case "$MODE" in
    commandline)
        add_option "security-mirror" "`eval_gettext "set the security mirror location"`" "advanced" "true"
        add_option "updates-mirror" "`eval_gettext "set the update mirror location"`" "advanced" "true"
        ;;
    before-install)
        SECURITY_MIRROR=${SECURITY_MIRROR:-"http://security.ubuntu.com/ubuntu"}
        UPDATES_MIRROR=${UPDATES_MIRROR:-"http://archive.ubuntu.com/ubuntu"}
        ;;
    configure)
        if [ -n "$option_security_mirror_value" ]; then
            SECURITY_MIRROR="$option_security_mirror_value"
        fi
        if [ -n "$option_updates_mirror_value" ]; then
            UPDATES_MIRROR="$option_updates_mirror_value"
        fi
        ;;
    after-install)
        add_mirrors "$SECURITY_MIRROR $DIST-security $COMPONENTS"
        add_mirrors "$UPDATES_MIRROR $DIST-updates $COMPONENTS"
        ;;
esac
