diff --git a/build-tgr.sh b/build-tgr.sh
index eb3f7b2..fffb436 100755
--- a/build-tgr.sh
+++ b/build-tgr.sh
@@ -54,6 +54,16 @@ openssl genrsa -out target/keys/signingkey.pem 2048
 openssl rsa -in target/keys/signingkey.pem -outform PEM -pubout -out target/keys/signingpub.pem
 cp target/keys/signingpub.pem target/overlay/pub.pem
 
+echo "[+] Generating sample update package"
+mkdir -p home/update
+echo "sample update" > home/update/sample.txt
+tar -cvzf update.tgz home
+openssl dgst -sha256 -sign target/keys/signingkey.pem -out update.tgz.sig update.tgz
+cat update.tgz.sig > update.tgz.cc
+cat update.tgz >> update.tgz.cc
+mv update.tgz.cc target/overlay
+rm -rf home update.tgz
+
 echo "[+] Generating Monitoring SSH Key"
 ssh-keygen -t ecdsa -f target/keys/sshkey -q -N ""
 mkdir -p target/overlay/root/.ssh