Thanks for all responses. I'll definitely try.
Please tell me what's the difference between Ubuntu Core and Ubuntu Server. I found those two versions, but I don't know which one should I use for web server.
I like minimalism and knowledge about what is installed on device. During standard installation process I can customize it and that's what I'm looking for. I'm a little bit afraid of using preinstalled OS.
And also I'm going to use external HDD drive, at least for storing data.
I'd like to buy Raspberry Pi to create simple web server at home . I want to host some of my projects and store files. Is there a possibility to install Ubuntu Server manually instead of flashing preinstalled version?