option is called I<--ro-fish> or I<--fish> because these parameters
are compatible with L<guestfish(1)>.
+If you don't know what filesystems are contained in a guest or
+disk image, use L<virt-list-filesystems(1)> first:
+
+ virt-list-filesystems MyGuest
+
If you want to trace the libguestfs calls but without excessive
debugging, we recommend: