+(chroot ${ROOT_DIR} aptitude install -y `grep --invert-match '^#' ${PLIST}`)
+
+# configure X
+if [ -d ${ROOT_DIR}/etc/X11 ]; then
+ cat >${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
+fi
+
+# key bindings/mappings
+if [ -d ${ROOT_DIR}/usr/share/hal/fdi/information/10freedesktop/ ]; then
+ cp 30-keymap-olpc.fdi ${ROOT_DIR}/usr/share/hal/fdi/information/10freedesktop/
+fi
+
+# configure kdm, kde
+if [ -d ${ROOT_DIR}/etc/kde3/kdm ]; then
+ sed --in-place "s/AllowNullPasswd=false/AllowNullPasswd=true/;s/#AutoLoginEnable=true/AutoLoginEnable=true/;s/#AutoLoginUser=fred/AutoLoginUser=${DEFUSER}/" ${ROOT_DIR}/etc/kde3/kdm/kdmrc
+fi
+
+# configure gdm, gnome
+if [ -d ${ROOT_DIR}/etc/gdm ]; then
+ sed -i "s_\[daemon\]_\[daemon\]\n\nGreeter=/usr/lib/gdm/gdmlogin\n\nAutomaticLoginEnable=true\n\nAutomaticLogin=${DEFUSER}_" ${ROOT_DIR}/etc/gdm/gdm.conf
+fi
+if [ -d ${ROOT_DIR}/etc/gconf/2 ]; then
+ cat >${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/
+fi