Answer:
I find 5 categories
Explanation:
1 Overview
2 Necessity
3 Types
4 Attended installation
4.1 Silent installation
4.2 Unattended installation
4.3 Headless installation
4.4 Scheduled or automated installation
4.5 Clean installation
4.6 Network installation
5 Installer
5.1 Bootstrapper
5.2 Common types
5.3 System installer
