Can someone with serial console access try NixOS kernel on Librem 5?

Hardware Librem 5
20

I’ve managed to get NixOS running on the Librem 5 with a kernel build from https://source.puri.sm/Librem5/linux.git

Biggest issue atm is that I do not have sound in calls due to callaudiod segfaulting.

One of the minor issues that I have to run mkimage by hand to update /boot/boot.scr on configuration changes, to to boot into a new NixOS environment. It seems Purism u-boot does not support u-boot’s Generic Distro Configuration Concept which supports /boot/extlinux/ extlinux.conf: https://u-boot.readthedocs.io/en/latest/develop/distro.html

The part in /etc/nixos/configuration.nix that builds the Purism kernel is:

boot = {
    initrd = {
        kernelModules                       = [ "bq25891_charger" "dwc3" "imx_dcss" "imx_sdma" "mtdblock" "ofpart" "phy_fsl_imx8mq_usb" "snvs_pwrkey" "spi_nor" "tps6598x" "xhci_hcd" "usbcore" "usb_storage" "uas" "xhci_plat_hcd" ];
    };
    kernelParams                            = [ "console=tty0" "earlyprintk=vga" "ignore_loglevel" "rootwait" ];
    loader = {
        generic-extlinux-compatible.enable  =  true;
        grub.enable                         =  false;
    };
    kernelPackages = let
        linux_librem5_pkg = { fetchgit, buildLinux, ... } @ args:
            buildLinux (args // rec {
                defconfig = "librem5_defconfig";
                version = "6.1.6-librem5";
                modDirVersion = version;
                src = fetchgit {
                    url = "https://source.puri.sm/Librem5/linux.git";
                    hash = "sha256-EE6WHqgBmoRuZnbCPO3NrydOHPxG8G7lZXxDNm/2Kq4=";
                };
                kernelPatches = [];
            } // (args.argsOverride or {}));
            linux_librem5 = pkgs.callPackage linux_librem5_pkg{};
        in
            pkgs.recurseIntoAttrs (pkgs.linuxPackagesFor linux_librem5);
};
3 Likes