BOOTSEC_LOCATION
return BOOTSEC_LOCATION + (60 * 1024);
chain_stage1 (0, BOOTSEC_LOCATION, boot_part_addr);
if (grub_read ((char *) BOOTSEC_LOCATION, SECTOR_SIZE) != SECTOR_SIZE)
&& (*((unsigned short *) (BOOTSEC_LOCATION + BOOTSEC_SIG_OFFSET))
&& ! grub_memcmp ((char *) BOOTSEC_LOCATION + BOOTSEC_BPB_SYSTEM_ID,
*((unsigned long *) (BOOTSEC_LOCATION + BOOTSEC_BPB_HIDDEN_SECTORS))