1 files changed, 3 insertions, 0 deletions
diff --git a/ct-ng.in b/ct-ng.in
index 0120d35..0a12e09 100644
--- a/ct-ng.in
+++ b/ct-ng.in
@@ -145,7 +145,10 @@ defconfig: check-config
 	$(SILENT)CT_VCHECK=save $(CONF) --defconfig=$${DEFCONFIG-defconfig} $(KCONFIG_TOP)
 
 upgradeconfig: .config check-config
+	$(SILENT)cp .config .config.before-upgrade
 	$(SILENT)CT_UPGRADECONFIG=yes $(bash) $(CT_LIB_DIR)/scripts/version-check.sh .config
+	@$(CT_ECHO) "Saving .config as .config.before-olddefconfig before running 'ct-ng olddefconfig'"
+	$(SILENT)cp .config .config.before-olddefconfig
 	$(SILENT)$(CONF) --olddefconfig $(KCONFIG_TOP)
 	@$(CT_ECHO) "Done. You may now run 'ct-ng menuconfig' to edit the configuration."