Comment 17 for bug 1624096

@Jason -- your script looks alright to me. Can you attach the OVMF debug log captured with the script? (Although, if the debug mask configured at build time in the DSC files don't enable the DEBUG_VERBOSE bit, I won't see everything in the log that I would like to see.)

More importantly, can you upload your test ISO image (with the shim bug fixed, or worked around) somewhere? If you don't want to expose the URL publicly, feel free to send it to me in a private email, or in a private Launchpad message. (I vaguely recall that such a thing exists.)