The Ubuntu installation takes up about 2.3GB of space and the rest of the allocated size is open for files and applications. If you are planning on storing a large amount of data inside of your VM, it may be better to give more than 8GB.

How many GB is Linux Ubuntu?

Absolute Requirements

The required disk space for an out-of-the-box Ubuntu installation is said to be 15 GB. However, that does not take into account the space needed for a file-system or a swap partition. It is more realistic to give yourself a little bit more than 15 GB of space.

Is 30 GB enough for Ubuntu?

In my experience, 30 GB is enough for most kinds of installations. Ubuntu itself takes within 10 GB, I think, but if you install some heavy software later, you’d probably want a bit of reserve.