anchor.diff:  ** For iPXE:
   +
   ----
  -kernel  http://<HTTP_server>/rhcos-<version>-<architecture>-installer-kernel ip=dhcp rd.neednet=1 initrd=http://<HTTP_server>/rhcos-<version>-<architecture>-installer-initramfs.img console=tty0 console=ttyS0 coreos.inst=yes coreos.inst.install_dev=sda coreos.inst.image_url=http://<HTTP_server>/rhcos-<version>-<architecture>-metal-bios.raw.gz coreos.inst.ignition_url=http://<HTTP_server>/bootstrap.ign <1>
  -initrd http://<HTTP_server>/rhcos-<version>-<architecture>-installer-initramfs.img <2>
  +kernel  http://<HTTP_server>/rhcos-<version>-<architecture>-installer-kernel ip=dhcp rd.neednet=1 initrd=http://<HTTP_server>/rhcos-<version>-<architecture>-installer-initramfs.img console=tty0 console=ttyS0 coreos.inst=yes coreos.inst.install_dev=sda coreos.inst.image_url=http://<HTTP_server>/rhcos-<version>-<architecture>-metal-bios.raw.gz coreos.inst.ignition_url=http://<HTTP_server>/bootstrap.ign <1> <2>
  +initrd http://<HTTP_server>/rhcos-<version>-<architecture>-installer-initramfs.img <3>
   boot
   ----
   <1> Specify locations of the {op-system} files that you uploaded to your
  
positive.code: PROMPT 0
  LABEL pxeboot
      KERNEL http://<HTTP_server>/rhcos-<version>-<architecture>-installer-kernel <1>
      APPEND ip=dhcp rd.neednet=1 initrd=http://<HTTP_server>/rhcos-<version>-<architecture>-installer-initramfs.img console=tty0 console=ttyS0 coreos.inst=yes coreos.inst.install_dev=sda coreos.inst.image_url=http://<HTTP_server>/rhcos-<version>-<architecture>-metal-bios.raw.gz coreos.inst.ignition_url=http://<HTTP_server>/bootstrap.ign <2>
  ----
  <1> Specify the location of the `kernel` file that you uploaded to your HTTP
  server.
  <2> Specify locations of the {op-system} files that you uploaded to your
  HTTP server. The `initrd` parameter value is the location of the `initramfs` file,
  the `coreos.inst.image_url` parameter value is the location of the compressed
  metal BIOS file, and the `coreos.inst.ignition_url` parameter value is the
  
negative.code: the `coreos.inst.image_url` parameter value is the location of the compressed
  metal BIOS file, and the `coreos.inst.ignition_url` parameter value is the
  location of the bootstrap Ignition config file.
  <2> If you use multiple NICs, specify a single interface in the `ip` option.
  For example, to use DHCP on a NIC that is named `eno1`, set `ip=eno1:dhcp`.
  <3> Specify the location of the `initramfs` file that you uploaded to your HTTP
  server.
  
  . If you use UEFI, edit the included `grub.conf` file that is included in the
  