aenderer: use disko

Author: pogoba

modules/hardware/disko-aenderer.nix

@@ -0,0 +1,62 @@
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        # TODO: set to actual device, e.g. "/dev/nvme0n1"
+        device = "/dev/nvme0n1";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "4G";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "defaults" ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "crypted";
+                settings = {
+                  allowDiscards = true;
+                };
+                content = {
+                  type = "lvm_pv";
+                  vg = "pool";
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      pool = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%FREE";
+            content = {
+              type = "filesystem";
+              format = "btrfs";
+              mountpoint = "/";
+              mountOptions = [ "defaults" ];
+            };
+          };
+          swap = {
+            size = "32G";
+            content = {
+              type = "swap";
+            };
+          };
+        };
+      };
+    };
+  };
+}

modules/hardware/hardware-aenderer.nix

@@ -1,23 +1,30 @@
-# Generated by 'nixos-generate-config'. Replace with actual hardware config.
-{ modulesPath, ... }:
+{ inputs, modulesPath, ... }:
 
 {
-  imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+  imports = [
+    (modulesPath + "/installer/scan/not-detected.nix")
+    inputs.disko.nixosModules.disko
+    ./disko-aenderer.nix
+  ];
 
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" ];
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "usb_storage" "usbhid" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];
 
-  # TODO: replace with actual disk UUIDs after installation
-  # boot.initrd.luks.devices = { };
-  # fileSystems."/" = { };
-  # fileSystems."/boot" = { };
-  # swapDevices = [ ];
+  boot.kernel.sysctl = {
+    "kernel.sysrq" = 64; # permit term e, kill i, oom-kill f
+  };
+
+  # replace oomd and earlyoom with zswap:
+  boot.kernelParams = [
+    "zswap.enabled=1"
+    "zswap.compressor=lz4"
+    "zswap.max_pool_percent=20"
+    "zswap.shrinker_enabled=1"
+  ];
 }