--- a/src/replicant.adb	2018-05-28 20:21:54.000000000 +0200
+++ b/src/replicant.adb	2018-08-29 08:27:20.135223000 +0200
@@ -1180,6 +1180,7 @@
                   mount_nullfs (target      => bootdir,
                                 mount_point => location (slave_base, boot));
                   mount_tmpfs (slave_base & root_kmodules, 100);
+                  mount_tmpfs (slave_base & root_boot_fw, 100);
                end if;
             end;
             declare
@@ -1298,6 +1299,7 @@
             end if;
             if AD.Exists (location (dir_system, boot)) then
                unmount (slave_base & root_kmodules);
+               unmount (slave_base & root_boot_fw);
                unmount (location (slave_base, boot));
             end if;
             if AD.Exists (location (dir_system, usr_games)) then