:13 PM. Reason: wrong attachment

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
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    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Question about partitioning problems with dual booting Ubuntu w/ Windows 7

    I do not like auto install as I never know where it will install. I prefer to partition in advance and then use manual install or Something Else to choose / (root). Since swap exists it finds it automatically and I use separate /mnt/data partitions for all data so do not use separate /home.

    You are showing NTFS partitions with very little space left. It is my understanding that NTFS works best if 30% is free. And at 10% free you just about cannot run a defrag as there is no working room. And system will be slow as it has fragmentation and has to write to lots of places.

    All versions are similar for installing, so examples work for just about every version.
    Install options, Do not use erase entire drive unless that is really what you want.
    http://www.ubuntu.com/download/help/...g-term-support
    https://help.ubuntu.com/community/GraphicalInstall
    https://help.ubuntu.com/community/WindowsDualBoot
    Install Ubuntu 12.10 0 with screenshots
    http://www.ubuntu.com/download/help/...desktop-latest
    http://howtoubuntu.org/how-to-instal...cise-pangolin/
    Install 12.04- side by side auto install with screen shots
    http://www.psychocats.net/ubuntu/installing
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
    Join Date
    Dec 2011
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    626
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Question about partitioning problems with dual booting Ubuntu w/ Windows 7

    Looking at the attachment you posted; I would do this if it were my system:-

    -Leave dev/sda1 and dev/sda2 alone.

    2. Click on and highlight dev/sda3 and delete that partition.
    3. Click on and highlight dev/sda5 and delete that partition.
    4. Click on and highlight the 'unallocated' partition and while it's highlighted go up to 'new' and create a new partition for your Ubuntu distribution about 20 GB.
    5. Click on and highlight the rest of the unallocated or free space and make a 'new' partitiion 'swap'( swap should be in the drop down menu within G-parted)

    That should solve the problem.

    The only other way is to re-install Ubuntu and choose to manually manipulate the partitions using the partition mgr that the installer comes with-
    "A morning w/o coffee is like something w/o something else"


    Voyager 12.04 Xubuntu based on AMD Phenom Quad Core & CentOS on Sony Vaio


  4. #4
    Join Date
    Apr 2011
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    3rd Rock from the Sun
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    Distro
    Ubuntu Development Release

    Re: Question about partitioning problems with dual booting Ubuntu w/ Windows 7

    To delete an Extended partition you must first delete all the Logical Partitions it contains. In other words make sure the size of unallocated space after Extended partitition is equal to the size of the Extended partitition.
    An EXTENDED Partititon is Primary Partition which 'contains' Logical Partitions.

    After creating an Extended Partition:
    30GB Logical Ext4 Mountpoint=/
    2-4GB Logical SWAP
    All the remaining GB Logical Ext4 Mountpoint=/home

    When Installing Ubuntu choose 'Something Else' optition when the dialog asks you about the 'Installation Type'.

    Good Luck...
    "Evolution is Nature's way of issuing upgrades."

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