[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 13:35:05 BST 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:
https://community.iserv.eu/upload/eitae6OhM9oos0EyefeiNaxathoLoo4PhohPheijaiPiphoofeix5thoo3ogah8j/Picture%201.jpg

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

#!ipxe

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:
https://community.iserv.eu/upload/eitae6OhM9oos0EyefeiNaxathoLoo4PhohPheijaiPiphoofeix5thoo3ogah8j/Picture%202.jpg

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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