on Arch, mkosi-initrd pulls in bluetooth and sound, which require firmware which is stripped by default

[cvlc12]

mkosi commit the issue has been seen with

main

Used host distribution

Arch

Used target distribution

Arch

Linux kernel version used

6.15

CPU architectures issue was seen on

x86_64

Unexpected behaviour you saw

No sound/bluetooth on booted system with:

juil. 31 11:43:13 archlinux kernel: Bluetooth: hci0: Failed to load Intel firmware file intel/ibt-19-0-4.sfi (-2)
juil. 31 11:43:13 archlinux kernel: Bluetooth: hci0: Reading supported features failed (-56)
juil. 31 11:43:13 archlinux kernel: Bluetooth: hci0: Failed to read MSFT supported features (-56)
juil. 31 11:43:13 archlinux kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: SOF firmware and/or topology file not found.
juil. 31 11:43:13 archlinux kernel: sof-audio-pci-intel-tgl 0000:00:1f.3: error: sof_probe_work failed err: -2

Can be fixed with something like

FirmwareFiles=
        intel/ibt-19-*
        sof-tgl.ri
        sof-hda-generic-2ch.tplg

But this should not be necessary in the initrd ?

no problem with mkinitcpio initrds

Used mkosi config

Default mkosi-initrd kernel install plugin

[DaanDeMeyer]

@cvlc12 I need lots more info to be able to debug this:

• modinfo output of the kernel modules that try to load these firmware files
• Debug output of mkosi-initrd

[DaanDeMeyer]

We pull in all modules that are loaded on the host (plus some extras which we always include).

For bluetooth, the issue is that btintel does not declare all the firmware it needs:

daandemeyer@particle-850f-48ee ~/p/mkosi (bind-user)> modinfo btintel
filename:       /lib/modules/6.15.4-arch2-1/kernel/drivers/bluetooth/btintel.ko.zst
firmware:       intel/ibt-12-16.ddc
firmware:       intel/ibt-12-16.sfi
firmware:       intel/ibt-11-5.ddc
firmware:       intel/ibt-11-5.sfi