+[ -r /proc/1 ] || mount -t proc none /proc
+
+if [ -n "$CHROOTMIRROR" ] ; then
+ echo "$CHROOTMIRROR" > /etc/apt/sources.list
+fi
+
+if ! [ -r /etc/kernel-img.conf ] ; then
+ echo "Setting up /etc/kernel-img.conf"
+ cat > /etc/kernel-img.conf << EOF
+# Kernel Image management overrides
+# See kernel-img.conf(5) for details
+do_initrd = Yes
+do_symlinks = Yes
+EOF
+fi
+
+# install additional packages
+if [ "$PACKAGES" = 'yes' ] ; then
+ if ! [ -r /etc/debootstrap/packages ] ; then
+ echo "Error: /etc/debootstrap/packages not found, exiting."
+ exit 1
+ else
+ apt-get update
+ apt-get --force-yes -y install "$(cat /etc/debootstrap/packages)"
+ fi
+fi