bootstrap: use new libfs interface to handle requests

sys/bootstrap/main.c

@@ -185,6 +185,7 @@ int main(
 		return -1;
 	}
 
+	fs_context_set_channel(fs, channel);
 	enum fs_status fs_status = fs_context_mount_filesystem(
 		fs,
 		tar_mount,
@@ -196,6 +197,8 @@ int main(
 	}
 
 	while (1) {
+		fs_context_handle_request(fs);
+#if 0
 		xpc_msg_t msg;
 		kern_status_t status = xpc_msg_recv(channel, &msg);
 		if (status != KERN_OK) {
@@ -219,6 +222,7 @@ int main(
 			kern_logf("message reply error %d", status);
 			continue;
 		}
+#endif
 	}
 
 	return 0;