--- a/usr/src/uts/i86pc/os/startup.c	Mon Nov 23 16:18:43 2009 -0800
+++ b/usr/src/uts/i86pc/os/startup.c	Mon Nov 23 15:29:44 2009 -0800
@@ -1509,6 +1509,9 @@
 	if (modload("fs", "dev") == -1)
 		halt("Can't load dev");
 
+	if (modload("fs", "procfs") == -1)
+		halt("Can't load procfs");
+
 	(void) modloadonly("sys", "lbl_edition");
 
 	dispinit();