Problem:
I need to install ESXi 6.0/6.5 on UEFI machines. But I only find BIOS/PXELinux Deployment-HowTo in the internet. Can we build one here?
Expected outcome:
I expect to handle a ESXi installation in a similar fashion like any other Linux (RHEL, CentOS, Debian, …) - expect for the Puppet / Configuration part.
Foreman and Proxy versions:
Foreman 1.17.0
Other relevant data:
I know this:
- http://www.c0t0d0s0.de/esxwithforeman/esxwithforeman.html
- https://beryju.org/en/blog/getting-started-foreman-part-3
- https://be-virtual.net/automated-installation-with-vmware-esxi-5-56-06-5/
I have setup my DHCP to deliver different configs based on the system architecture. When a UEFI system is booting it will get an offer with the path to /grub2/grubx64.efi . As for now I can deploy CentOS and RHEL with this setup. 
but it seems that I miss something (knowledge wise) to get ESXi in combination with UEFI working.
I thought it is similar to CentOS for the first few steps… but… well no… or I miss more than I can oversee right know.
Other Facts:
install media is on a second server: ftp://storage.local/pub/isos/esxi/$major/$minor/$arch/
e.g.: ftp://storage.local/pub/isos/esxi/6/0/x86_64/