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I did a fresh install of 16.04 along side 14.04 last summer. I am satisfied with 16.04 and want to remove 14.04 from GRUB and free up the disk space that 14.04 is occupying. What steps should I use?

user543838
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  • [Remove old kernels](http://askubuntu.com/questions/2793/how-do-i-remove-old-kernel-versions-to-clean-up-the-boot-menu), then delete the other system partition. – mikewhatever Dec 09 '16 at 15:18
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    Is there a separate /boot partition, or is /boot only directory below /? Please post the output of `sudo fdisk -l /dev/sda` and `df`to assist – ridgy Dec 09 '16 at 15:49
  • I think editing the question in case there is more than one disk could also be helpful so please include lsblk as well. – ianorlin Dec 09 '16 at 19:23

1 Answers1

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Try this tool OS uninstaller:

Steps:

  1. boot computer on live usb
  2. choose try Ubuntu

  3. open a new terminal (Ctrl+Alt+T), and run the following command:

    • sudo add-apt-repository ppa:yannubuntu/boot-repair
    • sudo apt-get update
    • sudo apt-get install -y os-uninstaller && os-uninstaller

  4. Use os-uninstaller to remove Ubuntu 14.04:

    • launch os-uninstaller from dash

    • choose OS you want to remove and click ok/

    • enter image description here

    • on confirmation window click Apply
    • enter image description here

Source: OS-Uninstaller

George Udosen
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