if (root_directory)
root = root_directory;
- else if (root_image || n_bind_mounts > 0 || n_temporary_filesystems > 0) {
-
- /* If we are booting from an image, create a mount point for the image, if it's still missing. We use
- * the same mount point for all images, which is safe, since they all live in their own namespaces
- * after all, and hence won't see each other. We also use such a root directory whenever there are bind
- * mounts configured, so that their source mounts are never obstructed by mounts we already applied
- * while we are applying them. */
+ else {
+ /* Always create the mount namespace in a temporary directory, instead of operating
+ * directly in the root. The temporary directory prevents any mounts from being
+ * potentially obscured my other mounts we already applied.
+ * We use the same mount point for all images, which is safe, since they all live
+ * in their own namespaces after all, and hence won't see each other. */
root = "/run/systemd/unit-root";
(void) mkdir_label(root, 0700);
require_prefix = true;
- } else
- root = NULL;
+ }
n_mounts = namespace_calculate_mounts(
root,