After an update broke my MBP in 2015, I installed Ubuntu 18.04 on it (via USB). Now I want to return to macOS. When I start in recovery mode (cmd + optn + R), I reach the regular options menu. When I select the reinstall option, it takes me to the screen with the Mojave logo in a circle and asks me what disk I want to install on.
However, no disks appear. Recovery mode does not seem to be aware that I have any hard drives at all
how can I install macOS on my laptop?