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I have a 931 GB hard drive with 3 logical volumes. One for ubuntu(100 GB), One is for swap(4 GB), and the third one(891 GB) is empty as shown in the pics. The question is, how can I make a new partition from the empty logical volume (named data)?

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  • Have you checked this? askubuntu.com/questions/73467/…
    – Anwar
    Aug 20, 2016 at 11:22
  • the 'data' partition isn't unallocated in my case.
    – saga
    Aug 20, 2016 at 11:26
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    can you click on one third partition? and then select partition > New ?
    – Anwar
    Aug 20, 2016 at 11:29
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    I do not see anything empty. Your disk has 3 partitions. You can remove sda3 and create a new one if you like.
    – Pilot6
    Aug 20, 2016 at 11:41
  • sda3 has ubuntu installed on the 'root' volume. I want to make a new partition from data volume, which is a part of sda3 along with 'root'. So I can't remove sda3. By empty I meant I haven't stored anything on the 'data' volume.
    – saga
    Aug 20, 2016 at 12:01

1 Answer 1

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First you need to downsize sda3,and then create a new partition in the resulted empty space. You can't create a partition from another partition. LVM (Logical Volume Management) is only necessary when dealing with multiple harddisks. If you have just one harddisk (Disks app says so) LVM is quite useless.

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  • I've deleted the 'data' volume. Now sda3 has 830 GB free space. But I can't resize the partition with gparted. it says: ' /dev/sda3 : cannot resize to 28116 extents as later ones are allocated'
    – saga
    Aug 21, 2016 at 7:34
  • Select sda3, right-click on it and choose Delete. Press the 'Apply Changes' button (the green check sign). Right-click on the empty space and choose 'Create partition'. Set the partition size and press 'Apply changes' button again.
    – ipse lute
    Aug 21, 2016 at 7:39
  • is it safe to delete sda3? cos' I have ubuntu installed on it.
    – saga
    Aug 21, 2016 at 12:42
  • OK, don't delete it, choose Resize instead of Delete from the same menu. Make it smaller, Apply Changes, then click on the empty space and create a new partition.
    – ipse lute
    Aug 21, 2016 at 12:56
  • It doesn't work. Gparted gives the error I mentioned above.
    – saga
    Aug 21, 2016 at 13:13

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