diff --git a/.gitignore b/.gitignore
index c073262..e8346ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,7 +4,7 @@ __pycache__/
 compile_commands.json
 
 sysroot/bin
-sysroot/usr/bin
+sysroot/usr
 
 rust/target
 yunq/venv
diff --git a/scripts/qemu.sh b/scripts/qemu.sh
index c3c6526..1fc4eb9 100755
--- a/scripts/qemu.sh
+++ b/scripts/qemu.sh
@@ -12,6 +12,13 @@ pushd $BUILD_DIR
 ninja 
 ninja install
 
+export CARGO_INSTALL_ROOT="${DIR}/../sysroot/usr/"
+
+# Need to pushd so rustup gets the toolchain from rust/rust_toolchain.toml
+pushd "${DIR}/../rust"
+cargo install --force --path "${DIR}/../rust/usr/testbed/"
+popd
+
 sudo sh ${DIR}/build_image.sh disk.img
 
 QEMU_ARGS=