So, I will keep it quick. I want to install ubuntu, but seems like my touchpad doesn't work until I download drivers, and I only have one USB port so a mouse is not an option. Does anybody know a version or a way of Ubuntu where I can just install it with only keyboard? My mouse is Synaptics.
EDIT: I am installing the system, I don't have access to terminal
The "MinimalCD" is exactly what you want.
The installer is keyboard only, so disconnect your mouse.
Download the Ubuntu 20.04 "mini.iso" file from the following location and create a bootable USB with it.
http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/
Then boot into this USB.
Note: The "MinimalCD" installer requires a Non-UEFI system. You may need to boot into your BIOS and set it to boot in Legacy mode. If your computer only uses UEFI, the "MinimalCD" installer will not work.
The mini.iso is only 78 MB in size because it will download all of the Ubuntu installation files as needed.
The benefit for you is that the installer is keyboard only. Use the Tab, ←, →, ↑, and ↓ keys to navigate; use the Space and Enter key to make selections or the Esc key to undo selections.
After booting into the ISO, select the first option...
Here is an example of what the installation screens look like...
