diff --git a/cmds/installd/installd.rc b/cmds/installd/installd.rc
index d5d5236..240aa49 100644
--- a/cmds/installd/installd.rc
+++ b/cmds/installd/installd.rc
@@ -1,2 +1,103 @@
+
 service installd /system/bin/installd
     class main
+
+on early-boot
+    mkdir /config/sdcardfs/extensions/1055
+    mkdir /config/sdcardfs/extensions/1056
+    mkdir /config/sdcardfs/extensions/1057
+    mkdir /config/sdcardfs/extensions/1056/3gpp
+    mkdir /config/sdcardfs/extensions/1056/3gp
+    mkdir /config/sdcardfs/extensions/1056/3gpp2
+    mkdir /config/sdcardfs/extensions/1056/3g2
+    mkdir /config/sdcardfs/extensions/1056/avi
+    mkdir /config/sdcardfs/extensions/1056/dl
+    mkdir /config/sdcardfs/extensions/1056/dif
+    mkdir /config/sdcardfs/extensions/1056/dv
+    mkdir /config/sdcardfs/extensions/1056/fli
+    mkdir /config/sdcardfs/extensions/1056/m4v
+    mkdir /config/sdcardfs/extensions/1056/ts
+    mkdir /config/sdcardfs/extensions/1056/mpeg
+    mkdir /config/sdcardfs/extensions/1056/mpg
+    mkdir /config/sdcardfs/extensions/1056/mpe
+    mkdir /config/sdcardfs/extensions/1056/mp4
+    mkdir /config/sdcardfs/extensions/1056/vob
+    mkdir /config/sdcardfs/extensions/1056/qt
+    mkdir /config/sdcardfs/extensions/1056/mov
+    mkdir /config/sdcardfs/extensions/1056/mxu
+    mkdir /config/sdcardfs/extensions/1056/webm
+    mkdir /config/sdcardfs/extensions/1056/lsf
+    mkdir /config/sdcardfs/extensions/1056/lsx
+    mkdir /config/sdcardfs/extensions/1056/mkv
+    mkdir /config/sdcardfs/extensions/1056/mng
+    mkdir /config/sdcardfs/extensions/1056/asf
+    mkdir /config/sdcardfs/extensions/1056/asx
+    mkdir /config/sdcardfs/extensions/1056/wm
+    mkdir /config/sdcardfs/extensions/1056/wmv
+    mkdir /config/sdcardfs/extensions/1056/wmx
+    mkdir /config/sdcardfs/extensions/1056/wvx
+    mkdir /config/sdcardfs/extensions/1056/movie
+    mkdir /config/sdcardfs/extensions/1056/wrf
+    mkdir /config/sdcardfs/extensions/1057/bmp
+    mkdir /config/sdcardfs/extensions/1057/gif
+    mkdir /config/sdcardfs/extensions/1057/jpg
+    mkdir /config/sdcardfs/extensions/1057/jpeg
+    mkdir /config/sdcardfs/extensions/1057/jpe
+    mkdir /config/sdcardfs/extensions/1057/pcx
+    mkdir /config/sdcardfs/extensions/1057/png
+    mkdir /config/sdcardfs/extensions/1057/svg
+    mkdir /config/sdcardfs/extensions/1057/svgz
+    mkdir /config/sdcardfs/extensions/1057/tiff
+    mkdir /config/sdcardfs/extensions/1057/tif
+    mkdir /config/sdcardfs/extensions/1057/wbmp
+    mkdir /config/sdcardfs/extensions/1057/webp
+    mkdir /config/sdcardfs/extensions/1057/dng
+    mkdir /config/sdcardfs/extensions/1057/cr2
+    mkdir /config/sdcardfs/extensions/1057/ras
+    mkdir /config/sdcardfs/extensions/1057/art
+    mkdir /config/sdcardfs/extensions/1057/jng
+    mkdir /config/sdcardfs/extensions/1057/nef
+    mkdir /config/sdcardfs/extensions/1057/nrw
+    mkdir /config/sdcardfs/extensions/1057/orf
+    mkdir /config/sdcardfs/extensions/1057/rw2
+    mkdir /config/sdcardfs/extensions/1057/pef
+    mkdir /config/sdcardfs/extensions/1057/psd
+    mkdir /config/sdcardfs/extensions/1057/pnm
+    mkdir /config/sdcardfs/extensions/1057/pbm
+    mkdir /config/sdcardfs/extensions/1057/pgm
+    mkdir /config/sdcardfs/extensions/1057/ppm
+    mkdir /config/sdcardfs/extensions/1057/srw
+    mkdir /config/sdcardfs/extensions/1057/arw
+    mkdir /config/sdcardfs/extensions/1057/rgb
+    mkdir /config/sdcardfs/extensions/1057/xbm
+    mkdir /config/sdcardfs/extensions/1057/xpm
+    mkdir /config/sdcardfs/extensions/1057/xwd
+    mkdir /config/sdcardfs/extensions/1055/aac
+    mkdir /config/sdcardfs/extensions/1055/aac
+    mkdir /config/sdcardfs/extensions/1055/amr
+    mkdir /config/sdcardfs/extensions/1055/awb
+    mkdir /config/sdcardfs/extensions/1055/snd
+    mkdir /config/sdcardfs/extensions/1055/flac
+    mkdir /config/sdcardfs/extensions/1055/flac
+    mkdir /config/sdcardfs/extensions/1055/mp3
+    mkdir /config/sdcardfs/extensions/1055/mpga
+    mkdir /config/sdcardfs/extensions/1055/mpega
+    mkdir /config/sdcardfs/extensions/1055/mp2
+    mkdir /config/sdcardfs/extensions/1055/m4a
+    mkdir /config/sdcardfs/extensions/1055/aif
+    mkdir /config/sdcardfs/extensions/1055/aiff
+    mkdir /config/sdcardfs/extensions/1055/aifc
+    mkdir /config/sdcardfs/extensions/1055/gsm
+    mkdir /config/sdcardfs/extensions/1055/mka
+    mkdir /config/sdcardfs/extensions/1055/m3u
+    mkdir /config/sdcardfs/extensions/1055/wma
+    mkdir /config/sdcardfs/extensions/1055/wax
+    mkdir /config/sdcardfs/extensions/1055/ra
+    mkdir /config/sdcardfs/extensions/1055/rm
+    mkdir /config/sdcardfs/extensions/1055/ram
+    mkdir /config/sdcardfs/extensions/1055/ra
+    mkdir /config/sdcardfs/extensions/1055/pls
+    mkdir /config/sdcardfs/extensions/1055/sd2
+    mkdir /config/sdcardfs/extensions/1055/wav
+    mkdir /config/sdcardfs/extensions/1055/ogg
+    mkdir /config/sdcardfs/extensions/1055/oga
diff --git a/cmds/installd/matchgen.py b/cmds/installd/matchgen.py
index b37352b..131487d 100644
--- a/cmds/installd/matchgen.py
+++ b/cmds/installd/matchgen.py
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import collections
+import collections, sys
 
 TYPES = {
     "AID_MEDIA_AUDIO": ["aac","aac","amr","awb","snd","flac","flac","mp3","mpga","mpega","mp2","m4a","aif","aiff","aifc","gsm","mka","m3u","wma","wax","ra","rm","ram","ra","pls","sd2","wav","ogg","oga"],
@@ -22,6 +22,19 @@
     "AID_MEDIA_IMAGE": ["bmp","gif","jpg","jpeg","jpe","pcx","png","svg","svgz","tiff","tif","wbmp","webp","dng","cr2","ras","art","jng","nef","nrw","orf","rw2","pef","psd","pnm","pbm","pgm","ppm","srw","arw","rgb","xbm","xpm","xwd"]
 }
 
+if "--rc" in sys.argv:
+    print "on early-boot"
+    print "    mkdir /config/sdcardfs/extensions/1055"
+    print "    mkdir /config/sdcardfs/extensions/1056"
+    print "    mkdir /config/sdcardfs/extensions/1057"
+    for gid, exts in TYPES.iteritems():
+        if gid is "AID_MEDIA_AUDIO": gid = "1055"
+        if gid is "AID_MEDIA_VIDEO": gid = "1056"
+        if gid is "AID_MEDIA_IMAGE": gid = "1057"
+        for ext in exts:
+            print "    mkdir /config/sdcardfs/extensions/%s/%s" % (gid, ext)
+    exit()
+
 print """/*
  * Copyright (C) 2017 The Android Open Source Project
  *