I want to start using Ubuntu so I went to software shop today, asking for Ubuntu Desktop installation media.
There were some Ubuntu boxes, like Windows ones. I was told that I should enter a product key from some label when installing Ubuntu. I have never seen copy protection in free software.
I was allowed to copy an example label PNG.
I am unable to download Ubuntu from official website because my computer doesn't have operating system installed and I don't have any other devices.
Where can I purchase genuine Ubuntu?