Update install.sh

install.sh

@@ -81,6 +81,14 @@ else
     chmod +x /usr/local/bin/k0sctl
 fi
 
+# Install tinkerbell (required for node provisioning)
+info "Installing tinkerbell..."
+if ! curl -sSL -o /usr/local/bin/tinkerbell https://github.com/tinkerbell/tinkerbell/releases/latest/download/tinkerbell-embedded-linux-amd64; then
+    echo "Error: Failed to download tinkerbell." >&2
+    exit 1
+else
+    chmod +x /usr/local/bin/tinkerbell
+fi
 }
 
 main() {