nixos/boot: add option to disable initrd
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rnhmjoj
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dea79b56f7
@ -187,139 +187,144 @@ in
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###### implementation
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config = mkIf (!config.boot.isContainer) {
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config = mkMerge
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[ (mkIf config.boot.initrd.enable {
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boot.initrd.availableKernelModules =
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[ # Note: most of these (especially the SATA/PATA modules)
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# shouldn't be included by default since nixos-generate-config
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# detects them, but I'm keeping them for now for backwards
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# compatibility.
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system.build = { inherit kernel; };
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# Some SATA/PATA stuff.
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"ahci"
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"sata_nv"
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"sata_via"
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"sata_sis"
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"sata_uli"
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"ata_piix"
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"pata_marvell"
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system.modulesTree = [ kernel ] ++ config.boot.extraModulePackages;
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# Standard SCSI stuff.
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"sd_mod"
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"sr_mod"
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# Implement consoleLogLevel both in early boot and using sysctl
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# (so you don't need to reboot to have changes take effect).
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boot.kernelParams =
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[ "loglevel=${toString config.boot.consoleLogLevel}" ] ++
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optionals config.boot.vesa [ "vga=0x317" "nomodeset" ];
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# SD cards and internal eMMC drives.
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"mmc_block"
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boot.kernel.sysctl."kernel.printk" = mkDefault config.boot.consoleLogLevel;
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# Support USB keyboards, in case the boot fails and we only have
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# a USB keyboard, or for LUKS passphrase prompt.
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"uhci_hcd"
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"ehci_hcd"
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"ehci_pci"
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"ohci_hcd"
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"ohci_pci"
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"xhci_hcd"
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"xhci_pci"
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"usbhid"
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"hid_generic" "hid_lenovo" "hid_apple" "hid_roccat"
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"hid_logitech_hidpp" "hid_logitech_dj"
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boot.kernelModules = [ "loop" "atkbd" ];
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] ++ optionals (pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64) [
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# Misc. x86 keyboard stuff.
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"pcips2" "atkbd" "i8042"
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boot.initrd.availableKernelModules =
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[ # Note: most of these (especially the SATA/PATA modules)
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# shouldn't be included by default since nixos-generate-config
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# detects them, but I'm keeping them for now for backwards
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# compatibility.
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# x86 RTC needed by the stage 2 init script.
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"rtc_cmos"
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];
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# Some SATA/PATA stuff.
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"ahci"
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"sata_nv"
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"sata_via"
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"sata_sis"
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"sata_uli"
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"ata_piix"
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"pata_marvell"
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boot.initrd.kernelModules =
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[ # For LVM.
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"dm_mod"
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];
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})
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# Standard SCSI stuff.
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"sd_mod"
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"sr_mod"
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(mkIf (!config.boot.isContainer) {
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system.build = { inherit kernel; };
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# SD cards and internal eMMC drives.
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"mmc_block"
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system.modulesTree = [ kernel ] ++ config.boot.extraModulePackages;
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# Support USB keyboards, in case the boot fails and we only have
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# a USB keyboard, or for LUKS passphrase prompt.
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"uhci_hcd"
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"ehci_hcd"
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"ehci_pci"
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"ohci_hcd"
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"ohci_pci"
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"xhci_hcd"
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"xhci_pci"
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"usbhid"
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"hid_generic" "hid_lenovo" "hid_apple" "hid_roccat"
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"hid_logitech_hidpp" "hid_logitech_dj"
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# Implement consoleLogLevel both in early boot and using sysctl
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# (so you don't need to reboot to have changes take effect).
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boot.kernelParams =
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[ "loglevel=${toString config.boot.consoleLogLevel}" ] ++
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optionals config.boot.vesa [ "vga=0x317" "nomodeset" ];
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] ++ optionals (pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64) [
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# Misc. x86 keyboard stuff.
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"pcips2" "atkbd" "i8042"
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boot.kernel.sysctl."kernel.printk" = mkDefault config.boot.consoleLogLevel;
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# x86 RTC needed by the stage 2 init script.
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"rtc_cmos"
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];
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boot.kernelModules = [ "loop" "atkbd" ];
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boot.initrd.kernelModules =
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[ # For LVM.
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"dm_mod"
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];
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# The Linux kernel >= 2.6.27 provides firmware.
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hardware.firmware = [ kernel ];
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# The Linux kernel >= 2.6.27 provides firmware.
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hardware.firmware = [ kernel ];
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# Create /etc/modules-load.d/nixos.conf, which is read by
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# systemd-modules-load.service to load required kernel modules.
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environment.etc =
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{ "modules-load.d/nixos.conf".source = kernelModulesConf;
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};
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systemd.services.systemd-modules-load =
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{ wantedBy = [ "multi-user.target" ];
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restartTriggers = [ kernelModulesConf ];
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serviceConfig =
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{ # Ignore failed module loads. Typically some of the
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# modules in ‘boot.kernelModules’ are "nice to have but
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# not required" (e.g. acpi-cpufreq), so we don't want to
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# barf on those.
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SuccessExitStatus = "0 1";
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# Create /etc/modules-load.d/nixos.conf, which is read by
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# systemd-modules-load.service to load required kernel modules.
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environment.etc =
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{ "modules-load.d/nixos.conf".source = kernelModulesConf;
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};
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};
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lib.kernelConfig = {
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isYes = option: {
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assertion = config: config.isYes option;
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message = "CONFIG_${option} is not yes!";
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configLine = "CONFIG_${option}=y";
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};
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systemd.services.systemd-modules-load =
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{ wantedBy = [ "multi-user.target" ];
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restartTriggers = [ kernelModulesConf ];
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serviceConfig =
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{ # Ignore failed module loads. Typically some of the
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# modules in ‘boot.kernelModules’ are "nice to have but
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# not required" (e.g. acpi-cpufreq), so we don't want to
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# barf on those.
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SuccessExitStatus = "0 1";
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};
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};
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isNo = option: {
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assertion = config: config.isNo option;
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message = "CONFIG_${option} is not no!";
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configLine = "CONFIG_${option}=n";
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};
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lib.kernelConfig = {
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isYes = option: {
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assertion = config: config.isYes option;
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message = "CONFIG_${option} is not yes!";
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configLine = "CONFIG_${option}=y";
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};
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isModule = option: {
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assertion = config: config.isModule option;
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message = "CONFIG_${option} is not built as a module!";
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configLine = "CONFIG_${option}=m";
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};
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isNo = option: {
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assertion = config: config.isNo option;
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message = "CONFIG_${option} is not no!";
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configLine = "CONFIG_${option}=n";
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};
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### Usually you will just want to use these two
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# True if yes or module
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isEnabled = option: {
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assertion = config: config.isEnabled option;
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message = "CONFIG_${option} is not enabled!";
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configLine = "CONFIG_${option}=y";
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};
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isModule = option: {
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assertion = config: config.isModule option;
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message = "CONFIG_${option} is not built as a module!";
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configLine = "CONFIG_${option}=m";
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};
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# True if no or omitted
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isDisabled = option: {
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assertion = config: config.isDisabled option;
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message = "CONFIG_${option} is not disabled!";
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configLine = "CONFIG_${option}=n";
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};
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};
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### Usually you will just want to use these two
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# True if yes or module
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isEnabled = option: {
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assertion = config: config.isEnabled option;
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message = "CONFIG_${option} is not enabled!";
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configLine = "CONFIG_${option}=y";
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};
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# The config options that all modules can depend upon
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system.requiredKernelConfig = with config.lib.kernelConfig; [
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# !!! Should this really be needed?
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(isYes "MODULES")
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(isYes "BINFMT_ELF")
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] ++ (optional (randstructSeed != "") (isYes "GCC_PLUGIN_RANDSTRUCT"));
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# True if no or omitted
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isDisabled = option: {
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assertion = config: config.isDisabled option;
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message = "CONFIG_${option} is not disabled!";
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configLine = "CONFIG_${option}=n";
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};
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};
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# nixpkgs kernels are assumed to have all required features
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assertions = if config.boot.kernelPackages.kernel ? features then [] else
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let cfg = config.boot.kernelPackages.kernel.config; in map (attrs:
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{ assertion = attrs.assertion cfg; inherit (attrs) message; }
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) config.system.requiredKernelConfig;
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# The config options that all modules can depend upon
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system.requiredKernelConfig = with config.lib.kernelConfig;
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[
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# !!! Should this really be needed?
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(isYes "MODULES")
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(isYes "BINFMT_ELF")
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] ++ (optional (randstructSeed != "") (isYes "GCC_PLUGIN_RANDSTRUCT"));
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};
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# nixpkgs kernels are assumed to have all required features
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assertions = if config.boot.kernelPackages.kernel ? features then [] else
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let cfg = config.boot.kernelPackages.kernel.config; in map (attrs:
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{ assertion = attrs.assertion cfg; inherit (attrs) message; }
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) config.system.requiredKernelConfig;
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})
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];
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}
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@ -379,6 +379,17 @@ in
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'';
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};
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boot.initrd.enable = mkOption {
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type = types.bool;
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default = !config.boot.isContainer;
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defaultText = "!config.boot.isContainer";
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description = ''
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Whether to enable the NixOS initial RAM disk (initrd). This may be
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needed to perform some initialisation tasks (like mounting
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network/encrypted file systems) before continuing the boot process.
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'';
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};
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boot.initrd.prepend = mkOption {
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default = [ ];
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type = types.listOf types.str;
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@ -544,7 +555,7 @@ in
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};
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config = mkIf (!config.boot.isContainer) {
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config = mkIf config.boot.initrd.enable {
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assertions = [
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{ assertion = any (fs: fs.mountPoint == "/") fileSystems;
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message = "The ‘fileSystems’ option does not specify your root file system.";
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