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Catcrafts builds of the postmarketos image for the fairphone 6
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Jorijn van der Graaf 34cfc098d8
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Details
camera: enable the FP6 ultra-wide pipeline (kernel config + patched libcamera) 
Kernel config: CONFIG_VIDEO_OV13B10=m + CONFIG_VIDEO_DW9714=m — the camss
core, CAMCC and CCI were already enabled; the sensor and VCM drivers were
the only missing pieces. The camera carries themselves land via
milos-linux combined-stable (merge of the 'camera' topic branch,
nondescriptpointer's 5 patches, authorship preserved).

libcamera: new temp/ aport overriding pmOS 99990.7.2-r1 with -r2, adding
nondescriptpointer's OV13B10 sensor helper (gain = code/128, enables the
software-ISP AGC/AWB) and sensor properties patches on top of the pmOS
0.7.2 APKBUILD. Patch sha512s re-recorded from the actual files (his
APKBUILD diff carried stale hashes); all four patches verified to apply
against the v0.7.2 tarball.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-16 04:08:36 +02:00
.forgejo/workflows compressed single artifact 2026-08-10 16:22:20 +02:00
aports camera: enable the FP6 ultra-wide pipeline (kernel config + patched libcamera) 2026-08-16 04:08:36 +02:00
.gitignore gitignore dist/; fix empty then-branch (sh syntax) in the NV verdict 2026-08-09 02:44:39 +02:00
build.sh build: copy catcrafts-fp6-repo into the pmaports overlay 2026-08-15 00:04:55 +02:00
install.sh compressed artifcats 2026-08-10 10:40:50 +02:00
README.md readme 2026-08-14 23:12:04 +02:00

README.md

fp6-img

Flashable postmarketOS images for the Fairphone 6, built nightly from the Catcrafts milos-linux combined-stable kernel branch, with imsd (userspace VoLTE) preinstalled.

Maintained by Jorijn van der Graaf (TheMightyCat) at Catcrafts.

Caution

Emergency calling is unverified. Calls (including 112/911) go through imsd, whose emergency path is spec-shaped but has never been verified against a live network.

What works

Everything on the combined-stable branch: display, touch, wifi, cellular data, NFC (reader), speaker audio, microphone, IMU, magnetometer, barometer, ambient light/proximity — plus VoLTE calls (both directions) through imsd.

Verified on exactly one device / one carrier (KPN NL). Reports from other carriers are very welcome.

Flashing

Download fp6-img.tar.xz from the latest release and unlock the bootloader (Fairphone's official process).

Install: with the phone in fastboot mode,

tar xf fp6-img.tar.xz
cd fp6-img
./install.sh

install.sh erases dtbo, flashes the rootfs, RAM-boots the kernel, writes the boot partition from inside Linux where the bootloader's NV-wipe cannot see it, then reads the modem NV back and reports the result. The bootloader never writes boot.

Default login: user / 147147 (same as official postmarketOS images — change it). Never re-lock the bootloader with a custom image installed.

VoLTE configuration

imsd is installed but needs your carrier's P-CSCF address:

# /etc/imsd.env
PCSCF=<your carrier's P-CSCF IPv6 address>

Find it in a stock-firmware capture or your carrier's IMS documentation, then systemctl restart imsd (the service is enabled at boot and waits for this file to exist). See the imsd README for the full variable reference and carrier assumptions.

How it builds

build.sh drives pmbootstrap with the aports/ overlay in this repository:

  • device/linux-postmarketos-qcom-milos — the pmaports kernel aport, repointed at combined-stable with the exact kernel config the development FP6 runs.
  • modem/imsd — imsd, packaged from source. Its provides=81voltd keeps the conflicting modem-firmware IMS helper off the image (two IMS stacks cannot share one PDN).
  • main/postmarketos-config-nftables — adds the -imsd subpackage accepting imsd's IPsec-protected SIP ports on the IMS PDN (auto-installed alongside imsd).
  • device/catcrafts-fp6-repo — subscribes the installed system to the Catcrafts apk registry (signing key + /etc/apk/repositories entry). CI publishes every built package there, so apk upgrade delivers kernel/imsd/GNSS updates between image releases.