Ubuntu 18.04 LTS Server comes now in two flavors with different installers:
- Ubuntu Server (new Ubuntu-specific Subiquity installer, ubuntu-18.04-live-server-amd64.iso)
- Alternative Ubuntu Server installer (Debian installer, ubuntu-18.04-server-amd64.iso)
Canonical itself refers to the traditional installer for advanced networking and storage features. However, there are also other differences, this blog post looks into them.