Cannot boot vmlinuz in efi

[silver310]

Hello, I've recently cam across this problem when trying to boot an installation iso of RHEL 6.7
I can boot centos 7, fedora 22, and rhel 7 with no issues in EFI and legacy mode.
However i cannot boot RHEL 6.7, when ever i try to boot the kernel i get the error code 2e008081 (http://ipxe.org/err/2e0080)

If i burn the iso to a usb key i can boot in both EFI and legacy.

Any idea why this is happening (old kernel version?), i've also tried coping vmlinuz from RHEL 7 iso and boot it with the initrd.img of RHEL 6, it boots but cannot recognize any network devices.

My last effort was to try to chain BOOTX64.efi, but i can't seem to make it load the config file.

Here's my menu entry:

:rhel67server
echo Starting RHEL 6.7 Server x64
set repo ${http-images}/iso_images/RHEL_6.7_server
imgfetch ${repo}/images/pxeboot/vmlinuzboot
initrd ${repo}/images/pxeboot/initrd.img
imgargs vmlinuzboot repo=${repo} initrd=initrd.img
boot vmlinuzboot || goto failed

i used imgfetch because if i use kernel it will stop with an error, with imgfetch it will go to boot and if failed then return to menu. BTW all other menu entries are exactly like this and they all work in EFI/Legacy.