1c58cdbeed
This option behaves exactly like `boot.extraModprobeConfig`, except that it also includes the generated modprobe.d file in the initrd. Many years ago, someone tried to include the normal modprobe.d/nixos.conf file generated by `boot.extraModprobeConfig` in the initrd:0aa2c1dc46. This file contains a reference to a directory with firmware files inside. Including firmware in the initrd made it too big, so the commit was reverted again in4a4c051a95. The `boot.extraModprobeConfig` option not changing the initrd caused me much confusion because I tried to set the maximum cache size for ZFS and it didn't work. Closes https://github.com/NixOS/nixpkgs/issues/25456.
89 lines
2.5 KiB
Nix
89 lines
2.5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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###### interface
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options = {
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boot.blacklistedKernelModules = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [ "cirrusfb" "i2c_piix4" ];
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description = ''
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List of names of kernel modules that should not be loaded
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automatically by the hardware probing code.
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'';
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};
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boot.extraModprobeConfig = mkOption {
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default = "";
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example =
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''
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options parport_pc io=0x378 irq=7 dma=1
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'';
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description = ''
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Any additional configuration to be appended to the generated
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<filename>modprobe.conf</filename>. This is typically used to
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specify module options. See
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<citerefentry><refentrytitle>modprobe.d</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for details.
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'';
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type = types.lines;
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};
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boot.initrd.extraModprobeConfig = mkOption {
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default = "";
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example =
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''
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options zfs zfs_arc_max=1073741824
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'';
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description = ''
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Does exactly the same thing as
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<option>boot.extraModprobeConfig</option>, except
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that the generated <filename>modprobe.conf</filename>
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file is also included in the initrd.
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This is useful for setting module options for kernel
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modules that are loaded during early boot in the initrd.
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'';
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type = types.lines;
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};
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};
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###### implementation
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config = mkIf (!config.boot.isContainer) {
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environment.etc."modprobe.d/ubuntu.conf".source = "${pkgs.kmod-blacklist-ubuntu}/modprobe.conf";
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environment.etc."modprobe.d/nixos.conf".text =
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''
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${flip concatMapStrings config.boot.blacklistedKernelModules (name: ''
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blacklist ${name}
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'')}
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${config.boot.extraModprobeConfig}
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'';
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environment.etc."modprobe.d/nixos-initrd.conf".text = ''
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${config.boot.initrd.extraModprobeConfig}
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'';
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environment.etc."modprobe.d/debian.conf".source = pkgs.kmod-debian-aliases;
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environment.systemPackages = [ pkgs.kmod ];
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system.activationScripts.modprobe = stringAfter ["specialfs"]
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''
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# Allow the kernel to find our wrapped modprobe (which searches
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# in the right location in the Nix store for kernel modules).
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# We need this when the kernel (or some module) auto-loads a
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# module.
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echo ${pkgs.kmod}/bin/modprobe > /proc/sys/kernel/modprobe
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'';
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};
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}
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