kexec-tools not loading iPXE zImage

[Joshua Jensen]

I'm having an issue with kexec not being able to load a freshly compiled 
ipxe.lkrn file, even though it is a zImage:


# file ipxe.lkrn
ipxe.lkrn: Linux kernel x86 boot executable zImage, version \353FHdrS\007\002,RW-
rootFS,

# kexec -l ipxe.lkrn
Cannot determine the file type of ipxe.lkrn


Any ideas?  Is there any way to determine where the error is, with the ipxe.lkrn 
file or kexec ?

Thank you,

Joshua