Index: contrib/arch/uspace/lib/libfs/fnc.libfs_lookup
===================================================================
--- contrib/arch/uspace/lib/libfs/fnc.libfs_lookup	(revision 0a1a313fc7edf7be3a41a16a90b8a500d6c98651)
+++ contrib/arch/uspace/lib/libfs/fnc.libfs_lookup	(revision f53cc810d7463aaaf19bb505007b1bede5cb3a96)
@@ -1,4 +1,4 @@
 (
-	alternative (fs; tmpfs; fat; devfs) {
+	alternative (fs; tmpfs_nested; fat_nested; devfs_nested) {
 		!fs.lookup
 	}
Index: contrib/arch/uspace/lib/libfs/fnc.libfs_mount
===================================================================
--- contrib/arch/uspace/lib/libfs/fnc.libfs_mount	(revision 0a1a313fc7edf7be3a41a16a90b8a500d6c98651)
+++ contrib/arch/uspace/lib/libfs/fnc.libfs_mount	(revision f53cc810d7463aaaf19bb505007b1bede5cb3a96)
@@ -2,5 +2,5 @@
 	?ipc_m_connection_clone ;
 	?ipc_m_data_write /* mount options */ {
-		alternative (fs; tmpfs; fat; devfs) {
+		alternative (fs; tmpfs_nested; fat_nested; devfs_nested) {
 			!fs.ipc_m_connect_to_me ;
 			!fs.mounted {
Index: contrib/arch/uspace/lib/libfs/fnc.libfs_stat
===================================================================
--- contrib/arch/uspace/lib/libfs/fnc.libfs_stat	(revision 0a1a313fc7edf7be3a41a16a90b8a500d6c98651)
+++ contrib/arch/uspace/lib/libfs/fnc.libfs_stat	(revision f53cc810d7463aaaf19bb505007b1bede5cb3a96)
@@ -1,3 +1,3 @@
 (
-	?fs.ipc_m_data_read
+	?ipc_m_data_read
 )