In this blog post i will post the following scripts/answer files that i use for my Xenserver unattended installation.
The Xenserver unattended installation basically contains 3 steps
1. PXE boot your server to your TFTP server and load the Xenserver installer
2. Installation of Xenserver and the Post boot script.
3. first-boot-script.sh execution and final reboot.
Update: I have posted the files to a github.