Adding the bootchart capture script. It worked for me, run standalone, not as init.

I tried their website renderer, but it did not work for me. It may be shut down,
because their last update is for 2006.
Next steps: put it into nixos, and build the renderer (java!).

svn path=/nixpkgs/trunk/; revision=18041

pkgs/tools/system/bootchart/default.nix

@@ -0,0 +1,37 @@
+{stdenv, fetchurl, gnutar, gzip, coreutils, utillinux, gnugrep, gnused, psmisc, nettools}:
+
+stdenv.mkDerivation rec {
+  name = "bootchart-0.9";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/bootchart/${name}.tar.bz2";
+    sha256 = "0z9jvi7cyp3hpx6hf1fyaa8fhnaz7aqid8wrkwp29cngryg3jf3p";
+  };
+
+  buildInputs = [ gnutar gzip coreutils utillinux gnugrep gnused psmisc nettools ];
+
+  patchPhase = ''
+    export MYPATH=
+    for i in $buildInputs; do
+       export MYPATH=''${MYPATH}''${MYPATH:+:}$i/bin:$i/sbin
+    done
+
+    sed -i -e 's,PATH.*,PATH='$MYPATH, \
+       -e 's,^CONF.*,CONF='$out/etc/bootchartd.conf, \
+      script/bootchartd
+  '';
+
+  installPhase = ''
+    ensureDir $out/sbin $out/etc
+    cp script/bootchartd $out/sbin
+    cp script/bootchartd.conf $out/etc
+    chmod +x $out/sbin/bootchartd
+  '';
+
+  meta = {
+    homepage = http://www.bootchart.org/;
+    description = "Performance analysis and visualization of the GNU/Linux boot process";
+    license="GPLv2+";
+  };
+
+}

pkgs/top-level/all-packages.nix

@@ -477,6 +477,10 @@ let
     inherit fetchurl stdenv perl;
   };
 
+  bootchart = import ../tools/system/bootchart {
+    inherit fetchurl stdenv gnutar gzip coreutils utillinux gnugrep gnused psmisc nettools;
+  };
+
   eggdrop = import ../tools/networking/eggdrop {
     inherit fetchurl stdenv tcl;
   };