silly uki image with the systemd-ukify tooling

flake.nix

@@ -22,22 +22,32 @@
           default = self.packages.${system}.image;
           image = pkgs.writeShellScriptBin "image" ''
             echo "make UKI..."
-            ${self.packages.${system}.systemd.out}/bin/ukify build \
+            echo ${self.packages.${system}.kernel.kernel}/bzImage
+            ${self.packages.${system}.systemd.out}/usr/bin/ukify build \
             --linux ${self.packages.${system}.kernel.kernel}/bzImage \
-            --initrd ./out/initrd.gz \
+            --initrd ./initrd.gz \
             --cmdline "console=ttyS0" \
-            -o patos.uki
+            -o patos.efi
           '';
 
           kernel = pkgs.callPackage ./kernel { };
           initrd = pkgs.writeShellScriptBin "mkinitrd" ''
             echo "make initrd..."
-            mkdir -p out/lib
+            mkdir -p out
             # copy systemd
             cp -r ${self.packages.${system}.systemd.out}/* out/
             pushd out
 
-            chmod 755 etc
+            chmod 755 etc usr/lib
+
+            mkdir -p dev proc sys tmp root
+            ln -sf usr/bin bin
+            ln -sf usr/sbin sbin
+            ln -sf usr/lib lib
+            ln -sf usr/lib lib64
+
+            ln -sf ../proc/self/mounts etc/mtab
+            ln -sf usr/lib/systemd/systemd init
 
             echo patos > ./etc/hostname
             cat <<EOF > ./etc/os-release
@@ -99,10 +109,10 @@
             chmod 644 ./etc/group
 
             # get shared libs
-            find . -type f -executable | xargs ldd | awk '{print $3}' | grep -v systemd | sort -u | xargs cp -t lib
+            find . -type f -executable | xargs ldd | awk '{print $3}' | grep -v systemd | sort -u | xargs cp -t usr/lib
 
             # gen initrd
-            find . -print0 | ${pkgs.lib.getExe pkgs.cpio} --null --owner=root:root -o --format=newc | ${pkgs.lib.getExe pkgs.gzip} -9 > initrd.gz
+            find . -print0 | ${pkgs.lib.getExe pkgs.cpio} --null --owner=root:root -o --format=newc | ${pkgs.lib.getExe pkgs.gzip} -9 > ../initrd.gz
           '';
           systemd = pkgs.callPackage ./systemd { };
         };

systemd/default.nix

@@ -171,7 +171,7 @@ stdenv.mkDerivation (finalAttrs: {
     "--sysconfdir=/etc"
     "--localstatedir=/var"
     "--libdir=/usr/lib"
-    "--bindir=/bin"
+    "--bindir=/usr/bin"
     "--includedir=/usr/include"
     "--localedir=/usr/share/locale"