raspberry-pi-5: build error linux-rpi-6.18.39-stable_20260724-modules-shrunk

[CrazyChaoz]

I get an error when building the Raspberry Pi kernel.
(it is a remote build, just fyi)

nix log /nix/store/v962xzwlm8b991wxpc136d2kpxlbwqk7-linux-rpi-6.18.39-stable_20260724-modules-shrunk.drv

kernel version is 6.18.39
root module: 3w-9xxx
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/3w-9xxx.ko.xz
root module: 3w-xxxx
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/3w-xxxx.ko.xz
root module: ahci
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/ata/libata.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/ata/libahci.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/ata/ahci.ko.xz
root module: aic79xx
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/scsi_transport_spi.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/aic7xxx/aic79xx.ko.xz
root module: aic7xxx
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/scsi_transport_spi.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/aic7xxx/aic7xxx.ko.xz
root module: analogix-anx6345
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/base/regmap/regmap-i2c.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/media/cec/core/cec.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/gpu/drm/display/drm_display_helper.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/gpu/drm/bridge/analogix/analogix_dp.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/gpu/drm/bridge/analogix/analogix-anx6345.ko.xz
root module: analogix-dp
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/media/cec/core/cec.ko.xz
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/gpu/drm/display/drm_display_helper.ko.xz
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/gpu/drm/bridge/analogix/analogix_dp.ko.xz
root module: arcmsr
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/scsi/arcmsr/arcmsr.ko.xz
root module: ata_piix
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/ata/libata.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/ata/ata_piix.ko.xz
root module: autofs
  builtin dependency: autofs4
root module: axp20x-ac-power
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/iio/industrialio.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/power/supply/axp20x_ac_power.ko.xz
root module: axp20x-battery
  dependency already copied: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/iio/industrialio.ko.xz
  copying dependency: /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39/kernel/drivers/power/supply/axp20x_battery.ko.xz
root module: clk-rp1
  builtin dependency: clk_rp1
root module: dw-hdmi
modprobe: FATAL: Module dw-hdmi not found in directory /nix/store/lgh4zh9p2ns7wbf93bl6pcj6071v8lrd-linux-rpi-6.18.39-stable_20260724-modules/lib/modules/6.18.39

[JamieMagee]

This appears to be the same underlying issue as NixOS/nixpkgs#154163. The workaround is to set hardware.enableAllHardware = lib.mkForce false;.

[CrazyChaoz]

just adding hardware.enableAllHardware = lib.mkForce false; didn't help

Ref: nix build git+https://git.kempinger.at/CrazyChaoz/Raspberry-Pi-5-Kiosk.git?rev=1e738ec1e38e7ca35fa0a57e3669f708a11f5581#nixosConfigurations.rpi5-sd-image.config.system.build.sdImage

[JamieMagee]

Thanks! I built the exact revision you linked.

hardware.enableAllHardware = lib.mkForce false; is working. It removes dw-hdmi from the initrd module list. The build then gets further and fails on a second missing module:

root module: tpm-crb
modprobe: FATAL: Module tpm-crb not found

The systemd initrd enables TPM2 support by default and adds both tpm-tis and tpm-crb. The Raspberry Pi kernel provides tpm-tis, but not tpm-crb. This is the same problem described in NixOS/nixpkgs#344963.

Adding this alongside the existing enableAllHardware override fixes the initrd build :

hardware.enableAllHardware = lib.mkForce false;
boot.initrd.availableKernelModules."tpm-crb" = lib.mkForce false;

If you don't need TPM support in the initrd, this also works:

boot.initrd.systemd.tpm2.enable = false;