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I am currently using ubuntu and windows 7. I don't want to use windows anymore , hence i deleted windows partition.

after deleting my windows partition it created 2 unallocated partition (Please see the screenshot)

How to make Single EXT4 Partition from these 2 Un-allocated partition

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    You need to get out of 41 GB unallocated space from the extended partition.
    – Avinash Raj
    Oct 26, 2014 at 11:22

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It appears that your root filesystem is already mounted (see the lock icon and 'Mount Point' label), therefore you cannot modify this partition. As you can see in the tree structure, the first 42 GiB is located in the extended partition while the second 100 GiB is located outside the extended partition.

Follow these steps to make a single EXT4 partition:

  1. Boot into a Live USB or CD to ensure that the root partition can be unmounted.
  2. Enlarge the extended partition (/dev/sda1).
  3. Enlarge the root partition (/dev/sda5).
  4. Apply.
  5. Reboot.
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  • IIRC resizing from GParted tends to change the UUID.
    – muru
    Oct 26, 2014 at 11:31
  • @muru I have never seen the UUID because of a resize. It is also unnecessary as the UUID is just an identifier to the partition, not a fingerprint of the dimensions.
    – Lekensteyn
    Oct 26, 2014 at 11:33
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    Besides, this change adds extra space to the right, not to the left. So no data needs to be moved which makes it a relatively safe operation.
    – Lekensteyn
    Oct 26, 2014 at 11:34
  • I know, I have used resize2fs and fdisk to resize the partition/filesystem without changing the UUID. But GParted has changed the UUID on me on a couple of occasions.
    – muru
    Oct 26, 2014 at 11:41
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    By default, GParted operations leave the existing UUID alone. The exceptions to this are: (a) when creating a new file system -- not copy, and (b) when choosing the "Partition -> New UUID" menu option. Note that many GNU/Linux distributions use the UUID to mount partitions -- see the /etc/fstab file.
    – Curtis Gedak
    Oct 27, 2014 at 19:36

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