rajamesandClaude Opus 5.5
e177c5c6b3
The stick's increment 3, Task 1 (docs/v4.0.0/plans/2026-10-27-stick-3-images.md; STICK.md 4). make boot_image TARGET=PC now writes the 2 GiB stick: ESP 64 MiB (BOOTX64.EFI, startup.nsh, starforth.cfg), StarshipOS identity 500 MiB (zeros), StarshipOS Artemis to the end. make -f kernel/Makefile ARCH=<arch> datastick writes the 1.5 GiB data stick, identity and Artemis, fresh every time. Sizes in kernel/Makefile; every partition on whole MiB. tools/mkartemis formats and signs an Artemis partition at build with the kernel's own code -- v3's block_subsystem.c (blk_subsys_confirm_format) and artemis_sig.c (artemis_sig_genesis_stamp) -- through a blkio device over a byte range of the image; --check reads one back the same way (read-only). disk_uuid from getrandom(2): each image its own. mkdiskimage.sh gains --starship, --mkartemis, --esp-mib; Milk-V and the Pi images are unchanged. The kernel is not changed. Red: scripts/check_images.sh FAIL (no datastick, the PC image one partition). Green: 23/23. Mutation: --check on a range shifted by one block fails. Accepted: suite EXIT 0; 133146, 133417, 133815, POST 538/538, dict_hash 0xfec8c47cfc6f437f; test-32, 0 failures. 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.