SDB Talk:IPXE booting ipv6 uefi

I have tested this configuration with different notebooks and pcs from asus, fujitsu and hp(devices since 2014).
an alternative script with a menu for different linux os
  #!ipxe
  menu Selection
  item osleap151   install opensuse leap 15.1
  item osleap152   install opensuse leap 15.2
  item tumbleweed  install opensuse tumbleweed
  item ubuntu18    install ubuntu 18
  item ubuntu20    install ubuntu 20
  item debian10    install debian 10
  item debian10lrz install debian 10 lrz mirror
  choose os && goto ${os}
  :osleap151
  kernel http://download.opensuse.org/distribution/leap/15.1/repo/oss/boot/x86_64/loader/linux splash=silent initrd=initrd install=http://download.opensuse.org/distribution/leap/15.1/repo/oss/
  initrd http://download.opensuse.org/distribution/leap/15.1/repo/oss/boot/x86_64/loader/initrd
  boot
  :osleap152
  kernel http://download.opensuse.org/distribution/leap/15.2/repo/oss/boot/x86_64/loader/linux splash=silent initrd=initrd install=http://download.opensuse.org/distribution/leap/15.2/repo/oss/
  initrd http://download.opensuse.org/distribution/leap/15.2/repo/oss/boot/x86_64/loader/initrd
  boot
  :tumbleweed
  kernel http://download.opensuse.org/factory/repo/oss/boot/x86_64/loader/linux splash=silent  initrd=initrd install=http://download.opensuse.org/factory/repo/oss/
  initrd http://download.opensuse.org/factory/repo/oss/boot/x86_64/loader/initrd
  boot
  :ubuntu18
  kernel http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/linux initrd=initrd.gz
  initrd http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/initrd.gz
  boot
  :ubuntu20
  kernel http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/ubuntu-installer/amd64/linux initrd=initrd.gz
  initrd http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/ubuntu-installer/amd64/initrd.gz
  boot
  :debian10
  kernel http://ftp.debian.org/debian/dists/buster/main/installer-amd64/current/images/netboot/debian-installer/amd64/linux initrd=initrd.gz
  initrd http://ftp.debian.org/debian/dists/buster/main/installer-amd64/current/images/netboot/debian-installer/amd64/initrd.gz
  boot
  :debian10lrz
  kernel http://debian.mirror.lrz.de/debian/dists/buster/main/installer-amd64/current/images/netboot/debian-installer/amd64/linux initrd=initrd.gz
  initrd http://debian.mirror.lrz.de/debian/dists/buster/main/installer-amd64/current/images/netboot/debian-installer/amd64/initrd.gz
  boot