rajamesandClaude Opus 5.5
3b49cb15a2
Captain Bob, 2026-10-14: "change to PC, not SER5. it's not supposed to be specific, but PC generic." boards/ser5 -> boards/pc, TARGET=PC, lithos-pc.img; the image was never specific to one machine (the generic UEFI/ACPI path, FABRIC-3 III). The Beelink SER5 stays named where the text means the unit on the bench (its Secure Boot, BIOS, serial header) and in the records. Built: lithos-pc.img, system=v4, with its SBOM. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
boards/
One directory per physical target. make boot_image TARGET=<NAME> (repo root) maps the
name to a directory here, reads its board.mk, and builds the single file that goes on
that board's boot medium into build/boards/<board>/.
| TARGET | Directory | ISA | Boot path | Image |
|---|---|---|---|---|
PC |
pc/ |
amd64 | UEFI firmware, removable-media path -- any x86-64 PC | GPT + FAT32 ESP: EFI/BOOT/BOOTX64.EFI |
RASPI |
raspi/ |
aarch64 | Pi 5 EEPROM firmware, native | MBR + FAT32: config.txt, kernel_2712.img, bcm2712-rpi-5-b.dtb |
MILKV |
milkv/ |
riscv64 | SPI-flash U-Boot + OpenSBI, bootefi |
GPT + FAT32 ESP: EFI/BOOT/BOOTRISCV64.EFI |
ZYNQ7020 |
zynq7020/ |
armv7 | BootROM, BOOT.BIN, U-Boot |
not yet: needs kernel/src/arch/armv7 |
board.mk sets:
BOARD_DESC: one-line description (make boards)BOARD_ARCH: kernel ISA (kernel/src/arch/<arch>)BOARD_BOOT: image recipe inkernel/Makefile(uefi-esp,rpi-native, ...)BOARD_IMAGE: output file name
Disk images are assembled by scripts/mkdiskimage.sh, which needs no root access and no loop
devices. KERNEL_ARGS="..." is written as starforth.cfg (UEFI boards) or cmdline.txt
(Pi 5, where the firmware copies it into /chosen/bootargs). BOOT_IMAGE_SIZE_MIB sets the
image size; the default is 128.
Hardware status: none of these images has been booted on real silicon from this build. The
PC image has been booted in QEMU (q35 + OVMF, from its own disk) through POST. (PC was named
SER5 until 2026-10-14, after the first PC on the bench; the image was never specific to it.) The Pi 5
native path (raspi/README.md) and the JH7110 peripherals have still only been checked by
compiling.