Four independent blockers sat between "the image boots UTSM" and "the desktop
comes up". Each one wedged the boot on its own; all four are fixed here and the
tree now reaches "[desktop] desktop ready" under QEMU/OVMF
(evidence: .build_tmp/d2.log).
1. FirstInit made networking a hard gate (CODE/firstInit/main.c)
The setup wizard always showed the network page, and on a machine with no
wireless device the only exit was Save - pressing Connect raised NET-E01.
Networking is not a precondition for entering the system, so a wizard that
cannot be completed without it is a plain design defect.
- No wireless device detected -> skip the network page entirely (the
g_no_wireless_device flag already existed but was only logged).
- With a device present, add a Skip button (draw + mouse hit-box + keyboard
Enter), mirroring "I don't have internet" on Windows.
- Connect keeps its zero-fallback NET-E01 panic: the unimplemented path is
still honest, it just no longer holds the user hostage.
2. ESP cluster size left no room in the root directory
(CODE/linux/pack_system_image.sh)
With the cluster size left to mkfs it chose 1 sector, i.e. 16 directory
entries per cluster. The ESP root ends up holding exactly 16 entries
(DESHABBOOT/EFI/LIMINE/BOOT/DRIVER/SYSTEM/USER/NVVARS plus one long-name
entry each), and the root chain is a single cluster - so on first boot the
DSK could never write USER.CONF.
Pin -s 4 (2KiB, 64 entries): it clears the FAT32 65525 lower bound and the
0xFFF5 boundary that -s 8 lands on at this 256MiB size, and leaves 48 free
entries. The alternatives were measured, not guessed (see the comment).
3. DSK could not grow the root directory (CODE/dsk/main.c)
fat32_write_root_file returned -4 "no free dir entry" whenever the scan of
the root chain came up empty. A FAT filesystem is supposed to extend the
directory chain, so allocate a cluster, link it at the current tail, write
the entry there and commit the FAT. Fixing only (2) would have papered over
this: any real disk whose root fills up would still fail the same way.
4. Nothing generated the CJK bitmap font packs (build.ps1)
The desktop loads system/font/simhei_16.dbf and panics DESK-E04 FONT PACK
MISSING without it. The .dbf files are generated from simhei.ttf by
CODE/font/mkfont.py and are gitignored, but no build step ever invoked it -
same class of bug as the previously untracked .drv binaries. Generate
simhei_16.dbf / simhei_24.dbf in build.ps1 (with the existing WSL python3
fallback for Pillow), rebuilding only when the TTF is newer than the pack.
docs/STATUS.md updated to match: FirstInit wizard and the D3 named API export
table move to done, and the FAT32 / ESP cluster size / CJK font pack entries
are added or corrected. D3 was already fully implemented (table, lookup,
selftest with positive and negative cases, TST-E21..E24 instrumentation) -
only the status row was stale.
Verified boot chain (QEMU/OVMF, dev variant):
BdsDxe -> Limine -> UTSM -> DKM 17/17 -> DSK -> FirstInit (network page
skipped) -> USER.CONF written -> login (password accepted) -> desktop:
"[zhfont] dbf loaded (16px ok)" ... "[desktop] desktop ready"
STATUS.md/TASKBOARD.md under-reported several subsystems that are in fact
implemented. Corrected against the code and against a clean QEMU boot log
(.build_tmp/qemu_final.log, this branch).
- 页表映射接口 was ⬜ "mmio 通用映射待做". It exists and is in use:
kernel_api.mm_map_mmio / mm_unmap_mmio (PCD|PWT independent window), called
by apic, ehci, xhci and nvme, including BARs above 4G. -> ✅
- NVMe was 🔶 "PCI discovery only, BAR0>4G 待映射". CODE/DKM/nvme/nvme.c is
1641 lines: admin SQ/CQ with phase bit, IDENTIFY, IO queue (qid=1), read/
write/flush, cross-page PRP lists, MSI and MSI-X (vector allocator, IDT pool
0x40-0xDF), block provider registration, NVME-E01..E03 zero-fallback
instrumentation. -> ✅
- virtio_net was 🔶 "PCI/capability 枚举, 无 virtqueue". It has a legacy
split-ring virtqueue (desc/avail/used), vq_setup, 32x2048B RX buffers, TX/RX
rings and a DHCP DISCOVER->OFFER selftest. -> ✅
- ELF64 .drv loading said 14/14. build.ps1 now compiles all 17 drivers listed
in manifest.json (fixed on this branch; nine were never built since 055c521
untracked the .drv binaries). -> 17/17
- FAT32 (DKM side) stays 🔶 but the boundary was wrong. It is read-only
BPB/FAT/dirent parsing plus a root-directory walk, with no filesystem API
layer (no open/read/stat) - not "子目录路径待完善". The large-disk read/write
path lives in the DSK-side FAT32 implementation.
- TASKBOARD 遗留工程债: vector allocator/MSI-X, NVMe high BAR MMIO and
virtio-net virtqueue RX/TX are done. The remaining FAT32 item is reworded to
what is actually missing (the FS API layer).
Evidence for the driver/NVMe/virtio rows is the boot log on this branch:
14x "[<drv>] driver ready", and with no NVMe controller / virtio-net device
attached the drivers correctly log a warning and still reach "driver ready"
(designed fallback, both listed in the CLAUDE.md whitelist).
- desktop boot screen: typewriter effect removed, whole screen drawn in one pass
- login: ohMyLogo (DEAICUP lotus, 288px embedded) intro screen before password card
- strict error policy instrumentation (zero degradation): login LOGIN-E01..E05 (integrity/badctx/noconf/nouser/nohash) and desktop DSK-E01 now full-screen fatal with symbol + halt instead of silent skip
- root-cause fixed: missing .build_tmp/mkfat32.ps1 silently left SATA sidecar stale (login.elf 'not found' degradation) - replaced with CODE/linux/make_sata_sidecar.sh (auto adaptive FAT32 rebuild each build)
- recreated lost CODE/login/patch_login_hash.ps1 (.text SHA256 -> .hashseg)
- dev config now full flow: show_logo=1, wizard+login enabled, dev shell off
- test/gen_chacha_kat.py emits KAT from RFC 8439 section 2.4.2 mapped to the impl's 64+64 counter/nonce layout; expected bytes cross-checked against pycryptodome (independent impl) and the official vector: 10f1e7e4d13b5915... byte-exact
- verdict: the 'intermittent chacha20 KAT FAIL' referenced in FUCK comments was a phantom — that test was never merged into this tree; the implementation itself matches RFC byte-for-byte
- selftest now runs KAT + page-MAC determinism checks at selftest=2; full SELFTEST PASS in QEMU (.build_tmp/qemu_serial_u5kat.log)
- drr_apply_config(pool_kb, log_size) before drr_init; pool_limit clamped to compile-time 64KB static pool (min sub-buffer layout enforced, defaults kept on bad values); recovery log size clamped to remaining pool
- verified in QEMU: pool_kb=32 -> pool_limit=0x8000, log_capacity=0x80, boot continues (.build_tmp/qemu_serial_r3b.log)
- panic screen now draws embedded ohMyLogo.png (384px RGBA, gen_panic_logo.py); background color sampled from image corners so screen bg matches logo bg
- F2: include/utsm/fbcon.h unified framebuffer console (pixel/blend/fill/rgba-image/text with FBCON_HAVE_FONT opt-in); panic.c migrated onto it
- build.ps1 regenerates panic_logo_data.inc when ohMyLogo.png changes
boonxiong2