extern void prepare_drive (const char *filename, prep_data *data,
const char *device);
extern void prep_error (prep_data *data, const char *filename, const char *fs, ...) __attribute__((noreturn, format (printf,3,4)));
extern void prepare_drive (const char *filename, prep_data *data,
const char *device);
extern void prep_error (prep_data *data, const char *filename, const char *fs, ...) __attribute__((noreturn, format (printf,3,4)));