+# configure X
+cat >${ROOT_DIR}/etc/X11/xorg.conf<<EOF
+# xorg.conf (X.Org X Window System server configuration file)
+
+Section "Monitor"
+ Identifier "Configured Monitor"
+ HorizSync 30-67
+ VertRefresh 48-52
+ DisplaySize 152 114
+ Mode "1200x900"
+ DotClock 57.275
+ HTimings 1200 1208 1216 1240
+ VTimings 900 905 908 912
+ Flags "-HSync" "-VSync"
+ EndMode
+EndSection
+
+Section "Screen"
+ Identifier "Default Screen"
+ Monitor "Configured Monitor"
+EndSection
+EOF
+
+# configure gdm, gnome
+sed -i 's_\[daemon\]_\[daemon\]\n\nGreeter=/usr/lib/gdm/gdmlogin\n\nAutomaticLoginEnable=true\n\nAutomaticLogin=olpc_' ${ROOT_DIR}/etc/gdm/gdm.conf
+cat >${ROOT_DIR}/etc/gconf/2/local-defaults.path<<EOF
+# DebXO defaults (customized for the XO-1's display
+xml:readonly:/etc/gconf/debxo.xml.defaults
+EOF
+mkdir -p ${ROOT_DIR}/etc/gconf/debxo.xml.defaults
+cp %gconf-tree.xml ${ROOT_DIR}/etc/gconf/debxo.xml.defaults/
+