Try the "mini.iso" netboot install, then install the desktop you want: http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/n

Try the "mini.iso" netboot install, then install the desktop you want: http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/ http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-... This is an old Xubuntu article, but describes the general approach for a minimal install: https://xubuntu.org/news/introducing-xubuntu-core/ https://xubuntu.org/news/introducing-xubuntu-core/