Complex sentence: A chroot environment is set up with a very minimal Linux operating system and the X window system (X), which is configured to connect back to the server's instance of X. When a client boots, it requests IP address and boot information from DHCP.
Split into simpler sentences: A chroot environment is set up with a very minimal Linux operating system and the X window system (X). X is configured to connect back to the server's instance of X. When a client boots, it requests IP address and boot information from DHCP.