Mirrors profiles/n100.profile with one deliberate difference: the loader
default stays at the stock signed shim chain. mkimage exists to work around
the N100's AMI firmware GRUB relocation defect, not as a Felhom requirement,
and it costs Secure Boot. HP business firmware should take shim - so try it
first and carry mkimage as the fallback.
Ships the match-nothing disk filter, so built as-is it IS the hp-safety
pre-flight ISO. Arming instructions point at an uncommitted working profile,
per the n100-demo precedent.