I have Ubuntu 18.04 as my host OS. I want to live boot with an Ubuntu 18.04 iso to change my disk space using gparted without using USB.
I followed the steps that are required using unetbootin as described in the answer: https://askubuntu.com/a/484456/719469.
However I do not get any option called unetbootin in my grub menu when I boot my system using BIOS. Is there any solution?
Wubi's home page has not been updated in five years, and it points to a non-existent URL at Ubuntu.com . I don't see any support for 18.04 there or at its Launchpad page. I suggest you use a LiveDVD instead.