diff --git a/src/packaging/MacOS/InstallationCheck b/src/packaging/MacOS/InstallationCheck
new file mode 100644
index 0000000000..5f33391ad8
--- /dev/null
+++ b/src/packaging/MacOS/InstallationCheck
@@ -0,0 +1,10 @@
+#!/bin/sh
+majorvers=`uname -r | sed 's/\..*//'`
+echo "InstallationCheck: os release is $majorvers"
+if [ $majorvers -ne 8 ]; then
+echo "InstallationCheck: not ok"
+   exit 112
+fi
+
+echo "InstallationCheck: ok"
+exit 0
diff --git a/src/packaging/MacOS/InstallationCheck.strings b/src/packaging/MacOS/InstallationCheck.strings
new file mode 100644
index 0000000000..62d12c1bce
--- /dev/null
+++ b/src/packaging/MacOS/InstallationCheck.strings
@@ -0,0 +1 @@
+"16" = "This OpenAFS release requires Tiger (10.4)"