extern int do_vg_activate (int activate, char * const* const volgroups);
extern int do_lvresize (const char *device, int mbytes);
extern int do_resize2fs (const char *device);
extern int do_vg_activate (int activate, char * const* const volgroups);
extern int do_lvresize (const char *device, int mbytes);
extern int do_resize2fs (const char *device);