GRUB EFI Boot Menu

Use this option to add an additional menu item in the boot menu for the ISO, which will allow you to do an automated install after setting your preferences and potentially using any utilities on the standard boot menu.

This is for modern (EFI/UEFI) systems.

Alternative Configurations:

0644 root root custom-iso/boot/grub/grub.cfg
15set default 0
16menuentry "Install Ubuntu Server w/ Saltstack minion" {
17  set gfxpayload=keep
18  linux /install/vmlinuz file=/cdrom/preseed/ubuntu-saltstack.seed debian-installer/language=en debian-installer/country=US console-setup/ask_detect=false keyboard-configuration/layoutcode=us debian-installer/locale=en_US.UTF-8 localechooser/preferred-locale=en_US.UTF8 quiet ---
19  initrd /install/initrd.gz


This assumes you place the custom entry first. Adjust default accordingly.

Proceed to Create Preseed Installation File