Document SD boot with USB SYSTEM and maintenance recovery
Describe the 32 GB native microSD setup for boot, recovery and machine
settings, with SYSTEM retained on USB. Cover updating both FDS images,
preparing a separate Raspberry Pi OS maintenance USB, and selecting the
appropriate EEPROM boot order.
Update architecture, storage, flashing and Dasung guidance to match the
new defaults while retaining legacy NVMe support. Record rebuilt artifact
identities, passing software checks, the unavailable standalone init
fixture and the unexplained intermittent VM shutdown stall. Physical Pi
and maintenance USB acceptance remain pending.
felis