diff -up rpm-4.8.0/lib/psm.c.start-stop-callback rpm-4.8.0/lib/psm.c
--- rpm-4.8.0/lib/psm.c.start-stop-callback	2015-02-24 15:56:59.311631951 +0100
+++ rpm-4.8.0/lib/psm.c	2015-02-24 16:38:44.773953553 +0100
@@ -668,17 +668,23 @@ static rpmRC runScript(rpmpsm psm, Heade
     int xx;
     FD_t scriptFd;
     FD_t out = NULL;
-    rpmRC rc = RPMRC_FAIL; /* assume failure */
+    rpmRC stoprc, rc = RPMRC_FAIL; /* assume failure */
     int warn_only = 0;
     char *sname = NULL; 
     struct rpmtd_s prefixes;
 
+    scriptFd = rpmtsNotify(psm->ts, psm->te, RPMCALLBACK_SCRIPT_START, stag, 0);
+
     assert(argvp != NULL);
-    if (*argvp == NULL && script == NULL)
+    if (*argvp == NULL && script == NULL) {
+	rpmtsNotify(psm->ts, psm->te, RPMCALLBACK_SCRIPT_STOP, stag, RPMRC_OK);
 	return RPMRC_OK;
+    }
 
     if (*argvp && *argvp[0] && rstreq(*argvp[0], "<lua>")) {
-	return runLuaScript(psm, h, stag, *argvp, script, arg1, arg2);
+	rc = runLuaScript(psm, h, stag, *argvp, script, arg1, arg2);
+	rpmtsNotify(psm->ts, psm->te, RPMCALLBACK_SCRIPT_STOP, stag, rc);
+	return rc;
     }
     rasprintf(&sname, "%s(%s)", tag2sln(stag), rpmteNEVRA(psm->te));
 
@@ -733,7 +738,9 @@ static rpmRC runScript(rpmpsm psm, Heade
 	}
     }
 
-    scriptFd = rpmtsScriptFd(ts);
+    if (scriptFd == NULL)
+	scriptFd = rpmtsScriptFd(ts);
+
     if (scriptFd != NULL) {
 	if (rpmIsVerbose()) {
 	    out = fdDup(Fileno(scriptFd));
@@ -792,6 +799,10 @@ static rpmRC runScript(rpmpsm psm, Heade
 exit:
     rpmtdFreeData(&prefixes);
 
+    /* Map warn-only errors to "notfound" for script stop callback */
+    stoprc = (rc != RPMRC_OK && warn_only) ? RPMRC_NOTFOUND : rc;
+    rpmtsNotify(psm->ts, psm->te, RPMCALLBACK_SCRIPT_STOP, stag, stoprc);
+
     /* notify callback for all errors, "total" abused for warning/error */
     if (rc != RPMRC_OK) {
 	if (warn_only) {
diff -up rpm-4.8.0/lib/rpmcallback.h.start-stop-callback rpm-4.8.0/lib/rpmcallback.h
--- rpm-4.8.0/lib/rpmcallback.h.start-stop-callback	2015-02-24 16:43:40.462626615 +0100
+++ rpm-4.8.0/lib/rpmcallback.h	2015-02-24 16:42:07.422988105 +0100
@@ -27,7 +27,9 @@ typedef enum rpmCallbackType_e {
     RPMCALLBACK_REPACKAGE_STOP	= (1 << 12),	/* obsolete, unused */
     RPMCALLBACK_UNPACK_ERROR	= (1 << 13),
     RPMCALLBACK_CPIO_ERROR	= (1 << 14),
-    RPMCALLBACK_SCRIPT_ERROR	= (1 << 15)
+    RPMCALLBACK_SCRIPT_ERROR	= (1 << 15),
+    RPMCALLBACK_SCRIPT_START	= (1 << 16),
+    RPMCALLBACK_SCRIPT_STOP	= (1 << 17),
 } rpmCallbackType;
 
 /**
diff -up rpm-4.8.0/lib/rpminstall.c.start-stop-callback rpm-4.8.0/lib/rpminstall.c
--- rpm-4.8.0/lib/rpminstall.c.start-stop-callback	2015-02-24 16:43:54.848416102 +0100
+++ rpm-4.8.0/lib/rpminstall.c	2015-02-24 16:44:52.453573142 +0100
@@ -196,6 +196,10 @@ void * rpmShowProgress(const void * arg,
 	break;
     case RPMCALLBACK_SCRIPT_ERROR:
 	break;
+    case RPMCALLBACK_SCRIPT_START:
+	break;
+    case RPMCALLBACK_SCRIPT_STOP:
+	break;
     case RPMCALLBACK_UNKNOWN:
     default:
 	break;
diff -up rpm-4.8.0/lib/rpmts.c.start-stop-callback rpm-4.8.0/lib/rpmts.c
--- rpm-4.8.0/lib/rpmts.c.start-stop-callback	2015-02-24 16:57:19.362669093 +0100
+++ rpm-4.8.0/lib/rpmts.c	2015-02-24 17:04:25.624453250 +0100
@@ -750,6 +750,13 @@ void * rpmtsNotify(rpmts ts, rpmte te,
 		rpmCallbackType what, rpm_loff_t amount, rpm_loff_t total)
 {
     void * ptr = NULL;
+
+    if ((what == RPMCALLBACK_SCRIPT_START || what == RPMCALLBACK_SCRIPT_STOP) &&
+	!rpmExpandNumeric("%{?_accept_script_stop_start_callbacks}")) {
+
+	return NULL;
+    }
+
     if (ts && ts->notify) {
 	Header h = NULL;
 	fnpyKey cbkey = NULL;
diff -up rpm-4.8.0/python/rpmmodule.c.start-stop-callback rpm-4.8.0/python/rpmmodule.c
--- rpm-4.8.0/python/rpmmodule.c.start-stop-callback	2015-02-24 16:45:10.279312290 +0100
+++ rpm-4.8.0/python/rpmmodule.c	2015-02-24 16:46:27.364184274 +0100
@@ -446,6 +446,8 @@ static int initModule(PyObject *m)
     REGISTER_ENUM(RPMCALLBACK_UNPACK_ERROR);
     REGISTER_ENUM(RPMCALLBACK_CPIO_ERROR);
     REGISTER_ENUM(RPMCALLBACK_SCRIPT_ERROR);
+    REGISTER_ENUM(RPMCALLBACK_SCRIPT_START);
+    REGISTER_ENUM(RPMCALLBACK_SCRIPT_STOP);
 
     REGISTER_ENUM(RPMPROB_BADARCH);
     REGISTER_ENUM(RPMPROB_BADOS);