Comment by ValdikSS

It works on the majority of UEFI implementations

1. Just a matter of a boot entry. However adding the boot entry is not trivial: efibootmgr used to have implementation which have been reverted (it was incomplete, works only with full device path unlike just MAC which the original code added).

I don't know any utilities to do that, ended patching efibootmgr myself.

Learned about it from this talk: https://youtu.be/EtGhHCr3VLE?t=567

2. HTTP Boot is also available as a DHCP option 67 without boot entry:

* https://github.com/tianocore/tianocore.github.io/wiki/HTTP-B...

* https://documentation.suse.com/sles/15-SP6/html/SLES-all/cha...