ediblerope
5e1780b4fe
NVIDIA 535's kernel module won't compile against kernel 7.x — the DMA mapping API changed in a way the 535 source doesn't handle. 6.12 LTS is the highest kernel branch that's a well-tested combo with the 535 driver, which we need on stable's nixpkgs to retain Maxwell support for Jellyfin NVENC. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
86 lines
2.9 KiB
Nix
86 lines
2.9 KiB
Nix
#./hosts/hardware/FredOS-Mediaserver.nix
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{ config, lib, pkgs, modulesPath, ... }:
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{
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imports = [
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(modulesPath + "/installer/scan/not-detected.nix")
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];
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boot.initrd.availableKernelModules = [ "ahci" "xhci_pci" "ata_generic" "ehci_pci" "usbhid" "usb_storage" "sd_mod" "rtsx_usb_sdmmc" ];
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boot.initrd.kernelModules = [ ];
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# nvidia_uvm is required for CUDA (used by NVENC/NVDEC in Jellyfin).
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# The other nvidia modules are loaded via services.xserver.videoDrivers but
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# nvidia_uvm is not pulled in automatically on a headless system.
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boot.kernelModules = [ "kvm-intel" "nvidia" "nvidia_modeset" "nvidia_uvm" "nvidia_drm" ];
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boot.extraModulePackages = [ ];
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fileSystems."/" = {
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device = "/dev/disk/by-uuid/092fa47c-2ebd-4fbb-84f1-ce9cd606ed67";
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fsType = "ext4";
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};
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fileSystems."/boot" = {
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device = "/dev/disk/by-uuid/2E97-CB68";
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fsType = "vfat";
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options = [ "fmask=0077" "dmask=0077" ];
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};
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# Data disks
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fileSystems."/mnt/disk1" = {
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device = "/dev/disk/by-uuid/90ae3493-38c1-4473-b409-e9d99c3b315e";
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fsType = "ext4";
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};
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fileSystems."/mnt/disk2" = {
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device = "/dev/disk/by-uuid/58cecfd5-2fd7-4c4b-b3a1-0bf5e9d0beab";
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fsType = "ext4";
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};
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fileSystems."/mnt/disk3" = {
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device = "/dev/disk/by-uuid/317660ef-bd75-4fa4-bd20-f96a3926bf7b";
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fsType = "ext4";
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};
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# Combined MergerFS pool
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fileSystems."/mnt/storage" = {
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device = "/mnt/disk1:/mnt/disk2:/mnt/disk3";
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fsType = "fuse.mergerfs";
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options = [
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"defaults"
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"allow_other"
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"use_ino"
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"cache.files=partial"
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"dropcacheonclose=true"
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"category.create=mfs"
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];
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};
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swapDevices = [ ];
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nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
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hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
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# NVIDIA driver 535 doesn't compile against kernel 7.x (nv-dma.c API change),
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# so override common.nix's linuxPackages_latest with the 6.12 LTS branch.
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# 6.12 LTS + NVIDIA 535.x is a well-tested combination.
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boot.kernelPackages = lib.mkForce pkgs.linuxPackages_6_12;
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# NVIDIA Quadro M2000 (Maxwell/GM206) — for Jellyfin NVENC hardware transcoding
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hardware.graphics.enable = true;
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hardware.nvidia = {
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modesetting.enable = true;
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open = false; # Maxwell architecture does not support the open kernel module
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nvidiaSettings = false; # headless server, no settings GUI needed
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# legacy_535 is the latest branch that still supports Maxwell GM206 (M2000)
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# and is the newest available on the stable nixpkgs channel. Newer "legacy"
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# branches (e.g. 580) only exist on unstable.
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package = config.boot.kernelPackages.nvidiaPackages.legacy_535;
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};
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services.xserver.videoDrivers = [ "nvidia" ];
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networking.hostName = "FredOS-Mediaserver";
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boot.loader.systemd-boot.enable = true;
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boot.loader.efi.canTouchEfiVariables = true;
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system.stateVersion = "25.11";
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}
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