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B. Amine
Asked: 2017-08-15 05:15:30 +0800 CST

Add disk space to the / partition

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I have a dual boot system with Windows 10 and Ubuntu 17.04, and I have 20Gb of free unallocated space that I want to add to my Ubuntu / partition because I'm running out of space.

Here is a screen from GParted

I'm a beginner

dual-boot

2 Answers

  1. Best Answer

    Important note:

    Although normally everything works fine, there is a small risk of something going wrong when modifying your partitions, resulting in data loss.

    Therefore you should always have a current back-up of your important files before starting.

    • Boot from a live system, e.g. from the Ubuntu installer DVD/USB drive. Select "Try Ubuntu without installing" in the boot menu.

    • Start GParted on the live system.

    • Select your Ubuntu root partition /dev/sda8, right-click on it and click on Resize/Move.

    • Enlarge the partition by either dragging the left border of its graphic visualization to the left so that it covers up all unallocated space, or manually enter a value in the Free space preceeding field (probably you want 0 or whatever minimal value it allows to keep the partitions properly aligned).

    • Confirm your modification with the Resize/Move button.

    • Let GParted begin its work by clicking the green check button labelled "Apply all operations".

    • Once it is finished, reboot into your normal Ubuntu system on the disk. Done.

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  2. You cannot change the size of / on the run. You would have to boot from a live USB and then resize / with Gparted. This can be a risky process as your boot loader GRUB may point to an area of space for starting Ubuntu that has been moved.

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