diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c
index 1691c3ff23e8..d7edb9183742 100644
--- a/usr.bin/truss/syscalls.c
+++ b/usr.bin/truss/syscalls.c
@@ -74,7 +74,24 @@ struct syscall syscalls[] = {
 	  { { String | IN, 0} , { Hex, 1}, {Octal, 2}}},
 	{ "linux_open", 1, 3,
 	  { { String, 0 }, { Hex, 1}, { Octal, 2 }}},
-	{ "close", 1, 1, { { Int, 0 } } },
+	{ "close", 1, 1,
+	  { { Int, 0 } } },
+	{ "link", 0, 2,
+	  { { String, 0 }, { String, 1 }}},
+	{ "unlink", 0, 1,
+	  { { String, 0 }}},
+	{ "chdir", 0, 1,
+	  { { String, 0 }}},
+	{ "mknod", 0, 3,
+	  { { String, 0 }, { Octal, 1 }, { Int, 3 }}},
+	{ "chmod", 0, 2,
+	  { { String, 0 }, { Octal, 1 }}},
+	{ "chown", 0, 3,
+	  { { String, 0 }, { Int, 1 }, { Int, 2 }}},
+	{ "mount", 0, 4,
+	  { { String, 0 }, { String, 1 }, { Int, 2 }, { Ptr, 3 }}},
+	{ "umount", 0, 2,
+	  { { String, 0 }, { Int, 2 }}},
 	{ "fstat", 1, 2,
 	  { { Int, 0},  {Ptr | OUT , 1 }}},
 	{ "stat", 1, 2,
@@ -108,6 +125,12 @@ struct syscall syscalls[] = {
 	  { { String | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
 	{ "linux_execve", 1, 3,
 	  { { String | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
+	{ "kldload", 0, 1, { { String | IN, 0 }}},
+	{ "kldunload", 0, 1, { { Int, 0 }}},
+	{ "kldfind", 0, 1, { { String | IN, 0 }}},
+	{ "kldnext", 0, 1, { { Int, 0 }}},
+	{ "kldstat", 0, 2, { { Int, 0 }, { Ptr, 1 }}},
+	{ "kldfirstmod", 0, 1, { { Int, 0 }}},
 	{ 0, 0, 0, { { 0, 0 }}},
 };