+char **
+guestfs__inspect_get_roots (guestfs_h *g)
+{
+ /* NB. Doesn't matter if g->nr_fses == 0. We just return an empty
+ * list in this case.
+ */
+
+ size_t i;
+ size_t count = 0;
+ for (i = 0; i < g->nr_fses; ++i)
+ if (g->fses[i].is_root)
+ count++;
+
+ char **ret = calloc (count+1, sizeof (char *));
+ if (ret == NULL) {
+ perrorf (g, "calloc");
+ return NULL;
+ }
+
+ count = 0;
+ for (i = 0; i < g->nr_fses; ++i) {
+ if (g->fses[i].is_root) {
+ ret[count] = safe_strdup (g, g->fses[i].device);
+ count++;
+ }
+ }
+ ret[count] = NULL;
+
+ return ret;
+}
+