diff --git a/setup_board b/setup_board
index 0e005a9c34..697beab6b2 100755
--- a/setup_board
+++ b/setup_board
@@ -35,6 +35,10 @@ DEFINE_boolean skip_toolchain_update "${FLAGS_FALSE}" \
   "Don't update toolchain automatically."
 DEFINE_boolean skip_chroot_upgrade "${FLAGS_FALSE}" \
   "Don't run the chroot upgrade automatically; use with care."
+DEFINE_boolean regen_configs "${FLAGS_FALSE}" \
+  "Regenerate all config files (useful for modifying profiles w/out rebuild)."
+DEFINE_boolean regen_configs_only "${FLAGS_FALSE}" \
+  "Regenerate all config files and nothing else, even if nothing else is installed."
 
 FLAGS_HELP="usage: $(basename $0) [flags]
 
@@ -53,8 +57,6 @@ DEFINE_boolean quiet $FLAGS_FALSE \
   "Don't print warnings when board already exists."
 DEFINE_string variant "" \
   "Board variant."
-DEFINE_boolean regen_configs ${FLAGS_FALSE} \
-  "Regenerate all config files (useful for modifying profiles w/out rebuild)."
 
 
 # builds wrappers like equery-arm-generic.
@@ -197,7 +199,9 @@ BOARD_CHOST=$(get_board_chost ${BOARD})
 PORTAGE_PROFILE=$(get_board_profile "$BOARD")
 BOARD_BINHOST=$(generate_binhost_list)
 
-if [ -d "${BOARD_ROOT}" ]; then
+if [[ ${FLAGS_regen_configs_only} -eq ${FLAGS_TRUE} ]]; then
+  FLAGS_regen_configs=${FLAGS_TRUE}
+elif [[ -d "${BOARD_ROOT}" ]]; then
   if [[ ${FLAGS_force} -eq ${FLAGS_TRUE} ]]; then
     info "--force set.  Re-creating ${BOARD_ROOT}..."
     # Removal takes long. Make it asynchronous.
@@ -213,7 +217,7 @@ if [ -d "${BOARD_ROOT}" ]; then
     exit 0
   fi
 else
-  # Regenerating configs w/out a board root doesn't make sense.
+  # Missing board root and --regen_configs_only wasn't used.
   FLAGS_regen_configs=${FLAGS_FALSE}
 fi