Any files that are in the
<literal>B1
</literal> or
<literal>B2
</literal> directories can be reached with the path
<filename>/A1/B1
</filename> or
<filename>/A1/B2
</filename> as necessary. Any files that were in
<filename>/A1
</filename> have been temporarily hidden. They will reappear if
<literal>B
</literal> is
<firstterm>unmounted
</firstterm> from
<literal>A
</literal>.