What to do on the day a board is on the bench: media, cabling, what to
watch for, what counts as a pass, what to keep. Written before any board
has been booted.
Section 1 lists what was found in the code while writing it, none of it
fixed: the USB controller driver matches QEMU's controller only; the
production build shows no prompt without a thumbdrive login; there is no
USB keyboard driver and no disk driver but virtio; on the Pi 5 the console
writes every character to QEMU's UART address, which is RAM there; on the
Mars the console's UART register layout is probably not the board's; the
board images cannot build the v4 node.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
