Rebase on upstream Elegoo 1.4.46 firmware, adding CANVAS support by pdscomp · Pull Request #94 · OpenCentauri/cc-fw-tools

pdscomp · 2026-05-25T22:20:59Z

Updated patched firmware rebased to 1.4.46 (now with Canvas support!)

Firmware installs, runs, and prints! Upon testing load filament doesn't seem to work, not sure if this is a bug in binary patches or deficiency in 1.4.46 on non-canvas OG Elegoo toolhead board.
Replace Entware with latest version of Kipware (optimized for hard float optimizations).
Also added 'flash' and 'switch-to-cosmos' scripts to base to make swapping between builds more easier!

Known issues:

Running filament load appears to not function correctly on OG Elegoo mainboard. Not sure if this is a stock 1.4.46 issue or a issue with the binary paches, need to test more. Need someone to try with Canvas installed. For stock toolhead board, just heat up nozzle manually and command extrusion while pushing filament in to load.
TODO: Maybe fix this in a binary patch?

Need to test out binary patches:
[X] Port chamber light gcode patch (tested by PD, works!)
[ ] Port allow uploads during printing patch
[ ] Port OTA updates patch
[ ] Port do-not-block Z offset patch
[ ] Port allow API during printing patch
[ ] Port wait-for-chamber-temp patch
[O] Port report filament usage patch (patch is printing to log, so it is likely working but couldn't fully test)
[ ] Port disable exhaust fan patch
[ ] Port block connectivity check patch
[X] Load/unload filament fixes targeting OG toolhead board (tested by PD, works!)
[ ] Load/unload filament fixes targeting OG toolhead board, make sure doesn't break Canvas toolhead board

…d flash and switch-to-cosmos scripts

…o allow selection of different patches, added README.md for each binary patch version since approach might be different.

…d 1.4.46 firmware and resolve some bugs

Copilot

Pull request overview

This PR rebases the patch set onto Elegoo Centauri Carbon firmware 1.4.46 (and partially 1.4.44) while porting multiple existing binary patches and updating the bootstrap tooling to support the newer firmware layout and “CANVAS” workflow.

Changes:

Port/extend multiple cc1-app binary patches to 1.4.46, updating patch scripts to select version-specific .bsdiff payloads.
Replace the older OpenCentauri entware bootstrap flow with a Kipware bootstrap flow, and add device-side flash / switch-to-cosmos helpers.
Update build/config tooling and metadata to default to 1.4.46 and recognize new compatible versions.

Reviewed changes

Copilot reviewed 45 out of 80 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
oc-patches/services/bootstrap-oc/switch-to-cosmos	Adds a helper to download a COSMOS/OpenCentauri `.swu` and flash it.
oc-patches/services/bootstrap-oc/patch.sh	Updates bootstrap patching to fetch/verify Kipware and install flash helpers + versioned kmods.
oc-patches/services/bootstrap-oc/OpenCentauri/root/.profile	Adds login shell redirection for legacy OpenCentauri root home content.
oc-patches/services/bootstrap-oc/OpenCentauri/root/.bash_profile	Adds PATH augmentation for legacy OpenCentauri root home content.
oc-patches/services/bootstrap-oc/OpenCentauri-bootstrap.tar.gz	Removes the previous OpenCentauri bootstrap tarball (LFS pointer).
oc-patches/services/bootstrap-oc/oc-startwifi.sh	Updates Wi-Fi bring-up flow (modules + udhcpc behavior) and bash shebang.
oc-patches/services/bootstrap-oc/oc-bootstrap	Switches bootstrap runtime from `/opt` entware to `/kip` Kipware and adjusts services.
oc-patches/services/bootstrap-oc/mount_usb_daemon	Updates shebang to use env bash.
oc-patches/services/bootstrap-oc/mount_usb	Updates shebang to use env bash.
oc-patches/services/bootstrap-oc/flash	Adds a device-side SWUpdate “flash” helper that targets the inactive A/B slot.
oc-patches/patch_planner.py	Improves `patch_config` parsing (comments/whitespace handling) using `shlex`.
oc-patches/firmware/uboot-patch/patch.toml	Extends U-Boot patch compatibility to 1.4.44/1.4.46.
oc-patches/firmware/uart-patch/patch.toml	Extends UART patch compatibility to 1.4.44/1.4.46.
oc-patches/cc1-app/wait-for-chamber-temp/temp_wait_patch-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/wait-for-chamber-temp/README-1.4.46.md	Documents the 1.4.46 port of the chamber `TEMPERATURE_WAIT SENSOR=box` patch.
oc-patches/cc1-app/wait-for-chamber-temp/README-1.1.40.md	Adds/updates documentation for the 1.1.40 chamber `TEMPERATURE_WAIT` patch.
oc-patches/cc1-app/wait-for-chamber-temp/patch.toml	Marks this patch compatible with 1.4.46 in addition to 1.1.40.
oc-patches/cc1-app/wait-for-chamber-temp/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/report-filament-usage/report_filament_usage_patch-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/report-filament-usage/README-1.4.46.md	Documents the 1.4.46 port of the filament usage JSON patch.
oc-patches/cc1-app/report-filament-usage/README-1.1.40.md	Adds/updates documentation for the 1.1.40 filament usage JSON patch.
oc-patches/cc1-app/report-filament-usage/patch.toml	Marks this patch compatible with 1.4.46 in addition to 1.1.40.
oc-patches/cc1-app/report-filament-usage/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/ota-updates-patch/README-1.4.46.md	Documents the 1.4.46 OTA update redirection/version-check port.
oc-patches/cc1-app/ota-updates-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 OTA update patch.
oc-patches/cc1-app/ota-updates-patch/patch.toml	Marks OTA patch compatible with 1.4.46 and keeps dependency on connectivity-check block.
oc-patches/cc1-app/ota-updates-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/ota-updates-patch/oc-ota-updates-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/misc-app-patch/patch.toml	Extends misc app patch compatibility to 1.4.44/1.4.46.
oc-patches/cc1-app/do-not-block-z-offset-adjust-patch/README-1.4.46.md	Documents the 1.4.46 port of “always allow Z offset adjust”.
oc-patches/cc1-app/do-not-block-z-offset-adjust-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 Z-offset adjust patch.
oc-patches/cc1-app/do-not-block-z-offset-adjust-patch/patch.toml	Marks Z-offset patch compatible with 1.4.46.
oc-patches/cc1-app/do-not-block-z-offset-adjust-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/do-not-block-z-offset-adjust-patch/no-block-z-offset-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/disable-exhaust-fan-patch/README-1.4.46.md	Documents the 1.4.46 port of the exhaust fan suppression patch.
oc-patches/cc1-app/disable-exhaust-fan-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 exhaust fan patch.
oc-patches/cc1-app/disable-exhaust-fan-patch/patch.toml	Marks exhaust fan patch compatible with 1.4.46.
oc-patches/cc1-app/disable-exhaust-fan-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/disable-exhaust-fan-patch/exhaust-fan-patch-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/block-connectivity-check-patch/README-1.4.46.md	Documents the 1.4.46 port that prevents WAN connectivity check thread startup.
oc-patches/cc1-app/block-connectivity-check-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 connectivity check block patch.
oc-patches/cc1-app/block-connectivity-check-patch/patch.sh	Extends bsdiff application to 1.4.46 using versioned filename.
oc-patches/cc1-app/allow-uploads-during-printing-patch/README-1.4.46.md	Documents the 1.4.46 port allowing uploads while printing.
oc-patches/cc1-app/allow-uploads-during-printing-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 allow-upload patch.
oc-patches/cc1-app/allow-uploads-during-printing-patch/patch.toml	Marks allow-upload patch compatible with 1.4.46.
oc-patches/cc1-app/allow-uploads-during-printing-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/allow-uploads-during-printing-patch/allow-upload-patch-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/allow-api-during-printing-patch/README-1.4.46.md	Documents the 1.4.46 port allowing API status updates while printing.
oc-patches/cc1-app/allow-api-during-printing-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 API control patch.
oc-patches/cc1-app/allow-api-during-printing-patch/patch.toml	Marks API patch compatible with 1.4.46.
oc-patches/cc1-app/allow-api-during-printing-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/allow-api-during-printing-patch/api-control-patch-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
oc-patches/cc1-app/add-chamber-light-gcode-patch/README-1.4.46.md	Documents the 1.4.46 port adding M8212/M8213 chamber light control.
oc-patches/cc1-app/add-chamber-light-gcode-patch/README-1.1.40.md	Adds/updates documentation for the 1.1.40 chamber light gcode patch.
oc-patches/cc1-app/add-chamber-light-gcode-patch/patch.toml	Marks chamber light gcode patch compatible with 1.4.46.
oc-patches/cc1-app/add-chamber-light-gcode-patch/patch.sh	Selects the correct versioned bsdiff based on `FW_VER`.
oc-patches/cc1-app/add-chamber-light-gcode-patch/add-chamber-light-gcode-1.1.40.bsdiff	Versioned bsdiff payload for 1.1.40 (tracked in repo).
install.sh	Fixes the printed follow-up command to re-run `install.sh` instead of `upload.sh`.
fwdl.sh	Adds firmware download URLs and dates for 1.4.44 and 1.4.46.
firmware-editions/patched	Updates the default edition config to use Kipware bootstrap URL/path/SHA256 settings.
firmware-editions/klipper-pi	Updates edition config but currently diverges from new Kipware bootstrap variables.
build.sh	Changes the default firmware version selection to 1.4.46.

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

 check_tools "grep md5sum openssl wc awk sha256sum mksquashfs git git-lfs"

 echo Go into the squashfs-root dir for the rest of the steps!
 cd "$SQUASHFS_ROOT"

-set -x
 set -e

-echo Check MD5sum on OpenCentauri bootstrap
-BOOTSTRAP_PATH="$CURRENT_PATCH_PATH/OpenCentauri-bootstrap.tar.gz"
-MD5_SUM="$(md5sum "$BOOTSTRAP_PATH" | awk '{print $1}')"
-if [[ ! "$MD5_SUM" = "$OC_BOOTSTRAP_MD5" ]]; then
-  printf "MD5 hash of %s (%s) does not match expected %s, aborting...\n" "$BOOTSTRAP_PATH" "$MD5_SUM" "$OC_BOOTSTRAP_MD5"
+: "${KIP_BOOTSTRAP_URL:?KIP_BOOTSTRAP_URL must be set in $PATCHES_ROOT/patch_config}"
+: "${KIP_BOOTSTRAP_PATH:?KIP_BOOTSTRAP_PATH must be set in $PATCHES_ROOT/patch_config}"
+: "${KIP_BOOTSTRAP_SHA256:?KIP_BOOTSTRAP_SHA256 must be set in $PATCHES_ROOT/patch_config}"
+
+#echo Copy over the OpenCentauri bootstrap tarball to /app
+#cp "$CURRENT_PATCH_PATH/OpenCentauri-bootstrap.tar.gz" ./app
+#chmod 644 ./app/OpenCentauri-bootstrap.tar.gz
+echo Copy over the Kipware bootstrap tarball to /app
+wget "$KIP_BOOTSTRAP_URL" -O "$KIP_BOOTSTRAP_PATH"
+chmod 644 "$KIP_BOOTSTRAP_PATH"


+echo 'Add symlink for /lib/modules/ for new kernel ver 5.4.61-${kmod} (harmless for earlier revs)'
 cd ./lib/modules
-ln -sf 5.4.61 5.4.61-ab1175
+if [ "$FW_VER" = "1.1.40" ]; then
+  kmod=ab1175
+elif [ "$FW_VER" = "1.4.44" ]; then
+  kmod=ab1434
+elif [ "$FW_VER" = "1.4.46" ]; then
+  kmod=ab1444
+fi
+echo 'Add symlink for /lib/modules/ for new kernel ver 5.4.61-${kmod} (harmless for earlier revs)'
+[[ ! -z "$kmod" ]] && ln -sf 5.4.61 5.4.61-$kmod


+echo $VERSION
+
 echo "Install Ethernet kmod(s)"
-cp "$CURRENT_PATCH_PATH/kmod/r8152.ko" "$SQUASHFS_ROOT/lib/modules/5.4.61/"
-cp "$CURRENT_PATCH_PATH/kmod/ax88179_178a.ko" "$SQUASHFS_ROOT/lib/modules/5.4.61/"
+if [[ ! -z "$kmod" ]]; then


+    if [ ! -f /kip/etc/entware_release ]; then
+    cd / &&
+        tar zxvf /app/kipware.tar.gz user-resource
+        echo 'Entware is now Kipware, and lives in /kip! Now with more Mudkips...' > /opt/Kipware-Info.txt
+    fi


+        # Enable root login if this is the first boot after installing Kipware
+        sed -re 's/^#PermitRootLogin.*/PermitRootLogin yes/' -i /kip/etc/ssh/sshd_config
+
        # Start entware system services, includes openssh
-        /opt/etc/init.d/rc.unslung start
+        /kip/etc/init.d/rc.unslung start


+# Download firmware
+curl -k -f -S -o "$SWUFILE" -L "$FW_URL"
+
+# Install firmware
+flash "$SWUFILE"
+


@@ -4,7 +4,7 @@
 ### You can edit variables in here to tweak settings in the FW!
 ###



The klipper-pi edition fails because patch.sh requires KIP_BOOTSTRAP_URL to be set in its firmware-edition config, which is currently missing on the 1.4.46 rebase branch. This causes the 'Enable Entware setup, load new kernel modules and more' patch to abort with exit code 1. Comment out the klipper-pi step and its artifact upload so CI can pass on the 'patched' edition alone. Re-enable once KIP_BOOTSTRAP_URL is configured in firmware-editions/klipper-pi. TODO: Re-enable klipper-pi build once KIP_BOOTSTRAP_URL is configured.

Savion · 2026-06-03T03:42:05Z

I am trying to run this on a CC1 with Canvas but it is stuck on the boot loading screen at 100% progress bar. I have ssh so killing /app and running it gives me the following errors:
pin stm32:PA4 used multiple times in config
pin PG8 used multiple times in config
error on temperature_sensor box: max_temp must have minimum of 1.79769e+308 ← max_temp unset (that's DBL_MAX)
bed_mesh: malformed value
error on strain_gauge: bed_max_err must have maximum of 10
error on extruder: pressure_advance_smooth_time must have minimum of 0.02

Is it possible there are some pin overlaps with the canvas pcb vs non?

…ll pointer issue when running this firmware on a non-canvas toolhead without FRS. Also isolate a potential similar segfault on checking filament cutter sensor. Resolves issues with loading and possibly unloading on CC1 with OG toolhead board.

Forces SET_ALL_CHANNELS_SAME handler to always write 0, preventing cmd_M749 from skipping the unload/load cycle on single-color prints. The printer will now respect the user-selected filament color for both slicer and touchscreen selection paths. Patch: movne r0, #1 -> mov r0, #0 at 0x239714 Stock: ae693f7dc096da1f734c2972694963286cba20dc8f6afac79f8468139b613129 Patch: dd967e9dddb77966e2828fa08ae67f8a7c68c7917e1adce4aa97de880b749895

pdscomp added 2 commits April 27, 2026 18:34

Initial rebase on Elegoo 1.4.44 (thanks Anna\!)

4aa700f

Support new kernal variant in 1.4.44

8d4f6c6

Copilot AI review requested due to automatic review settings May 25, 2026 22:21

pdscomp marked this pull request as draft May 25, 2026 22:21

Copilot started reviewing on behalf of pdscomp May 25, 2026 22:21 View session

pdscomp added 4 commits May 25, 2026 18:22

Refactor USB NIC kernel modules to support updated 1.4.46 release, ad…

73cd843

…d flash and switch-to-cosmos scripts

Re-host bsdiff binary patches from 1.1.40 to 1.4.46, update scripts t…

7ab28de

…o allow selection of different patches, added README.md for each binary patch version since approach might be different.

Update core OpenCentauri patched scripts and patcher to handle update…

6abc0ea

…d 1.4.46 firmware and resolve some bugs

Update configs for new version of patcher script + updates for 1.4.46

8f01980

Copilot AI reviewed May 25, 2026

View reviewed changes

pdscomp added 2 commits June 3, 2026 09:00

Actually target 1.4.46 in the github actions workflow

6d7834a

pdscomp merged commit 7be5f24 into main Jun 7, 2026
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Rebase on upstream Elegoo 1.4.46 firmware, adding CANVAS support#94

Rebase on upstream Elegoo 1.4.46 firmware, adding CANVAS support#94
pdscomp merged 10 commits into
mainfrom
1.4.46

pdscomp commented May 25, 2026 •

edited

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		@@ -4,7 +4,7 @@
		### You can edit variables in here to tweak settings in the FW!
		###

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Pull request overview

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Savion commented Jun 3, 2026

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pdscomp commented May 25, 2026 •

edited

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