How to increase the root partition size, during installation? I left remaining unallocated space. Now I want to increase / size. my 1 partition is /, 2 is home, and 3 is swap and after swap unallocated space mention with 70GB. I tried with live USB in GParted, but the resize/move buttons were disabled. also used the Disks app, but it was not working. I also swap off the swap partition .My system is fully installed.
Short answer:
Boot the Ubuntu install media in "Try ubuntu" mode
and you will be able to use e.g. gparted.
More detail: https://askubuntu.com/a/18525/289138
If your system is working properly, leave it alone.
Start gparted.
Create a new partition on ext4 filesystem.
Mount it on your ~/ , for example as Data, and you're already using the available space.
Your / has 45 gigabytes unused, so why add more gigabytes to it?
