Hardware facts from the 2026-08-11 bench session: the DRV8825 drivers
can come out of a 40 V rail power-up unserviceable (playback and
counters run, motors dead; recovery is a longer true power-off, at
worst a machine power cycle) - so counters/anchors are never proof of
motion and the rail stays up. The head accelerometer is the motion
truth (device mapping, bench-characterized thresholds, read-rate
limits), and every probe move goes +X first - a cable lives at the
end of left travel.
The controller lifecycle belongs to the forgectrl supervisor (it
spawns the selected controller as a direct child); the init script no
longer starts grblHAL and remains only as a manual emergency stop.
BRINGUP item 2: grbl-mode laser software implemented + bench-verified
without fire (record in the gate list); first light pending.
LIGHTBURN.md: arming/button-press operation, S-max 1000, fire gates.
scripts/bench/laser_stream_test.py: host-side stream-dump contract
verification against the null-sink build.
The cloud-action-surface branches are merged: forgectrl builds from main
(same revision), and the forgefirm-app include pins the python3-gfhardware
master head (adds docs/CLOUD.md and the clean-shutdown gfhome).
gfhome.py, ffmachine.py, and gfcloud.py (with the gfcloud init script
and gfhome conf sample) live in the python3-gfhardware repository's
forgefirm-app/ directory. The three recipes fetch that repo through a
shared include (forgefirm-app.inc) carrying a single pinned SRCREV,
replacing the local file:// copies. Package names, dependencies, and
installed paths are unchanged.
ws_connect() returns the running WsClient, so gfhome no longer needs to
build the client by hand to get a clean disconnect; the exit path uses
WsClient.shutdown() to stop and join the socket thread.
Points the forgectrl recipe at the pushed cloud-action-surface commit
(controller_mode=cloud + the compatibility banner) so a test image
carries the cloud-mode UI. Repoint to main once the branch is merged.
Enable the read-only firmware-version probe and point it at
/data/forgefirm/gf-latest.json, where the web-service client records the
latest firmware Glowforge advertises and the version this release was
tested against. forgectrl reads that file for the cloud-mode
compatibility banner.
gfcloud runs the machine under the Glowforge web service (the factory
cloud experience: the app drives homing, framing, printing). Its init
service starts it only when controller_mode = cloud - mutually exclusive
with grblHAL, which already stands down for that mode - so it owns
/dev/glowforge exclusively. Persistent GFUIService loop with a clean
SIGTERM shutdown that safes the hardware; the init script mirrors
grblhal.init. The image installs gfcloud and python3-ffmachine.
Extract the shared-config identity overrides and the forgectrl-routed
ForgectrlMachine from gfhome into an installed module (python3-ffmachine);
gfhome imports it instead of carrying its own copy, so the coming gfcloud
daemon builds the same machine the same way.
Record the Glowforge service/firmware version each release validated
cloud mode against, kept distinct from the version cloud mode advertises;
forgectrl reads it to warn when the live service has moved past it.
Replace the local dispatch table with gfutilities' dispatch_action
(allow_print=False), so the homing runner and GFUIService share one
action surface and cannot drift.
b5c6d9c declares the shared config readers in glowforge_homing.c;
without the declaration the hard-float build read the homing-session
timeout from the wrong register and SIGTERMed every gfcloud homing
runner ~55 ms after spawn.
Bump to the forgectrl revision whose startup pass reloads
regulatory.db (required while the flashed kernel still has built-in
cfg80211 - its boot-time load fails pre-mount and stays failed
without a reload), hints a region only when one is set (unset =
automatic: the AP's 802.11d country, else world; a 00 hint over the
kernel's own world default reports the confusing intersection alias
"country 98"), and pins wlan0 power save off.
BRINGUP.md: bench record for the wireless-regulatory diagnosis and
the live-verified wifi_country / power-save flow; the kernel-batch
note now carries CFG80211/MAC80211=m, DEFAULT_PS off, and the lm75
vs-supply.
Bump to the forgectrl revision that adds the wifi_country setting
(System-tab region picker); the daemon applies it with iw reg set at
startup and on change, so iw joins RDEPENDS. regulatory.db itself
ships via the glowforge-image base (wireless-regdb-static).
Before writing the target slot, the installer now shows what it holds
(factory firmware v<ver>, ForgeFIRM, an unrecognized filesystem, or
unknown/unreadable content). Factory images are archived as before;
anything else requires the operator to type ERASE, since it is
overwritten without a backup. The archive manifest now records the
semantic FIRMWARE_VERSION (ver=), which the update manager displays in
the restore list. Bump forgectrl to the matching GUI change.
A factory slot's displayed version is now the semantic FIRMWARE_VERSION
from /etc/build (e.g. v2.6.0-2228) rather than the build datetime in
/etc/version - what the factory itself calls the release, and what the
update-manager GUI shows for each slot. The datetime still orders
releases for the -e newest-factory selection (a monotonic counter;
mashing the semantic version's digits would misorder a major-version
rollover). Bench: slot shows v2.6.0-2228, -e picks it correctly.
/etc/forgefirm/keys ships the ForgeFIRM release-signing public key
and the Glowforge factory keyring (public keys only) - the update
manager verifies release downloads/uploads against the former and
factory archives against the latter. forgectrl SRCREV bumped to the
update-manager commit; runtime deps on ffboot, fwup, the keyring, and
curl made explicit.
The embedded pubkey is the production key from the signing ceremony;
release.sh's key-match gate now refuses any other signer. Verified:
production-signed archives pass fwup 1.16 and the factory's 0.14.2;
dev-signed archives are rejected.
The runbook no longer records the bench machine's fuse identity (a
fuse identity cannot be rotated, so a public document must never
carry it); the forgectrl pin follows that repo's history rewrite.
Proves a fresh clone builds the release image on a hosted runner
(sibling checkouts for meta-openglow and the kernel-module externalsrc,
rm_work to fit the disk budget) and publishes artifact checksums for
comparison against locally built releases. Never produces release
artifacts - releases are built and signed on the maintainer's host.
Gates (clean tree, version single-source across FORGEFIRM_RELEASE /
rootfs stamp / .fw meta-version / tag, rootfs-vs-slot size with early
warning, installer-embedded pubkey must match the signing key,
factory-era fwup verification of the packed archive), then build,
pack, sign, checksum, and stage forgefirm.fw + sha256sums.txt +
forgefirm-image-glowforge.rootfs.wic.gz with the gh publish command
(--publish runs it where gh is authenticated). release.sh --dev packs
a dev-key-signed forgefirm-dev.fw from the release rootfs for the GUI
upload path. Signing keys are always passed explicitly - no defaults.
kas/README release order and the plan doc updated to match.
The image's fstab keeps the factory slots mounted under /factory, and
busybox mount's auto-type iteration against an already-mounted ext4
device provokes a cosmetic kernel 'Can't open blockdev' for each
foreign-type claim (reproduced and pinned on the bench: ext3-typed
mount of an ext4-held device prints it; ext4-typed does not). Probes
now reuse an existing mountpoint from /proc/mounts and mount fresh
targets with an explicit -t ext4.
Documents the new installer: A/B slot install with no repartitioning,
factory archives to /data, signature-verified forgefirm.fw, ffboot
switching, offline install, and the automatic legacy-layout
migration.
The image's busybox has no blockdev applet, so the grow path silently
skipped. Sector counts now come from /sys/class/block (no external
tool); log lines also go to /dev/kmsg so migration results are visible
in dmesg after boot.
Newer factory firmware's generic /etc/fw_env.config points at the
wrong device; its per-device /etc/fw_env_mmcblk2.config is the correct
one for the eMMC environment. The read-back verify caught the failed
write and aborted before the flip, as designed.
dd|gzip runs backgrounded while the installer prints compressed MB
every few seconds (old busybox dd has no status=progress); dd's exit
status is captured through a file so a device read failure is not
masked by gzip succeeding on truncated input.
The gf_hostname override is gone (the forgectrl UI no longer offers
it): the hostname is a pure derivation of the serial - base 23 over
the factory consonant alphabet - so a gf_serial override re-derives
MACHINE.HOSTNAME and the fuse derivation stands otherwise. BRINGUP
records the panel rework (units, fuse identity, always-on position)
as offline-verified; board deploy and pin bumps held during the
firmware-upgrade bench testing.
Newer factory firmware (2024) has no /factory/imgN mounts and a
read-only rootfs, so slot probing and post-write verification mount
under /tmp, with the active slot read from the running root. The
target-slot unmount sweeps /proc/mounts (older firmware DOES mount the
slots). A failed ffboot download keeps an existing /data/ffboot
instead of aborting, so a local-.fw install works fully offline.
install-forgefirm.sh is now single-stage and never repartitions: run
from factory firmware, it archives every factory slot version plus the
recovery boot partitions to /data/forgefirm/archive (manifest with
md5s), verifies the signed forgefirm.fw against the embedded ForgeFIRM
pubkey (raw 32-byte form for the factory's fwup 0.14.2; dev key until
the production key ceremony), applies it to the INACTIVE slot with the
factory's own fwup, post-verifies the written rootfs, installs
/data/ffboot, and flips the saved env with read-back verification. The
booted factory slot stays installed and bootable; /data is untouched
beyond the archive. Fixed release asset name forgefirm.fw (version in
the fwup metadata and release tag).
slotmigrate (new recipe, rcS before mountall) reclaims the legacy
layout on eMMC-slot boots: deletes p4, grows p3 to the end of the
disk (sfdisk + partx BLKPG - works with a sibling partition as root),
then e2fsck+resize2fs. Every step is keyed off the actual disk state,
so interrupted runs resume and factory-layout disks are a no-op; SD
boots never touch the eMMC.
Basic/Plus share the passive closed-loop cooling and the 60-75 F
window per Glowforge's tech specs and owners-forum consensus; the
Pro's solid-state TEC buys 60-81 F. Spec-level only - tec_present
stays a user setting regardless, since tec_on has no readback.
Low side: factory floors (CM* window minimums ~1-4 C, the ~16 C
'warming up' operating floor) and the planned cool_temp_min /
cool_temp_start keys with a heater-driven warm-up phase. TEC:
presence is undetectable (tec_on is write-only, Pro-only hardware on
a common board) so tec_present becomes a user setting, with
hysteresis control toward the factory ~18 C setpoints when enabled.
-l inventories every bootable partition (SD, eMMC slots 1/2, legacy
p4) as machine-parsable key=value lines: firmware type
(forgefirm/factory), version, kernel presence, booted/next markers,
plus the saved-env selection - the shared probe for the installer and
the forgectrl update manager.
Boot switching now writes all four selection variables (mmcdev,
mmchwpart, mmcpart, mmcroot) in one fw_setenv -s transaction and
read-back verifies, falling back from the libubootenv script format
to the classic u-boot-tools format to per-variable writes - the same
script works on factory firmware and ForgeFIRM. mmchwpart was
previously never set and a mixed env could survive a mid-flip power
cut. Switch targets must pass a content probe (rootfs mounts, kernel
present) unless -f. -e picks the newest factory slot by probing,
excluding slots occupied by ForgeFIRM.
The new ffboot recipe installs it as /usr/sbin/ffboot with
/etc/fw_env.config (factory-identical redundant env layout at eMMC
0x80000/0x82000) - previously the image shipped fw_setenv with no
config. Added to forgefirm-image.
Slot-agnostic boot proven on the bench: the same release ext4 boots
from SD and from eMMC p4 steered by the saved env alone. fwup
cross-version compatibility proven; slot-sized rootfs, size gate,
ext4 artifact and mkfw.sh in place. Found for Phase 1: the image
ships no /etc/fw_env.config.
The release image now targets the 200 MiB factory eMMC slot: content
plus 40 MiB working space, hard build failure past the slot size. The
raw ext4 is deployed alongside the wic; scripts/mkfw.sh packs it into
a signed .fw with factory-pattern upgrade.a/upgrade.b tasks. fwup
1.16.0 recipe (applies ForgeFIRM and Glowforge-signed archives on
device) is installed in both images. Dev images stay SD-sized with a
256 MiB working margin and no ceiling.
Verified on the 20260808153331 build: release ext4 180.8 MiB; signed
.fw applies byte-exact with fwup 1.16.0 and with the factory's 0.14.2
(raw-format pubkey), and 0.14.2 -V verifies the signature.
ScottW514