Files
Oleksandr Shyshatskyi 80a4d64ffd Prepare next firmware release
Add Fluidd and custom boot scripts, migrate DC24V control, update the web UIs and filament macros, improve startup status reporting, and expand upgrade and replica coverage.
2026-09-24 11:37:28 +03:00

5.6 KiB

Upgrading, and your files

A newer release installs exactly like the first flash: stick in, power on. Nothing you have set is asked for again. This page is the line between the files that are yours and the files the mod overwrites without asking, because that line is what makes an update safe.


Your files and the mod's files

File Whose
/usr/data/anvil-data/config/printer.cfg Yours — preserved across updates. The installer removes FlashForge's obsolete [output_pin DC24V_CTL] once; overrides otherwise stay here after the includes.
/usr/data/anvil-data/config/moonraker-custom.conf Yours — created once, never rewritten, included last so your settings win. Do not delete it.
/usr/data/anvil-data/scripts/*.sh Yours — custom boot scripts, preserved across updates.
ff-*.cfg, printer.base.cfg, moonraker.conf The mod's — overwritten on every update; do not edit.
anvil/helixscreen/config/settings.json Yours — everything you set on the screen. Written by HelixScreen itself; carried across updates along with helixscreen.env and its spool map.

Two config directories, and only one of them is live. /usr/data/anvil-data/config is Reforge's, and it is where everything now lives: your printer.cfg, moonraker.conf and moonraker-custom.conf, and the ff-*.cfg set. Klipper and Moonraker both read it, and it is what Mainsail's config editor shows you.

The first install copies your printer.cfg and the config files beside it out of FlashForge's /usr/data/config, and nothing writes to that directory afterwards. That is what makes going back to stock work; see below. If you edit a config by hand over ssh, edit the copy in /usr/data/anvil-data/config — the file of the same name in /usr/data/config is the frozen stock one and changes nothing.


Upgrading

A newer release installs exactly like the first flash: stick in, power on. Your printer.cfg with its saved calibration, moonraker-custom.conf, your root password and everything you set on the screen survive; the ff-*.cfg family is replaced. If a release changes helixscreen.env, yours is kept and the new one is left beside it as helixscreen.env.mod-new.

Custom boot scripts under /usr/data/anvil-data/scripts survive too. The payload itself lives under /usr/data/anvil and is replaced as a unit, so do not put user files there. See Custom boot scripts.


The config files in detail

The .cfg includes are wired up for you: printer.base.cfg ends with the seven [include ff-*.cfg] lines, so a flash brings the mod up by itself. Your printer.cfg is not touched. The factory dock and nozzle numbers are pulled in for you too: on the first boot after the flash, [ff_legacy] imports firmwareExe's per-unit JSON and persists it with its own SAVE_CONFIG, so Klipper restarts once, right after coming up — before the screen is on its feet. TOOL_OFFSET_STATUS afterwards should show a nozzle triple for every tool and no NOT CALIBRATED.

The included files are the mod's, and every update overwrites them without asking — ff-*.cfg and printer.base.cfg alike. Do not edit them. Put changes at the end of printer.cfg, restating only the option or macro you are changing: Klipper merges same-named sections and the last value wins, so everything you leave out keeps the shipped value and your overrides survive every flash. Each of those files opens with a header saying as much.

moonraker.conf is mod-owned too — it is overwritten on every update, which is how the [webcam] block and the API lockdown reach the printer. Its seam is moonraker-custom.conf beside it: created once, never written again, and included at the end of moonraker.conf, so anything you set there wins. Do not delete it — Moonraker treats an include that matches no file as fatal and will refuse to start. An empty one is fine.

Editing moonraker.conf itself does not survive: the next update overwrites it, and that is how the [webcam] block and the API lockdown reach your printer. Put the change in moonraker-custom.conf instead.


A FlashForge OTA update is a different thing

Everything the mod installs is under /usr/data/anvil on the data partition, the klippy tree and its extras included, so an OTA cannot delete them. What it does rewrite is /usr/prog, and with it the firmwareExe the mod boots from — so re-flash the mod after a firmware update. The #*# block in printer.cfg survives either way.


Going back to stock

Flashing the stock FlashForge package for your model is the uninstall — it installs the same way, and it restores /usr/prog, which is everything the mod replaced there.

It works because the mod never wrote to FlashForge's config directory. /usr/data/config still holds the stock printer.cfg, the stock printer.base.cfg and the stock includes, so a stock firmware boots on the config it expects. The mod's own directory is left behind on the data partition and stock ignores it.

The cost is the other half of that sentence: the calibration and the config edits you made while the mod was installed live in /usr/data/anvil-data/config/printer.cfg, and the stock firmware does not read them. Going back to stock returns the machine to the printer.cfg it had before you flashed the mod. Nothing is deleted — flash the mod again and your tuned copy is still there, exactly as you left it.

The one thing a stock flash cannot bring back is FlashForge's Moonraker, which the stock package does not carry: the mod's build stays, it works, and Mainsail is happy with it. The details, and the ladder below it, are in Support.