Linux kernel: Difference between revisions

@@ Line 89: / Line 89: @@
                '';
          } ];
+}
+</syntaxhighlight>
+Another way to build a kernel with custom configuration is to create a overlay and use either <tt>extraConfig</tt> or <tt>structuredExtraConfig</tt>. This allows for more flexibility, since you can basically override any kernel option available here <ref>[https://github.com/NixOS/nixpkgs/blob/e6db435973160591fe7348876a5567c729495175/pkgs/os-specific/linux/kernel/generic.nix#L11-L56<tt>pkgs/os-specific/linux/kernel/generic.nix#L11-L56</tt>]</ref>. Using <tt>structuredExtraConfig</tt> is recommended since there is some sanity check if the options you're passing to your kernel is correct. Also, setting <tt>ignoreConfigErrors</tt> is useful to avoid <tt>error: unused option</tt> during build.
+<syntaxhighlight lang=nix>
+{
+  nixpkgs = {
+    overlays = [
+      (self: super: {
+        linuxZenWMuQSS = pkgs.linuxPackagesFor (pkgs.linux_zen.override {
+          structuredExtraConfig = with lib.kernel; {
+            SCHED_MUQSS = yes;
+          };
+          ignoreConfigErrors = true;
+        });
+      })
+    ];
+  };
 }
 </syntaxhighlight>