diff -Nurp multipath-tools-0.4.7.orig/libmultipath/util.c multipath-tools-0.4.7/libmultipath/util.c
--- multipath-tools-0.4.7.orig/libmultipath/util.c	2007-01-15 20:21:05.000000000 +0000
+++ multipath-tools-0.4.7/libmultipath/util.c	2007-01-15 20:22:07.000000000 +0000
@@ -53,6 +53,16 @@ filepresent (char * run) {
 }
 
 int
+isblockdev (char * run) {
+	struct stat buf;
+	
+	if(stat(run, &buf))
+		return 0;
+
+	return S_ISBLK(buf.st_mode);
+}
+
+int
 get_word (char * sentence, char ** word)
 {
 	char * p;
diff -Nurp multipath-tools-0.4.7.orig/multipath/main.c multipath-tools-0.4.7/multipath/main.c
--- multipath-tools-0.4.7.orig/multipath/main.c	2007-01-15 20:21:05.000000000 +0000
+++ multipath-tools-0.4.7/multipath/main.c	2007-01-15 20:22:07.000000000 +0000
@@ -383,7 +383,7 @@ main (int argc, char *argv[])
 
 		strncpy(conf->dev, argv[optind], FILE_NAME_SIZE);
 
-		if (filepresent(conf->dev))
+		if (filepresent(conf->dev) && isblockdev(conf->dev))
 			conf->dev_type = DEV_DEVNODE;
 		else if (sscanf(conf->dev, "%d:%d", &i, &i) == 2)
 			conf->dev_type = DEV_DEVT;