Booting ISO gives `Reloc 0 block size 2756420659 is invalid`

[Paul Menzel <pmenzel+edk2-devel@molgen.mpg.de>]

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Dear EDK2 folks,


On the two Dell laptops XPS 13 9360 and 9370 and with OVMF and QEMU the 
Grml live image [1] cannot be started from a USB device.

The error on the display is:

> Reloc 0 block size 2756420659 is invalid
> Relocation failed: Unsupported
> Failed to load image: Unsupported
> start_image() returned Unsupported

With OVMF I only the the first two lines.

Unfortunately, I do not know where the error comes from. Is it a GRU 
problem?

Here is how you can reproduce this with QEMU.

Download the ISO file [2], and follow *How to run OVMF* in the Wiki [3]. 
I downloaded Gerd’s prebuilt images [4] and extracted them.

Then I did `mkdir hda-contents` and run QEMU with the command below.

     qemu-system-x86_64 -enable-kvm -bios 
edk2.git/ovmf-x64/OVMF-pure-efi.fd -hda fat:hda-contents -net none -hdb 
~/Downloads/grml64-full_sid_latest.iso


Kind regards,

Paul


[1] https://grml.org/daily/
[2] https://daily.grml.org/grml64-full_sid/latest/grml64-full_sid_latest.iso
[3] https://github.com/tianocore/tianocore.github.io/wiki/How-to-run-OVMF
[4] 
https://www.kraxel.org/repos/jenkins/edk2/edk2.git-ovmf-x64-0-20180508.84.g7cd8a57599.noarch.rpm