100 lines
2.2 KiB
Nix
100 lines
2.2 KiB
Nix
{
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config,
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lib,
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pkgs,
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username,
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...
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}:
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let
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btrfs = "/dev/disk/by-uuid/69ab72d4-6ced-4f70-8b5e-aa2daa8c0b6b";
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in
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{
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boot = {
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initrd = {
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kernelModules = [ "amdgpu" ];
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availableKernelModules = [
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"nvme" "xhci_pci" "thunderbolt" "uas" "sd_mod"
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];
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verbose = false;
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};
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kernelPackages = lib.mkForce pkgs.linuxPackages_cachyos;
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kernelModules = [ "kvm-amd" ];
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tmp.useTmpfs = true;
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kernel.sysctl = {
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"fs.file-max" = 9223372036854775807;
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};
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};
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services.scx.enable = true;
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fileSystems."/" = {
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device = btrfs;
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fsType = "btrfs";
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options = [
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"compress=zstd"
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"subvol=root"
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];
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};
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fileSystems."/nix" = {
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device = btrfs;
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fsType = "btrfs";
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options = [ "compress=zstd" "subvol=nix" ];
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};
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my.persist.location = "/nix/persist";
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fileSystems."/nix/persist" = {
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device = btrfs;
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fsType = "btrfs";
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options = [
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"compress=zstd"
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"subvol=persist"
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];
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neededForBoot = true;
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};
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boot.initrd.postDeviceCommands = lib.mkAfter ''
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mkdir /btrfs_tmp
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mount ${btrfs} /btrfs_tmp
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mkdir -p /btrfs_tmp/old_roots
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if [[ -e /btrfs_tmp/root ]]; then
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timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
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mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
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fi
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delete_subvolume_recursively() {
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IFS=$'\n'
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for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
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delete_subvolume_recursively "/btrfs_tmp/$i"
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done
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btrfs subvolume delete "$1"
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}
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for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +14); do
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delete_subvolume_recursively "$i"
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done
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btrfs subvolume create /btrfs_tmp/root
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umount /btrfs_tmp
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'';
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fileSystems."/boot" = {
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device = "/dev/disk/by-uuid/96D3-93B0";
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fsType = "vfat";
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options = [
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"uid=0"
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"gid=0"
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"fmask=0077"
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"dmask=0077"
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];
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};
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networking.useDHCP = lib.mkDefault false;
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hardware.enableRedistributableFirmware = lib.mkDefault true;
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hardware.cpu.amd.updateMicrocode = config.hardware.enableRedistributableFirmware;
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nixpkgs.hostPlatform = lib.mkForce "x86_64-linux";
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}
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