Simple, kernel-only, 64bit OS, early stage. https://git.2137697.xyz/rs-dos/atom?h=qemu 2026-11-01T14:53:29Z 2026-11-01T14:53:29Z salmonik salmonik@tuta.io 2026-11-01T14:53:29Z urn:sha1:7958276c9f0d230053520ba20f2a00f5ecda18e4 `make` did not parse at all (missing separator at line 139), so every make target was dead. The folder also carried three overlapping launchers (boot.sh, qemu.sh, boot-image.sh) plus a fourth partial one in the Makefile, `cargo build --package rsdos` copy-pasted eight times, the QEMU invocation copy-pasted per script, and the test helpers (fail/wait_log/wait_qemu_exit/qemu_hmp) duplicated in five tests. New layout: - scripts/lib.sh: single config (image, OVMF, mem/smp), the one cargo invocation (build_all), the one QEMU shape (qemu_args), and the test harness (test_boot, wait_log, wait_qemu_exit, qemu_hmp, sendkeys) - scripts/build.sh: kernel + every bins/* in one pass - scripts/mksystem.sh: freshness-aware image build that now stages every bins/*.efi into /bin/cli|gui (they were never copied before) - scripts/run.sh: build + stage + boot in one command; --headless, --debug (GDB stub), --monitor (HMP socket), --fresh, --mem/--smp/ --bios/--image; on Wayland it auto-selects XWayland plus grab-on-hover so the mouse can be captured (Ctrl+Alt+G toggles) - scripts/tests/: the five automated tests on the shared harness - deleted: boot.sh, qemu.sh, boot-image.sh, lib-boot-args.sh, build-image-release.sh, build-bootloader.sh (rsboot chain dropped) The Makefile is now a thin wrapper: make run, make test, make system, make inspect, make help. Two-command flow: ./scripts/build.sh then ./scripts/run.sh (run.sh alone also works). Stale test assumptions fixed so the suite is green again: test-gfx waited for "gfx: check" while the shell prints "gfx check: PASS"; test-mouse/test-msg hardcoded msgrecv = task 3 (wm-input took slot 3 — ids are parsed from the log now); the queue-full probe targeted task 0, whose exec pump drains its own queue as completion codes (moved to the cursor task, which never recvs). Verified in QEMU: make test -> test-disk, test-gfx, test-mouse, test-msg, test-fault all PASS. 2026-08-27T16:35:59Z salmonik salmonik@tuta.io 2026-08-27T16:35:59Z urn:sha1:acd0fe1bc38746f36fff24a7497041e5c5010977 boot.sh: replace esp/ + DISK_IMG with single SYSTEM_IMG on ide.0 (hooks into mksystem.sh --force for auto-staging). boot-image.sh: delegate to mksystem.sh --chain (build-image.sh deleted). build-image-release.sh: delegate to mksystem.sh --chain --gpt. qemu.sh: flexible launcher uses SYSTEM_IMG; --chain flag for full-chain build. test-disk.sh: drop ESP_DIR (mksystem.sh stages everything). test-fault.sh: boot system.img on ide.0 + CRASHLOG stick on ide.1; replace deleted mkdisk.sh with inline mkfs.fat. test-gfx.sh: system.img on ide.0, stage via mksystem.sh. test-mouse.sh: system.img on ide.0, stage via mksystem.sh. test-msg.sh: system.img on ide.0, stage via mksystem.sh. Makefile: remove stale build-image.sh/mkdisk.sh references from help; image target delegates to mksystem.sh --chain. All scripts syntax-checked (bash -n). build-image.sh and mkdisk.sh no longer referenced anywhere. 2026-07-31T19:29:49Z salmonik salmonik@tuta.io 2026-07-31T19:29:49Z urn:sha1:3997ec4d2d7d6f69b08d0c04ce8de0df03c52a45 The kernel previously started only AHCI port 0, so any launch where the firmware/QEMU put something else on port 0 (e.g. the ESP from an implicit -drive file=fat:rw:esp) left the real disk unnoticed: 'unsupported sector size 0' and no mount. - ahci.rs: enumerate CAP.NP/PI ports, start every port that links up (empty ports settle at DET=0 and are skipped quickly), keep up to 8 disks, and expose disk_count()/select() for the filesystem - fat.rs: try each disk in port order and mount the first valid FAT32 volume; non-FAT disks are logged and skipped - scripts/boot.sh: attach the data disk on ide.0 and the ESP on ide.1 (DISK_IMG env var, default /tmp/disk.img), matching the Makefile - Verified with the disk on port 0 (Makefile style), port 5 (old-style command line), and with the ESP on port 0; fsck.fat stays clean 2026-07-31T17:53:53Z salmonik salmonik@tuta.io 2026-07-31T17:53:53Z urn:sha1:dc23d2f22cafeb6b97ba460789a834a6c586314d - ahci.rs: polling AHCI on PCI class 1/6/1, bus mastering + ABAR map, port 0 up, IDENTIFY + READ/WRITE DMA EXT through one 4KiB DMA buffer - fat.rs: BPB parse, whole-FAT RAM cache with write-back to both copies, LFN read/write, dirs, multi-cluster files, FSInfo free-count sync, space-padded dot entries ('..' = cluster 0 under root), fsck-clean - fs.rs: /disk mount node + 24-slot ephemeral node pool; ls/cat/hexdump/ echo/mkdir/touch/rm/edit all work on disk paths unchanged - QEMU: explicit bus assignment (disk=ide.0, ESP=ide.1); the implicit fat:rw:esp drive was stealing AHCI port 0 - Debugged against QEMU source: header DW0 is CFL in bits 4:0 / PRDTL in bits 31:16 (Linux libahci layout), FIS count at bytes 12-13, device at byte 7; QEMU rejects H2D FIS flags bits 6:4, so direction is the header W bit only - Verified: full shell round-trip on /disk, reboot persistence (poweroff then mdir/mtype and a fresh boot), fsck.fat clean 2026-07-31T01:22:20Z salmonik salmonik@tuta.io 2026-07-31T01:22:20Z urn:sha1:0ace22d6f88692883584119c64ff010f4cee6738