read_sector
sector = read_sector (ptable, buf, part, PART_ROOT);
sector = read_sector (ptable, buf, part, PART_START);
sector = read_sector (ptable, buf, part, PART_END);
u_int32_t read_sector (struct ahdi_ptable*, char *, int, int);
static bool read_sector(void *, uint8_t *, daddr_t);
p->io.read = read_sector;
if (read_sector(a, this_ext, 1)) {
if (read_sector(a, vrs, 1))
if (read_sector(a, vrs, 1))
if (read_sector(a, vrs, 1))
if (read_sector(a, label_sector, SCANBLOCKS)) {