[ipxe-devel] Error "Could not select: Exec format error (2e008081)" while loading EFI images via HTTP/TFTP

Felix Jacobi felix.jacobi at iserv.eu
Mon Sep 9 12:35:05 UTC 2019

Dear iPXE developers,

I am currently testing iPXE with a notebook which seems to be unable to
chainload EFI images via HTTP and TFTP. I tried loading a Linux kernel
with an EFI stub included and the EFI binary of SYSLINUX.

Both attempts results in the error message which you can see in the
first screenshot:

I used the following iPXE script snippet to load the Linux kernel:


kernel http://felix.mein-iserv.de/tftpboot/efi64/install ||
initrd http://felix.mein-iserv.de/tftpboot/efi64/miniroot.bz2 ||
imgargs install dn=i.local panic=5 initrd=miniroot.bz2 lang=de
video=vesa:ywrap,mtrr vga=791 service=felix.mein-iserv.de pckey=
consoleblank=3600 rootpwd=<redacted> hn=win-10-64-01 ||
boot ||

I also compiled an iPXE binary with enabled EFI basic debug facilities.
I shot a second picture with the resulting output:

The issue could maybe related to secure boot. In any case, I did not not
found settings related to it in the firmware settings. On the other hand
the iPXE binary which is also unsigned was loaded without any problem.
So I guess for now that secure boot isn't enabled.

Any help would be appreciated. If you need additional information please
let me know.

Thank you for your time.

Regards, Felix

Best regards,

Felix Jacobi

IServ GmbH
Bültenweg 73
38106 Braunschweig

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