Comment 1 for bug 1959618

This appears to be a valid bug report against shim based on the described problematic behavior of the upstream binary. However, fbx64.efi should not be included on ISO images; there is also a bug in the mastering of this (non-Ubuntu) ISO image. fbx64.efi is intended to be installed only on fixed disks as part of a *fallback* boot path in the event that the boot variables have been wiped from the firmware's nvram. It should not be installed on removable media.