I have Ubuntu 18.10 installed and I am running out of space. I have unallocated space of 7 GB which I want to add to Ubuntu. Please guide me on how to achieve it.
I find GParted to be the easiest tool to do this here is a link to explanation on how it works. I do recommend taking back up before doing any partitioning.
Ok so first you want to download GParted and make a USB bootable disk. Easiest tool for that to use is Rufus.
Once you have it boot from it. (This is because you cant have your disks mounted while trying to partition them).
Next select the partition you want to extend. You have to make sure the space you have free is to the right of the partition. If you have more than one you have to shuffle other partitions further to the right until you get a free space there. Also if you do need to resize another partition (Part B) to the right of the partition you are looking at originally (Part A) remember to save changes in between as otherwise it will not allow you to extend you Partition A as Partition B is still in the way until you commit changes. This is the kind of screen you will get while resizing.