extern char **do_ls (const char *directory);
extern char **do_list_devices ();
extern char **do_list_partitions ();
+extern char **do_pvs ();
+extern char **do_vgs ();
+extern char **do_lvs ();
extern guestfs_lvm_int_pv_list *do_pvs_full ();
extern guestfs_lvm_int_vg_list *do_vgs_full ();
extern guestfs_lvm_int_lv_list *do_lvs_full ();