UEFI grub + wimboot

[ndog]

Hi there

I am keen to know if anyone could get wimboot + grub UEFI pxe boot working.

Heres my steps

download Fedora-Xfce-Live-x86_64-24-1.2.iso
extract \EFI\BOOT\
- BOOTX64.EFI
- grubx64.efi
- grub.cfg

setup tftp to serve BOOTX64.EFI

Add entries in grub.cfg

menuentry 'wimboot 1' {
linuxefi /boot/wimboot
}

menuentry 'wimboot 2' {
linuxefi /boot/wimboot
initrdefi \
newc:bcd:/boot/boot/BCD \
newc:boot.sdi:/boot/boot/boot.sdi \
newc:boot.wim:/boot/boot.wim
}

After booting from UEFI pxe and selecting wimboot 1 or 2, there is an error message

error: kernel too old.
error: you need to load the kernel first.
Press any key to continue...