1 files changed, 17 insertions, 0 deletions
diff --git a/nix/initramfs.nix b/nix/initramfs.nix
index e69de29..6ca3865 100644
--- a/nix/initramfs.nix
+++ b/nix/initramfs.nix
@@ -0,0 +1,17 @@
+{ stdenv, kernel, busybox, cpio }:
+
+stdenv.mkDerivation {
+  name = "initramfs-yerba";
+  src = ./.;
+  buildInputs = [ cpio ];
+  buildPhase = ''
+    mkdir -p $out
+    # Create initramfs directory structure
+    mkdir -p initramfs/bin
+    cp -a ${busybox}/bin/* initramfs/bin/
+    cp ${./initramfs_init} initramfs/init
+    chmod +x initramfs/init
+    cd initramfs
+    find . | cpio -o -H newc | gzip > $out/initramfs.cpio.gz
+  '';
+}